G5X4 dyno'd today...
Just call and talk to them tomorrow and pick their brains, I am sure that Sean, Mike, Louis, or Lou could give you some ideas. I am willing to bet that with just the change of the intake, you are not going to gain anymore than 15-20whp. But maybe with the cutout and intake you will get in the 30-40whp range. What kinda timing was this dyno at? If you were getting knock and pulling timing, you lost something there, just hard to say how much.
Brandon
Brandon
We dynoed it and tuned it?
First thing is first, Do a cranking compression test and a leak down. Take some pics of the exhaust, the Y and over the axle.
There isnt a little bit of power missing, there is a LOT of power missing!
Ill talk to sean in the AM and see what he recalled about the setup.
Louis
First thing is first, Do a cranking compression test and a leak down. Take some pics of the exhaust, the Y and over the axle.
There isnt a little bit of power missing, there is a LOT of power missing!
Ill talk to sean in the AM and see what he recalled about the setup.
Louis
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not sure if it was pulling any timing...again, when i asked about knock sean said everything was good there so i figured it must not be pulling much out. i appreciate the inquiry mr g. like i said a few posts back , i know yalls products are tried and true, i'm just trying to figure out what's holding mine back....
your set up is terrable! too many people think add the most cam and watch it go. it seems you don't have the supporting parts for that cam. stock ls1 intake and if you have an un-ported th-body and stock mass air,that thing can't breath. the ls6 intake would give you 15-20hp and the cutout depending on how bad your exhaust flows 10-20hp.(i've seen cutouts add as much as 30hp on a shitty flowing exhaust) a ported th-body and a 85mm mass air would add another 12-15hp.i have the x4 cam,i don't think it was really worth it over the x3. you being a m6 w/3.42's and i asume a stock 10 bolt,your #'s for a dynojet are sad 
. you have some more work to do to get what you want.
. you have some more work to do to get what you want. Last edited by mike c.; Nov 17, 2006 at 03:30 PM.
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beleive me, i'm not one of your "add the most cam and watch it go" people. i had no idea that '98 cars had such bad heads (my mistake for not researching i guess). just left lg buying a cutout and talked to sean again about it. he said timing was around 27 and that 355rwhp on a '98 car with the x4, a ls1 intake, and my exhaust is about what he'd expect (all mods in sig).
i hope i don't meet any 01-02 cars with bolt ons on the street, they might outrun me....
i hope i don't meet any 01-02 cars with bolt ons on the street, they might outrun me....
Originally Posted by mike c.
your set up is terrable! too many people think add the most cam and watch it go. it seems you don't have the supporting parts for that cam. stock ls1 intake and if you have an un-ported th-body and stock mass air,that thing can't breath. the ls6 intake would give you 15-20hp and the cutout depending on how bad your exhaust flows 10-20hp.(i've seen cutouts add as much as 30hp on a shitty flowing exhaust) a ported th-body and a 85mm mass air would add another 12-15hp.i have the x4 cam,i don't think it was really worth it over the x3. you being a m6 w/3.42's and i asume a stock 10 bolt,your #'s for a dynojet are sad . you have some more work to do to get what you want.
. you have some more work to do to get what you want.
FormerVendor
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From: Mpls., MN
LS6 manifold should be worth about 20 rwhp..... the exhaust cutout should be located right behind the Y to be the most effective (killing the pressure wave in the exhaust BEFORE it runs the length of the car is what makes the engine run like it has open headers, putting it in the rear just isn't very effective). As far as the cam goes, I haven't seen the specs, but if it's bigger than 230 deg. @ .050 on the intake, it is too big for stock heads ( unless you're planning on running 4.56 gears and shifting it at 7000+. Yes.... I know.... they can make a big dyno number, but that doesn't mean they run fast in the car without completely changing the driveline (see previous sentence).
Brian
HiTech Motorsport
Brian
HiTech Motorsport
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Well with all the numbers to the side, how do YOU like the car. Does it feel good to ya? Just remember it's only going to get better for ya. So don't beat yourself up to much about it.
Have fun with the car!
O how does it sound
Have fun with the car!
O how does it sound
I did talk to sean, just didnt have the opportunity to post. The exhaust leaves a lot to be desired. Its wrinkle bent as well.
It did have a fram airfilter in it as well as the stock 98 intake with the EGR plugged.
It should make 400, an we both agree that a good intake, filter, MAF and some decent headers/duals or nice Y with a dump/cutout would solve the majority of the problem.
The biggest problem is that we dont know what it dynoed before. We do get some older LSxs in the shop, and they are tired. Most of the time they put out well below 300/310. I have seen them as low as 280/295. Sad, but true.
Louis
It did have a fram airfilter in it as well as the stock 98 intake with the EGR plugged.
It should make 400, an we both agree that a good intake, filter, MAF and some decent headers/duals or nice Y with a dump/cutout would solve the majority of the problem.
The biggest problem is that we dont know what it dynoed before. We do get some older LSxs in the shop, and they are tired. Most of the time they put out well below 300/310. I have seen them as low as 280/295. Sad, but true.
Louis
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Sounds like a lot of issues. I put down 403 rwhp with the g5x3 cam only. Supporting mods were 78 mm fast intake, and pro long tube headers, VaraRam with K&N filter and LS1 edit by Lou Gigliotti himself. I was very happy. Your car must be choking. I have a friend that is making 420 rwhp cam only with supporting mods in his camaro SS. Good luck, I am sure the guys at LG Motorsports will help you figure out what you need to correct your situation. Sean is the man.
Thread Starter
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well again i appreciate you looking into it mr g. it shouldn't be too "tired" though with it being a new motor and all, maybe not quite broke in would be a better sum up. i'm going to get this cutout installed (right after the y), hunt down a ls6 intake and good filter, and put on these 315's i'm headed to houston in the morning to buy and then i imagine i'll be pretty satisfied. thanks everyone for the help, and as soon as i get some better parts on here i'll post the new data....
Originally Posted by Louis
I did talk to sean, just didnt have the opportunity to post. The exhaust leaves a lot to be desired. Its wrinkle bent as well.
It did have a fram airfilter in it as well as the stock 98 intake with the EGR plugged.
It should make 400, an we both agree that a good intake, filter, MAF and some decent headers/duals or nice Y with a dump/cutout would solve the majority of the problem.
The biggest problem is that we dont know what it dynoed before. We do get some older LSxs in the shop, and they are tired. Most of the time they put out well below 300/310. I have seen them as low as 280/295. Sad, but true.
Louis
It did have a fram airfilter in it as well as the stock 98 intake with the EGR plugged.
It should make 400, an we both agree that a good intake, filter, MAF and some decent headers/duals or nice Y with a dump/cutout would solve the majority of the problem.
The biggest problem is that we dont know what it dynoed before. We do get some older LSxs in the shop, and they are tired. Most of the time they put out well below 300/310. I have seen them as low as 280/295. Sad, but true.
Louis
Big Lou, Little Louis Im Jr. Sr goes by LG Motorsports as the screen name.
Chad, Yea, I turned PMs off. email is much easier to track in the long run. I was turning 50+ PMs/week.
Im Jr. Sr goes by LG Motorsports as the screen name.Chad, Yea, I turned PMs off. email is much easier to track in the long run. I was turning 50+ PMs/week.
Originally Posted by Louis
Big Lou, Little Louis Im Jr. Sr goes by LG Motorsports as the screen name.
Chad, Yea, I turned PMs off. email is much easier to track in the long run. I was turning 50+ PMs/week.
Im Jr. Sr goes by LG Motorsports as the screen name.Chad, Yea, I turned PMs off. email is much easier to track in the long run. I was turning 50+ PMs/week.
Do I ever know about that. 350 just isn't enough sometimes. I'll send you a email here in a sec. 
