Track Results of LS2 Intake
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From: Fayettenam, North Cakalki
Originally Posted by See5
Tuning ?
All in all we have made 30 pulls on the rollers.
you have a 90mm intake and what size throttle body?
Brad
But..... Before I shell out big buck- were you able to dyno with an LS6/ported TB setup?
I'd like to see what the difference is between the LSX90 and that on a h/c 346 setup.
Thanks
Ben
I'd like to see what the difference is between the LSX90 and that on a h/c 346 setup.
Thanks
Ben
Originally Posted by V-10 Killer
Well that's that then, I just ordered my LSX intake 
This is getting to be an expensive year.
This is getting to be an expensive year.
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From: Fayettenam, North Cakalki
Sorry Guys. Did not have time to Try the LS6 today.
There are others on this board that have seen Gains from the LSX on a H/C 346 vs an LS6/PTB.
Look at this Intake as an Investment. It Will not be a large Increase for the money spent. But It has alot of features that make it valuable. It still costs to damn much tho!
If you are worried about cost just get an LS6 with a ported TB.
Brad
There are others on this board that have seen Gains from the LSX on a H/C 346 vs an LS6/PTB.
Look at this Intake as an Investment. It Will not be a large Increase for the money spent. But It has alot of features that make it valuable. It still costs to damn much tho!
If you are worried about cost just get an LS6 with a ported TB.
Brad
Originally Posted by RX-Ben
Before I shell out big buck- were you able to dyno with an LS6/ported TB setup?
I'd like to see what the difference is between the LSX90 and that on a h/c 346 setup.
Thanks
Ben
I'd like to see what the difference is between the LSX90 and that on a h/c 346 setup.
Thanks
Ben
I'm installing a 12 bolt, changing driveshafts, nitrous kits, MAF's, airlids.....
It won't be a fair comparison
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From: Fayettenam, North Cakalki
Originally Posted by Brian2001SS
Hey, Is FAST intakes paying you to post. lol
I wish
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From: Plano, Tx.
Thanks for the testing Squintz.
It looks like the LS2 intake doesn't make any more power than the LS6 intake, and a lsx 90mm usually gains around 20hp/20torque over a ls6 intake/ported tb on a heads/cam 346, so I wouldn't expect the ls2 to make big gains over a ls6 intake.
I have the 78mm lsx on my car now, but I was going to take that off in a week or two and test it against the ls6 and then the 90mm a couple of weeks later.
It looks like the LS2 intake doesn't make any more power than the LS6 intake, and a lsx 90mm usually gains around 20hp/20torque over a ls6 intake/ported tb on a heads/cam 346, so I wouldn't expect the ls2 to make big gains over a ls6 intake.
I have the 78mm lsx on my car now, but I was going to take that off in a week or two and test it against the ls6 and then the 90mm a couple of weeks later.
Last edited by Cobraeater; Dec 3, 2004 at 03:20 PM.
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From: Fayettenam, North Cakalki
I hate to be the guy to break the news. I really hoped the LS2 would work better.
I would like to see more results from a larger CID motor.
Check out Derty's post in this thread.
https://ls1tech.com/forums/showthrea...5&page=1&pp=20
They made more power on a 383cid with the LS2 over the LS6. But the gains were not untill 5000rpm.
Brad
I would like to see more results from a larger CID motor.
Check out Derty's post in this thread.
https://ls1tech.com/forums/showthrea...5&page=1&pp=20
They made more power on a 383cid with the LS2 over the LS6. But the gains were not untill 5000rpm.
Brad
Brad... did you switch the fuel pressure regulators out like Derty explained? I hadnt heard that part before, and I didnt recall you saying you had done that.
Other testing has shown the LS2 intake picking up a tiny bit of power over the FAST 90 under 5000 rpm.
Im wondering perhaps if you didnt get your power back until you put the old 2000 fuel rails and FPR back on.
chris
Other testing has shown the LS2 intake picking up a tiny bit of power over the FAST 90 under 5000 rpm.
Im wondering perhaps if you didnt get your power back until you put the old 2000 fuel rails and FPR back on.
chris
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From: Fayettenam, North Cakalki
No Chris I did not do that. My fuel pressure would drop from 62lbs @ Idle/ part throttle to 57.5lbs at WOT and we were able to tune the AFR with no problems.
I did not have the gauge hooked up yesterday with the 2000 rail because I have some speed inc rails on the way. I left the sender off because of that.
If I loosepower with the Speed Rails then I will know that was the problem.
We did not have any fueling issues with either rail tho.
The first pull on the Fast intake with the tune for the LS2 we made 1 more hp.
But it was lean as Fark(14.8)
Could you link me to where Derty talked about the regulator?
Thanks!
Brad
I did not have the gauge hooked up yesterday with the 2000 rail because I have some speed inc rails on the way. I left the sender off because of that.
If I loosepower with the Speed Rails then I will know that was the problem.
We did not have any fueling issues with either rail tho.
The first pull on the Fast intake with the tune for the LS2 we made 1 more hp.
But it was lean as Fark(14.8)
Could you link me to where Derty talked about the regulator?
Thanks!
Brad
Originally Posted by SquintzPallatore
The first pull on the Fast intake with the tune for the LS2 we made 1 more hp.
But it was lean as Fark(14.8)
Could you link me to where Derty talked about the regulator?
But it was lean as Fark(14.8)
Could you link me to where Derty talked about the regulator?
Originally Posted by Derty
Stock lines will fit, but it's returnless and there is no pressure regulator in the fuel rail like the current LS6. As a result you need to take the pressure regulator of a 98 fuel pump and stick it in the same spot on a 99 and up fuel pump. It connects in the same location, just works different.
I think somehow something was a little off, and I dont think it was the intake airflow.
Do the 05 LS2 equipped cars have a pressure regulator elsewhere?
I have a LS2 intake,TB, rail and injectors ready to go and am desperately searching for a reason to be optimistic. It does not seem likely from all we know that the intake would be -20 hp penalty as compared to a FAST ???
I have a LS2 intake,TB, rail and injectors ready to go and am desperately searching for a reason to be optimistic. It does not seem likely from all we know that the intake would be -20 hp penalty as compared to a FAST ???
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From: Fayettenam, North Cakalki
In the post you reference above, it's post #7...
Keep in mind that the LS6 fuel rail does not have a regulator it looks like it does but it is called a pulsator. Not sure exactly what it does. The regulator is in the Tank and the Fuel system IS a return system. The return is in the back of the car there is a tee before the filter.
Just from looking at the runners in both intakes I can see where the LSX would have more port velocity. Thats just from lookin though.
If you think there was something else wrong but don't want to post here just send me a PM or hit me up on AIM Chris.
Brad