Generation IV External Engine - Holley hi_ram issue l93 ls3 300-117/116

hey guys i've had 3 of these intakes so far and every one of them is off on the injector bosses depth from bank to bank

anyone else with this problem the cathedral ports seem to be fine just the l92/ls3 style

i've talked to holley tech a few times and they all say they will call back and never due

368862368863

hey guys i've had 3 of these intakes so far and every one of them is off on the injector bosses depth from bank to bank

anyone else with this problem the cathedral ports seem to be fine just the l92/ls3 style

i've talked to holley tech a few times and they all say they will call back and never due

368862368863

Hey there "260B4U",

I'm just now seeing this for the first time. I work for Holley and have just sent an email to those individuals capable of sorting out this situation.

If you have any more comments/responses, please feel free to pm me.

Thanks,

Blane

Please send us your contact information so we can figure out what the problem might be.

Our Tech Support call back systems requires you to confirm your phone number before the systems sets you up fpr a call back. It's automated so the Tech Guys.

PM m here and I will forward to the Tech Support guys to give you a call.

Thanks

Robin

i'm running a large injector 2200CC and im concerned that the injector purtrudes past the intake flange on one side and i think under heavy duty cycle this will cause pooling of fuel and poor atomization through out all duty cycles

i pm'd both of you my contact info
thank you

ttt
still waiting on a official response from mike(quality control @ holley

holley tech says:
"I have talked with Jim this morning and we have examined a manifold. Basically the issue the customer is complaining of is a non-issue. The fit and function of the injector placement will in no way hurt or change the performance from one bank to the other. They are so close that all the components, fuel rails etc…. fit as supposed to
Thanks,

Thanks
Ricky V. Richter"


their are whole websites and books dedacated to injector placment.. so i guess its not important to HOLLEY


I must admit that I am a little shocked that even from a fit and finish standpoint this is acceptable. The flanges that mount to the head are thicker and look different from side to side also which lead me to believe that there was either a casting issue or a cnc program issue that is the root cause of this whole thing..

You get what you pay for...

Looks like about an 1/8" difference from one to the other. Hard to judge from pictures. Post pictures of each with your injector sticking through.

I'm curious that you think in one instance it'll work as expected, but with whatever small protrusion difference (let's say my estimate of 1/8" is remotely close), that it'll just be a highly inefficient scenario of pooling fuel and poor atomization. Hard to understand that it goes from being OK to catastrophic with that small of a deviation..

I know for a fact Holley in NOT shipping anymore of these due to problems. A sponsor, whom I will not mention (so I don't get him in any trouble) told me this in a phone conversation yesterday. Sorry for your problem and sorry to hear about the sh!tty customer service from Holley. I would expect more out of them I will make sure I avoid their products in the future.

its about 150 thou difference from side to side from injector to flange
also from a injector mounting surface its different and that could cause a injector o-ring to push

do i think it will make a difference on a 500hp car no
i'm attempting to make over 1000 to the wheels it will make a difference in that scenario


Looks like about an 1/8" difference from one to the other. Hard to judge from pictures. Post pictures of each with your injector sticking through.

I'm curious that you think in one instance it'll work as expected, but with whatever small protrusion difference (let's say my estimate of 1/8" is remotely close), that it'll just be a highly inefficient scenario of pooling fuel and poor atomization. Hard to understand that it goes from being OK to catastrophic with that small of a deviation..

And there are Asshole's on here that talk Shit about PRO COMP being shotty. Send that shit back..

My High Horsepower cars and trucks, I find it hard to beat a sheet metal setup. Or an Edelbrock and elbow setup..

I have received two with this issue... addressed to Holley, and never got a response back from them.

heard about this from another sponsor, they have been waiting for the "revised" one to come in and said it could be months. guess I will go with the FAST instead.

OP, have you checked the cathedral port versions? Wondering if that is why they have been on backorder so long.

The cathedral versions I have seen do not have this problem. I have three in the shop now. However the three ls3 versions I have seen are all machined this way that the op posted about.

Mine is probably like this. I just started to have fueling/spark issues once I went on higher boost (1000hp). This might be it?

Mine is probably like this. I just started to have fueling/spark issues once I went on higher boost (1000hp). This might be it?Most likely. Both of the intakes I've gotten, had this issue. The first intake didn't even match up to the ports on my heads.

I heard the L92/LS3 version of the Edelbrock XT will be out for SEMA/PIR. I am waiting for that myself to put on my SSR.

I heard the L92/LS3 version of the Edelbrock XT will be out for SEMA/PIR. I am waiting for that myself to put on my SSR.

Any word on an LS7 port style from them?

hey holley employees as you can see stangkiller is have issues at high power levels i would bet that its because the injector is not spraying down on the same spot in that bank ..... can you confirm or denie that y'all are working on a revised ls3 lower and will you be issuing vouchers for us that have the poor quality version to get the updated version for free

Mine is probably like this. I just started to have fueling/spark issues once I went on higher boost (1000hp). This might be it?

Highly unlikely. Which problems are you having, fuel or spark? Totally different animals. Don't blame the boogie man when your tune is off.

Andrew

hey holley employees as you can see stangkiller is have issues at high power levels i would bet that its because the injector is not spraying down on the same spot in that bank ..... can you confirm or denie that y'all are working on a revised ls3 lower and will you be issuing vouchers for us that have the poor quality version to get the updated version for free



I dont want to even think about having issues with mine :(

Highly unlikely. Which problems are you having, fuel or spark? Totally different animals. Don't blame the boogie man when your tune is off.

AndrewTunes just dont go bad after 4 months. :judge:

I dont want to even think about having issues with mine :(

just received my 4th and 5th lower today and they are both still flawed one much worse then the other i may cut the runners off them both and make one good one out of the set of bad

I'm just going to send mine back and run an LS3 intake meanwhile they either fix it or the Edelbrock LS3 intake comes out. Not messing with this BS. Sucks I sold my hood to run this fucking intake, and I'm not even going to use it. Will never waste my time with Holley products in the future...

I'm just going to send mine back and run an LS3 intake meanwhile they either fix it or the Edelbrock LS3 intake comes out. Not messing with this BS. Sucks I sold my hood to run this fucking intake, and I'm not even going to use it. Will never waste my time with Holley products in the future...

i got a brand new stock LS3 intake if you want to buy it txt me

Wow! I'm so glad a seen this thread before I bought mine..I can't beloved the lack of quality coming from them.

Any updates on this? Does anyone have the LS7 version and does it have this same issue?

Any updates on this? Does anyone have the LS7 version and does it have this same issue?

it better not, i hope to go with that intake manifold...

Mine does not have this issue.

Mine does not have this issue.

Is yours an LS7 intake?

Any updates?

:corn:

I received my LS7 version. The injector positioning looks good. One of the bolt holes on the top cover is slightly off center, not much meat in this area but I dont think it should be an issue.

Any news with this as I was getting ready to order a LS3 version untill I saw this thread

Is yours an LS7 intake?

Mine is an LS3.

I heard there was a improperly machined batch, but that everything is corrected now. If you still have a lingering issue, contact the company you bought it from, or email me at john@motorsports-media.com and I will get the email to someone at the firm.

Glad they got it sorted out :) Thanks PSJ!

hey PSJ
maybe you can convince them to send me a new lower? since there all fixed now.... the techs at holly basically said all the issues i presented were cosmetic and had no effect on performance but this latest issue is HUGE safety hazard and COULD BLOW UP YOU CAR!!!!

im now on the 5th one and into it for porting work and a $1400 direct port custom plumbing job and i ran into this see below sure glad i checked before i caught my whole car on fire.... but now im into this intake for 1750 worth of porting and pluming not including the cost of the intake itself
378848378849
so when the fuel rail pressures up and shifts the (ls3) injectors out of the fuel rail and sprays everywhere and sets fire to you ride.....

oh man thats not good...... I received my 300-116 LS3 hi ram last week & it looks good but now seeing 260B4U injectors I looked into my injector holes & there is no lip or ridge to stop the injector, is there supposed to be?

I just recieved mine and I just got off the phone with Holley Tech. I gave them the link to this so hopefully they will address what is going on here.

As for mine I had to run a bottom hole tap in every hole. Not a big thing but they tap did have to cut alot to clean up the holes. Symple fix for those of us that have the tools and know how to fix.

I also ran into injector issues. Mine is a little differetn then yals issues. My bosses are machined down so far they fuel rail holes would not line up once the injectors were seated all the way. I run the taller LS1 style injector. I was able to mark, drill and tap new fuel rail holes between the two existing holes to line everything up. But if I had the shorter LS3 style injector I would have had to weld up a new boss unider the existing ones and drill and tap them to make it all fit right. Not something as symple to fix as running a bottom hole tap.

I am not presently asking for a replacement manifold since I was ablr to "finish" the manifold.

two fo the runners are machined quite a bit on the outside for the intake manifold bolt holes. This kills any room inside the port for porting those two runners. Ii is not an issue for me to orrect because I can tig this up myself and fix it myself if need be.

Still all and all I would expect any Holley product to fit correctly from the gitgo. Usually any Holley product you by is ready to bolt up without you having to finish the quality fit. Not really what I have come to expect from Hooley.

also last gripe:

It does not come with a throttle cable bracket and talking to the tech they do not offer a bracket for this manifold right now. Nor did he know of an aftermarket bracket thet will wrok and fit right.

Again, not an issue for me because I have the tools to custom build one but for others this will be an issue

x2 on re-tapping all the holes..... I had to do that too, especially the holes that hold down the fuel rails, they were nasty

I just recieved mine and I just got off the phone with Holley Tech. I gave them the link to this so hopefully they will address what is going on here.

As for mine I had to run a bottom hole tap in every hole. Not a big thing but they tap did have to cut alot to clean up the holes. Symple fix for those of us that have the tools and know how to fix.

I also ran into injector issues. Mine is a little differetn then yals issues. My bosses are machined down so far they fuel rail holes would not line up once the injectors were seated all the way. I run the taller LS1 style injector. I was able to mark, drill and tap new fuel rail holes between the two existing holes to line everything up. But if I had the shorter LS3 style injector I would have had to weld up a new boss unider the existing ones and drill and tap them to make it all fit right. Not something as symple to fix as running a bottom hole tap.

I am not presently asking for a replacement manifold since I was ablr to "finish" the manifold.

two fo the runners are machined quite a bit on the outside for the intake manifold bolt holes. This kills any room inside the port for porting those two runners. Ii is not an issue for me to orrect because I can tig this up myself and fix it myself if need be.

Still all and all I would expect any Holley product to fit correctly from the gitgo. Usually any Holley product you by is ready to bolt up without you having to finish the quality fit. Not really what I have come to expect from Hooley.

i re tapped all threads cause they didnt feel right when threading the fastener in

my main complaint is about the injector encroching on the oring mounting and the machine differences from side to side and product to product they are all different no 2 is alike

Any word on when they are fixing this issue? I hope they recalled all the old product from distributors

When I spoke to them they acted like they have never heard of any issues and did not even try to talk me into replacing mine. But then I also told them I had already fixed mine.

After reading this thread, 3 mths ago at the start of the thread Holley were aware of the issues here, they like many businesses tend to ignore problems in the hope they will go away.
Us guys that have these issues with people like this need to flame them to hell so others don't get caught up with their crap products. :mad:

It sure makes other businesses 'sponsors' on here that have impeccable customer service stand out.
Those very few firms know who they are, just wish others could learn from them.

Any updates?

I also experienced the fuel rail mounts being in the wrong spot. I didnt have any issues with the injector holes though, mine were perfect and even on both sides (ls7 mani).

I also experienced the fuel rail mounts being in the wrong spot. I didnt have any issues with the injector holes though, mine were perfect and even on both sides (ls7 mani).

Were the fuel mounts too high or too low?

I just recieved mine and I just got off the phone with Holley Tech. I gave them the link to this so hopefully they will address what is going on here.

As for mine I had to run a bottom hole tap in every hole. Not a big thing but they tap did have to cut alot to clean up the holes. Symple fix for those of us that have the tools and know how to fix.

I also ran into injector issues. Mine is a little differetn then yals issues. My bosses are machined down so far they fuel rail holes would not line up once the injectors were seated all the way. I run the taller LS1 style injector. I was able to mark, drill and tap new fuel rail holes between the two existing holes to line everything up. But if I had the shorter LS3 style injector I would have had to weld up a new boss unider the existing ones and drill and tap them to make it all fit right. Not something as symple to fix as running a bottom hole tap.

I am not presently asking for a replacement manifold since I was ablr to "finish" the manifold.

two fo the runners are machined quite a bit on the outside for the intake manifold bolt holes. This kills any room inside the port for porting those two runners. Ii is not an issue for me to orrect because I can tig this up myself and fix it myself if need be.

Still all and all I would expect any Holley product to fit correctly from the gitgo. Usually any Holley product you by is ready to bolt up without you having to finish the quality fit. Not really what I have come to expect from Hooley.

I think I have the same issue with the fuel rail mount holes. Are the injectors suppose to be pushed all the way down into the injector bosses on the intake? If so then my mount holes will fall in between the existing ones as well.

I have mine together and started the car. I still have a ton of work to make it ready to go to the track.

It looks like to me they figured out the injector bungs were too high because mine are cut short. With my tall injector that placed the fuel rail almost halfway between the two holes already drilled and tapped for the two different injector hight. I was lucky because i was able to symply makr and drill new mounting holes between the others. If I had the short injectors I would of had to tig weld below the injector mounting bosses so I could drill and tap holes to mount the fuel rails.

Other than that and no bracket for the throttle cable (which I built) I really do like what I see.

I had the intake flowed on three different cylinder heads. A set of Mass Motorsports Small Bore LS3 heads (these are some of the best heads for 346ci engine I have seen so far), my extreamly ported heads (lS3 factory casting) which out flow the Mass only because of the larger valve size and a ton of port work and welding, and a set of Mass Motorsports LS7 heads (which flow much better then mine).

Granted the LS7 port does not match my intake right, but even still the intake with my 92mm throttle body clamped on that head only cut the flow back by about 2 percent. That is with all the injector holes plugged, and all the open intake ports covered. Not bad, the Fast 102 LS7 manifold they had would lost over 10 percent of the air flow.

On the Mass LS3 small bore the intake had no lose, it did not help the head but it did not hurt it.

On my head it was anly about a .5% lose.

Now for the guys that are thinking they might want to switch from a single plane intake to this manifold, we also flowed the Mass small bore head with a single plane intake. It did NOT have any throttle body or elbow on top, so keep that in mind. The single planes we flowed only cut the head flow down about 2%. None of the plastic manifolds we flowed on the head would get within 13% of the head. Remember this is the small valve LS3 head for the small bore.

The single plane intakes would kill the head flow on my ported heads, but they have alot of work and large valves in them. Once the tight radius elbow is on I would expect the flow to drop more.

So I would say considering we flowed the Holley with a 92mm throttle body on it on severl different heads with minamul to no flow lose, this manifold looks to be a very nice peice, once the injector and fuel rail flaws are fixed.

The runners are very thick and would seam to have plenty of room to port on. I do not like the fact there are a few runners that had the outside machined to clearence for intake bolts. this will restrict taking to much material out of the intake when ported.

I also wish they would have made more room between the two intake holes on the back of the manifold. One is for the MAP sensor and the other for the brake booster. I taped the smaller hole for the MAP sensor for a fitting ( I run a 3 bar MAP that will not fit directly) This configuration of the two holes made everything a little tight.

I did install them all the way in to get the nozzle of the injectors to the correct depth.

I put this intake on my 2002 Firebird. I did have to remove the cowling all the way up to and slightly under the windshield. Doing this opened the dash up through the firewall. I blocked the air inlet to the passenger compartment on the passenger side. I built ignition coil rail stands and located my coils inside the steal dash, ran longer MSD plug wires I cut to length. I do like the coils completly hidden from veiw.

I also ran all the engine wiring (I am running the BS3 system) under the intake manifold and the injector wires go from the center out past each runner to the injector. It really cleans up the wiring hidding them like that.

I have some pics I will try and post up.

I am not finished building the car but here it is installed. Not the ignition coils are hidden.

The last one is the old intake and elbow on the car.

The throttle cable bracket I have on it in the pics is a stock LS1 bracket. It did not work out like that. It was too high. I built a lower bracket and fixed the sharp and on the cable.

I am not finished building the car but here it is installed. Not the ignition coils are hidden.

The last one is the old intake and elbow on the car.

Do you have any pictures of your injector bungs? You said yours were cut down? My injector sits high in the bore almost seems the spray will hit the injector bore walls.

I did not take any pictures. I did push the injectors all the way in and mounted the fuel rail were I wanted it so everything fit right. I can tell you my injector nozle tips are the same depth as the single plane was.

Are you running the tall injectors (LS1 length) or shart injectors (LS3 length).

I did install them all the way in to get the nozzle of the injectors to the correct depth.

I put this intake on my 2002 Firebird. I did have to remove the cowling all the way up to and slightly under the windshield. Doing this opened the dash up through the firewall. I blocked the air inlet to the passenger compartment on the passenger side. I built ignition coil rail stands and located my coils inside the steal dash, ran longer MSD plug wires I cut to length. I do like the coils completly hidden from veiw.

I also ran all the engine wiring (I am running the BS3 system) under the intake manifold and the injector wires go from the center out past each runner to the injector. It really cleans up the wiring hidding them like that.

I have some pics I will try and post up.

Thank you.

I did not take any pictures. I did push the injectors all the way in and mounted the fuel rail were I wanted it so everything fit right. I can tell you my injector nozle tips are the same depth as the single plane was.

Are you running the tall injectors (LS1 length) or shart injectors (LS3 length).

I'm running the tall ls1 style injector (acceleronics 96lbs) when i pushed them all the way down with the rail mine lined up with the top bolts hole on the manifold. my only concern was they seem kinda high up.

Were the fuel mounts too high or too low?

Either, really. They were too high for the ls3 short injectors (manifold isnt made for short injectors, and holley specifies that, actually) but they were too low for medium length injectors too (one hole above, one below), as my spacers did not line up correctly either. I slotted the fuel rail.

How tall are your injector bungsfrom the flange face to the top?

Do you have any pictures of your injector bungs? You said yours were cut down? My injector sits high in the bore almost seems the spray will hit the injector bore walls.

Mine seem to be perfect.

How tall are your injector bungsfrom the flange face to the top?

I'll take a measurement sunday, I have to pull the engine out of the car, so I'll have the intake off.

My injectors might be the medium ones. I have had four different sets on this engine over the years and I alwasy have to change the fuel rail heigth. I forget which length they are.

I have a set of 220# injectors and one set of Mike Moran 500# injectors I would love to grow into some day.:) That would take nitro to get to I think. Might use one or two for meth injection in the charge piping.

Mine seem to be perfect.

Mine look to fit the same.

This is how mine sit, the injectors are fully seated and my rails bolted on without any mods.

http://i134.photobucket.com/albums/q114/Xpeditious/8E642692-29BD-4CF2-AAFF-6C32DE0BE765-48296-000010A2C5AA0242.jpg

http://i134.photobucket.com/albums/q114/Xpeditious/AF21F663-8246-4B9E-9935-24FB72ED56ED-48296-000010A2CC7BF2C2.jpg

http://i134.photobucket.com/albums/q114/Xpeditious/7BE1058D-B644-42F7-90BF-B80F28558BF3-48296-000010A2D2F97C11.jpg

http://i134.photobucket.com/albums/q114/Xpeditious/272260AA-D023-4A56-9B82-94BB3200206A-48296-000010A2C09B5A88.jpg

Something to keep in mind. With the increased heigth (angle) it looks like this is a deep as they can make it. I have had no issues with the fuel hitting the injector boars.

We will see on the dino next month. So far idle tuning has been a breaze with this manifold. The car is not far enough to do any other tunning. Idles great at 700 rpm and 14.5 afr. Plugs are clean. I would think if the fuel was running down the bores I would already have issues.

Your bungs look taller then mine to me. I think mine are closer to the lines on the outside of your last bung in that picture.

Looking at my pics maybe they are the same. Hard to tell from pics.