Ho do I get 300hp 91 L98
Thread Starter
Instructor
Joined: Mar 2003
Posts: 228
Likes: 7
From: Navarre fl
Ho do I get 300hp 91 L98
I would like to make 300HP with out breaking the bank need some help..Thanks
Currently: no pre cats, air pump replacement pulley, no frisbee, AFPR, Open air cleaner K&N Filter, 1:6RR,MSD coil and wires...
Currently: no pre cats, air pump replacement pulley, no frisbee, AFPR, Open air cleaner K&N Filter, 1:6RR,MSD coil and wires...
Last edited by darkred91; Jul 31, 2004 at 11:20 AM.
Team Owner
Joined: Sep 2001
Posts: 62,171
Likes: 1,735
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
There are a couple routes, but if you only want 300 I'd look into Joe90 and Vic'89's setups.
Hooker 2149 headers, whatever catback exhaust you like (the difference is sound only).
AS&M Runners, port your plenum,and a new accel or TPiS base...and you should be there.
Hooker 2149 headers, whatever catback exhaust you like (the difference is sound only).
AS&M Runners, port your plenum,and a new accel or TPiS base...and you should be there.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
If you want 300hp at the crank check out those recipes. For example, Vic'89 is making around 325chp with stock heads & cam.
My L98 was building close to 300hp at the crank with stock headers, stock heads & cam and slightly modified stock intake.
If you want 300hp at the pavement you will need around 360hp at the crank and that recipe is in the L98 mods results table on my site.
My L98 was building close to 300hp at the crank with stock headers, stock heads & cam and slightly modified stock intake.
If you want 300hp at the pavement you will need around 360hp at the crank and that recipe is in the L98 mods results table on my site.
Racer
Joined: Jul 2004
Posts: 389
Likes: 2
From: Howard Beach, NY
FYI
here's what im going with:
crane roller 214/222 @.050 .488/.509 lift w/ 1.5's
ported 882's - 231 cfm @.500"
lt-1 intake
headers, true duals, lt-1 mufflers
1.6's
chip
im told to expect a little over 400hp at the crank. id see more w/ bigger headers and a free-er flowing exhaust but i prefer the stock sound and look
here's what im going with:
crane roller 214/222 @.050 .488/.509 lift w/ 1.5's
ported 882's - 231 cfm @.500"
lt-1 intake
headers, true duals, lt-1 mufflers
1.6's
chip
im told to expect a little over 400hp at the crank. id see more w/ bigger headers and a free-er flowing exhaust but i prefer the stock sound and look
Safety Car
Joined: Jun 2000
Posts: 4,870
Likes: 25
From: Long Island, NY
Originally Posted by TA
My set-up is pretty similar to Vic's except I still have the stock exhaust manifold. See sig for mods and rw hp/tq numbers
300 HP at the crank is very doable with bolton's.
Vic
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Le Mans Master
Joined: Mar 2001
Posts: 9,464
Likes: 1
From: Modesto CA
Originally Posted by DrEvil11417
here's what im going with: crane roller 214/222 @.050 .488/.509 lift w/ 1.5's
I'm puting this together:-That Cam
-Vortec Heads (The Iron 64cc heads, milled to 58cc with a thin gasket, should be 10:1 compression)
-SD Vortec TPI base / AS&M Runners / Ported Plenum
With the Exhaust system I currently have, I'm shooting for 375bhp/500tq.
Safety Car
Joined: Feb 2000
Posts: 4,564
Likes: 110
From: Austin Texas
You should be able to get there easily with bolt-ons.
Don't know if I'd personally go with Vortec heads, but there are those who have done well with them. It just takes different manifold and setup than going with a "stock-style" system. You can get some impressive flow #'s from those stock AL heads if you send them to the right place.
Follow the link in my signature to see how we got 400 hp/500 lb/ft from the 355....
Don't know if I'd personally go with Vortec heads, but there are those who have done well with them. It just takes different manifold and setup than going with a "stock-style" system. You can get some impressive flow #'s from those stock AL heads if you send them to the right place.
Follow the link in my signature to see how we got 400 hp/500 lb/ft from the 355....
