10.0 hu? That's sexy! John I appreciate your advice all the time but can you tell me your setup? Cam size and or dyno graphs etc. I want to see if the Ls3 can hold up to 7k with my cam. Thanks alot as always.

 

Sure. I was joking about you doing the testing. Kevin(WCMKD) has along thread about the manifolds. The 102 picked up on his car using the same dyno etc. The thing I got out of it was a big $$$ customer wanted the best #s the shop could get. They did (VA speed). Now comes the problem they built the motor flowed the heads and did a custom 1 off port job on the 102 intake. Thats not realalistic for most of us. I asked them about a price for the intake , but never received a price.

I'm thinking the fast does work but at what price per HP?

My combo is a 416 L92 block , 92 heads. 76 intake, hyd roller. with the best parts in the valve train. This is the key in my op. The valve train is where u should spend the money. It controls all the events good or bad.
We went with Moreal lifters, Pac springs, Rev valves inconel on the ex. ,hollow stem on the intake, smith rods, and rebuilt GM rockers.

The cam is a FTI from Ed Curtis 624,621, with 242 and 250. on a 112 +4. It was ground for a composite intake( long runners) The heads were hand ported and flowed buy the head shop. Flow #s are mid 300's from .500- .600 on the intake. On the exhaust they mid 200's from the same lift.:nod The intake was ported by my 15 year old son. Nothing special.

We have coated bearings as well as the pistons, and valves. The engine was built for N2O we have ben playing with a small 100-150 plate shot.
Was this a budget build? No but money was spent in the right places.

Your LS3 should handle 7000 easy. We spin ours to 6800 + The limiter is at 7200. Sorry no dyno graph. Bad day at the dyno. It made 508 and about the same torque. We broke the fly wheel bolts on the spray pass. On the dyno pro soft ware. The car made 770 hp and 676 lbft @ 6000 rpm on a 200 shot.

If you do the lifters get the tie bar type. I didn't . One of my only regrets. The buckets become a problem at high rpms and big lifts. The lifters will come out of the bucket and spin. Bad day for you if that happens.
Gotta go . heading to the 1/8 mile track Later.

 

Thanks John!
Good luck at the track! THE DA should be really good in the evening over there, let me know how it goes tonight.

Here is my set up

• Ls3 block
• Scat crank
• Eagle h beams
• Manley pistons with -2cc reliefs
• Piston walls and bearings have been coated with a microblue coating.
• ARP mains and head bolts
• motor had been built by AES racing
• heads are Lingenfelter polished and ported Ls3 heads, milled to 65cc's for 11.7-11.8 compression ratio ( gm mls gaskets) using comp 925 springs, hollow intake valves and inconel exhaust valves.
• cam will be a comp cam 243/259 .624 lift on both sides on a 114+3 using LsR lobes
• stock rockers with a trunion upgrade and comp chromoly pushrods.
• lifters I'm on the Fence with the Comp lifters I believe are the 860's?
Or should I use the Lunati street link bar setup??

Tell me what you think?

Ps To the OP I am not trying to high jack but I too am looking for concrete info. But if you feel like I have let me know and I'll start a new thread.
Sorry in advance

 

wazzzzz up good!!!!!!!!! Made 535rwhp cam/bolt-ons, on the same dyno i made 575 rwhp by way of wcch ls7 heads, ported fast 102 w/match ported nick williams throttle body....It was 102 degrees outside but im just guessing...on a better day i really do think the car would make more power, but then again dont we all I really wish i did before and after with the intake but maybe next time. Hows that z running and how many miles do you have on it now????

 

It should run really well. The Morals are the best for the money. Isky sells them as their brand but they are just rebranded. I think the R lobes are very aggressive you want the best springs and lifters for those cams.
Call AES and ask them what they recommend.

 

Hey Red! The Z is STRONG, I've got 22,000 miles on the old girl. Unfortunately, she's down right now, I grenaded my clutch racing a 750 rwhp Shelby GT500.

I keep kicking around the idea of the Fast 102, but I'm thinking I'll only get a handful (less than 10) additional rwhp peak, and maybe 15 in the midrange. I just can't justify the $1,800. for that.

 

Nobody?

Damn I can't believe it.

 

Damn this thread took off wow! Thanks for everyones input on this topic. I now have about 2300 miles on the fresh built motor an all i did was switch up the LSA from a 111 to a 111+3 an let me tell you it hits right where i want it an it is a nasty son of bitch... lol I am still running a t-56 with a 12-bolt an 4:10's on a 295/55/15. The car laid down 527/475 with a bad lifter an clutch problems... I finally installed a tick master, spec stg3+ an got new lifters, oil pump, an some other goodies an it's night an day different feels good to let it eat an be able to wide open throttle shift the car, but i feel with that the intake is still holding the real numbers back. Its a shame that these heads are still so new an that they just dont like making that much power through plastic, but **** it i'm sure this time it should lay down over 500lbz of torque Speed Density... lol So pretty much the fast piece has alot of extra material left inside of it that is holding back it's potential unlike the fast 92's. My shop monkey told that his friend just installed one on his car an that he is wanting to tune it as soon as they get his converter fixed an when they do i'm gonna see what the results were on it in the unported form first then they will take it off an begin the process of widdling away the material inside and test running until they find the sweet spot to make power. They said in Gm hightech that they didnt pick up anything below 4000 rpm in the april edition cam tests... So it must have to be ported a special way to work with the l92/ls3 combos for those of us not looking to lose torque for a peak number, but if i give up this fast battle then i'm going victor jr with a 4150 seen nasty results with autos on here running deep into the 9's an some knocking on door of the 8's with the right converter an a lil juicy juicy.

 

Im after all the power i can make at any RPM before i decide that it's going to get the kit on it for all that it's worth. The motor is a LME 408 11:5:1 comp short block with texas speed heads, cam, linkbar lifters, melling ported, double roller, L76, Meizere electric pump, powerbond balancer, an a ported 92mm TB.

 

^^^Im with you!!^^^
When I go tune my car, hopefully at the end of this month! I'm going to pull the intake out of my bro's Ls3 from his 2010 SS and tune it on the dyno with that. Then I have a deal with a sponsor and if the FAST doesn't perform for $1,000.00 plus $390.00 for a T/b then I can return it. SO we'll see.

 

I like my 102..

https://ls1tech.com/forums/dynamomet...-comments.html

 

There is enough people dissapointed with the results for me to shy away.

on an LS3: $900 intake, $450+ throttle body, single digit gains and some with no gains.... The results seem minimal if any at all.

Sorry I'd rather just get some gears and do some suspension work.

 

I hear you cowboy, we appreciate the input but were trying to compare the FAST 102 with the Ls3 intake and rectangle port heads.

 

It replaced the old 90/92 design with a brand new BETTER design WITH stock cube cars in mind.
Would it be worth it on a SI 346? Not to me ($/performance gain), but it will make more power.
On a H/C setup you will without a doubt gain a nice chunk. I did on my little 226 cam car and hand ported heads. Throw a nicer set of heads (AFR or the like) along with a mid 230 cam 600+ lift and it would have been an even bigger gain.
Stroker motors etc will gain that much more.
FI guys have a nice peace of mind also because it is constructed much better.

It has also been documented that it will pick up power over an ls3 intake.

 

Point me to the documentation please, because the only comparo I saw was the one Patrick G did with his G8 and there was really NO gain, besides he did his comparo On cathedral heads and he has a 6.0.

 

LSWND Nice #'s. Yea the Vic Jr can make some great power with juice or FI apps. My cam is not ground for one. If I do a 102 it will be withv a direct port on it and a 300 shot.
My son and I saw one on a truck at Flaco's new shop. Looked like a nice set up. He had a stand alone fuel system with it. Clean install.

Litle 88 thats a heck of a deal. Keep us posted.

 

The olny bad thing on a vic jr is that it looses so much at the bottom.

I will keep everyone posted on this. Hey if it works ill keep it, if not Ill go buy a used Ls3.....

 

Stock ls1, Kooks 1 7/8s longtubes.
went from 330rwhp to 345rwp with a 102 TB and 102 Intake

Temperature was 25 degrees higher on the 345 run.
I think i still have the dyno charts

 

FirebirdSS thanks for chiming in, but were trying to get to the bottom of the "is the Ls3 FAST worth getting compared to the Ls3 intake" dilema LOL.

 

haha Sorry. Didnt read it all.

This was from a ls6 manifold and a fairly stock car besides headers. Wish i had more for you.