Horsepower for a L98 engine
04-01-2003, 05:02 PM
#22
Race Director
Re: Horsepower for a L98 engine (Professor)
port your heads and add a cam w/headers, then upgrade your intake/runners and port your plenum later when you can afford it.
04-01-2003, 05:59 PM
#24
Team Owner
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]
04-01-2003, 06:02 PM
#25
Le Mans Master
Member Since: Jan 2002
Location: Kyle TX (Because Mojo Made me fill it in)
Posts: 5,320
Likes: 0
Received 3 Likes
on
3 Posts
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]
04-01-2003, 09:06 PM
#26
Drifting
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
04-01-2003, 11:59 PM
#30
Melting Slicks
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?
04-02-2003, 03:43 AM
#32
Team Owner
Member Since: Dec 2000
Location: SE NY
Posts: 90,675
Likes: 0
Received 300 Likes
on
274 Posts
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.
04-02-2003, 12:01 PM
#33
Le Mans Master
Member Since: Apr 2000
Location: DrunkDefender
Posts: 5,589
Likes: 0
Received 0 Likes
on
0 Posts
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.
04-02-2003, 01:11 PM
#34
Team Owner
Member Since: Dec 2000
Location: SE NY
Posts: 90,675
Likes: 0
Received 300 Likes
on
274 Posts
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.
06-14-2010, 05:37 AM
#35
Heel & Toe
Member Since: Feb 2010
Location: Shelton Wa
Posts: 15
Likes: 0
Received 0 Likes
on
0 Posts
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.
06-14-2010, 08:16 AM
#36
Team Owner
Member Since: Oct 2004
Location: altered state
Posts: 81,242
Received 3,043 Likes
on
2,602 Posts
St. Jude Donor '05
Click
on 65z01's username to get to the site
on 65z01's username to get to the site
06-14-2010, 03:38 PM
#40
Race Director
This thread's got spiderwebs and dust all over it.