LT1/4 Heads/cam #s?
What kind of RWHP #s are you guys getting these days w H/C 350 LT1/4s? Anything new and great as far as parts?
How did the LT1 AFR Eliminators work out? I have not been in the C4 section much in last 2 years, the AFR Elims. were all the rage and just coming out when I was last here a lot, but I don't see many posts, and they seem in stop in 2010. |
No one?
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It depends on how the exhaust is setup and how big the cam is. The numbers can vary dramatically. theres a few guys on ls1tech hitting 430 rwhp out of an aggressive cam with trickflows.
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I've not seen the big jump in HP since the Eliminators came out.
I'm still running the same old ported LT1 heads/cam/headers and putting out 375/345 on a stock lower end. It seems like the bigger number LTx engines are in F-Bodies. I'm assuming quite a bit less drivetrain loss. |
Straight axle will get more to the ground most times.
Think the big thing with the AFR is you can still get more power throttle response and torque with a smaller port. By the time you get an LTx head to breathe good they get to be a little on the biggish side. Not that its bad, technology just offers something better. Wish I could afford a pair! They are pretty nice. |
there's a big section of dyno results over on ls1tech. to keep it reasonably driveable, 400-420 is about the max for the street I'd say.
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Hey STL94LT1 good to see you, I see you pop in the C5 FI section now and then.
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Originally Posted by merim123
(Post 1579011855)
there's a big section of dyno results over on ls1tech. to keep it reasonably driveable, 400-420 is about the max for the street I'd say.
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Theres plenty of guys using them seems they are more into track times than dyno #.
Mark Bychowski did a 3.62 stroker on his with a conservative cam and made 47x rwhp. Nice combo with AFR id use them before any ported factory head if $ permitted |
Originally Posted by cuisinartvette
(Post 1579012289)
Theres plenty of guys using them seems they are more into track times than dyno #.
Mark Bychowski did a 3.62 stroker on his with a conservative cam and made 47x rwhp. Nice combo with AFR id use them before any ported factory head if $ permitted |
i'd like to see if the new AFRs have something in them, but that's a lot of coin and not many guys investing in LTx. Advanced Induction has some nice setup of TFS heads too.
If I need another motor, it's hard for me to say I'd keep the lt1 and not switch over. I'm running the efi 24x setup on mine and let me tell you, it's like a different motor, especially up top. |
Originally Posted by 95wht6spd
(Post 1579004639)
What kind of RWHP #s are you guys getting these days w H/C 350 LT1/4s? Anything new and great as far as parts?
How did the LT1 AFR Eliminators work out? I have not been in the C4 section much in last 2 years, the AFR Elims. were all the rage and just coming out when I was last here a lot, but I don't see many posts, and they seem in stop in 2010. 396 H/C LT1 with TPIS heads 405 RWHP / 415 RWTQ (230/236 cam) 396 H/C LT1 with AFR 195 Elim Comp 445 RWHP / 440 RWTQ (bigger injectors / 58 TB ) |
Basic 383 LT4 with AFR LT4 195's,52mm TB,232/236 cam,ewp,SW 1 5/8 long tubes,2.5 corsa cat back with hi flow cats.
442 rwhp 419rwtq I have been wondering if 1 3/4 headers would help any and have also been thinking about one of AI's cams as well. I built this with driveability in mind rather than max power so there may be some more power to be had at the expense of street manners. |
Originally Posted by 95wht6spd
(Post 1579012195)
Hey STL94LT1 good to see you, I see you pop in the C5 FI section now and then.
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Originally Posted by 96 lt-4
(Post 1579014767)
Basic 383 LT4 with AFR LT4 195's,52mm TB,232/236 cam,ewp,SW 1 5/8 long tubes,2.5 corsa cat back with hi flow cats.
442 rwhp 419rwtq I have been wondering if 1 3/4 headers would help any and have also been thinking about one of AI's cams as well. I built this with driveability in mind rather than max power so there may be some more power to be had at the expense of street manners. |
I would expect some low end loss on a 350 but not as much on a 383.With 4.10 gears it won't matter much.
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