Horsepower for a L98 engine
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
This is my recipe list. The #s in my sig are without tuning and before the nitrous and MSD stuff.
Click Here
[Modified by scorp508, 5:59 PM 4/1/2003]
Click Here
[Modified by scorp508, 5:59 PM 4/1/2003]
Le Mans Master
Joined: Jan 2002
Posts: 5,320
Likes: 4
From: Kyle TX (Because Mojo Made me fill it in)
Re:
Good info Scorp!
65Z01, is it the info you have on your website? If you have something different, please send it my way too. Email addy is in the sig now. Thanks!
[Modified by VetteNoob, 5:05 PM 4/1/2003]
65Z01, is it the info you have on your website? If you have something different, please send it my way too. Email addy is in the sig now. Thanks!
[Modified by VetteNoob, 5:05 PM 4/1/2003]
Drifting
Joined: Feb 2003
Posts: 1,978
Likes: 2
From: San Antonio Texas
Re: Horsepower for a L98 engine (michelc4)
:cool: 65Z01 Nice site...what is the 16038331 ECS used on?
I'd like to see that tip sheet too,If it's not too much trouble.
williamsmik9@aol.com Thanks!
:chevy
I'd like to see that tip sheet too,If it's not too much trouble.
williamsmik9@aol.com Thanks!
:chevy
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Melting Slicks
Joined: Jan 2002
Posts: 2,784
Likes: 3
From: Atlanta GA
Re: Horsepower for a L98 engine (L98 DRIVER)
Someone just post the darn thing.... Its going like Hotcakes... Everyone wants to see it.....
Is it the one with the Times for the 1/4 mile after each mod on the 90 Vette?
Is it the one with the Times for the 1/4 mile after each mod on the 90 Vette?
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: Horsepower for a L98 engine (Curveit)
Curveit, Gordon didn't tell me what that ESC module was used on; I was glad it cured my flase knock problems.
Gentlemen, since there have been so many requests for that L98 mods data I've put it onto my site. I'm having a little trouble right now with Geocities Page Builder but the essence is there. I'll update on Wed. after I've finalized my "L98 Mods Results" page.
Gentlemen, since there have been so many requests for that L98 mods data I've put it onto my site. I'm having a little trouble right now with Geocities Page Builder but the essence is there. I'll update on Wed. after I've finalized my "L98 Mods Results" page.
Le Mans Master
Joined: Apr 2000
Posts: 5,589
Likes: 0
From: DrunkDefender
CI 1-2-3-4-5-6-7-8 Veteran
CI-IV AutoX Champ
CI-IV Burnout Champ
St. Jude Donor '07-'10
Re: Horsepower for a L98 engine (65Z01)
If you can get away with it and can stand the noise (I like it, some dont) the exhaust is the easiest and cheapest place to get HP from an L98. True duals using 2.5" pipes, H or X pipe placed as far forward as possible, no cats and your choice of mufflers/catback. I used muffler eliminators. This netted me a solid 16rwhp at peak, more in other places and good torque gains at all rpms. Headers would help some too. Shorty headers didnt help much, longtubes would have been better. 1.6RR, afpr, air pump eliminator kit (dyno showed maybe 2-3 hp at most) but it cleans up the engine compartment and drops 20-25 lbs from the car. A good tune, bumped timing, larger runners, home ported plenum, accell or big mouth base etc etc. All these things can add up to alot of HP and Trq. My 1990 six speed had about 250 rwhp and 350 rwtrq and it had most, but not all the above mods.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: Horsepower for a L98 engine (65Z01)
OK, my "L98 Mods - Results Data" page is updated; please note the Comments are my own and not from the data source.
There are many paths to increase HP and performance of an L98; this data shows one of them. It also shows the potential of the TPI system and roughly what gains to expect from some specific mods.
I hope you find it interesting and a useful guide.
There are many paths to increase HP and performance of an L98; this data shows one of them. It also shows the potential of the TPI system and roughly what gains to expect from some specific mods.
I hope you find it interesting and a useful guide.
Heel & Toe
Joined: Feb 2010
Posts: 15
Likes: 0
From: Shelton Wa
Would you please send me the L-98 info as well? I have a 79 car with a tired L 48, and I also have a "rebuilt" L-98 sitting in the garage on a stand. It has the D port aluminum heads. I have added an isky mega cam, roller rockers with guide plates and some more stuff. I would like to get it together and installed soon, I just need a few little things.... You know. Got a couple extra cm push rods layin around?
Can I use the tpi if I get the brain outta a 86 camaro with the tpi? Would it be worth it? I would otherwise be running a weiand intake with a edlebrock 600. Accel billet dist., headman headers.
Can I use the tpi if I get the brain outta a 86 camaro with the tpi? Would it be worth it? I would otherwise be running a weiand intake with a edlebrock 600. Accel billet dist., headman headers.
