performance part ??
Thread Starter
Intermediate
Joined: Feb 2009
Posts: 34
Likes: 0
performance part ??
just wondering how much hp i would gain with a lingenfelter TB, runners, intake top n bottom and long tubes?? someone said thed sell me the whole engine with that set up for 600$ and said id get around 50 hp if i added a fuel pressure regulator with it. any suggestions im trying to get around 350+ hp outta my 85 l98
Race Director
Joined: Jun 1999
Posts: 14,924
Likes: 9
From: Merritt Ils Fl
The heads on the 85 were not one of the Generals crowning achievements. I would be surprised if the heads would allow that much increase. How much you would get? Don't know. No matter what you will get that is a good buy.
Drifting
Joined: Dec 2000
Posts: 1,785
Likes: 91
From: Leander TX
Don't know how much power you would get (maybe 50 crank HP) but I can say the long tubes made a big difference in my 85. It really felt like it reved better and held the power longer in the RPMs. Maybe it was my head but I "felt" the car run better.
The intake on the stock 85 wont do much but is good to have if you get for cheap especially if you ever plan a rebuild or head change. I put a zz4 longblock in with basically the same intake. All mine is edelbrock but they are close enough. Performance is great. Still not a high HP car though but the low end power is great.
Le Mans Master
Joined: Mar 2004
Posts: 5,107
Likes: 171
From: Dublin CA
With a set of AFR heads (180 cc), stock bottom end, SR, 1.6 & 1.6 RR, stock exhaust manifold and pulled the cat and replaced it with a straight thru pipe for the track, 2-1/2" front "Y" pipe and 2-1/4" rear pipe to stock sized mufflers with both outlets working. Had this combo dyno'd. Roughly 350 Hp at the crank and 434 pounds of torque at the crank. All of this was with the stock cam with 230,000 miles on the engine. Long tubes will add more. But you have to dump the stock heads.
Team Owner
Joined: Sep 2001
Posts: 62,160
Likes: 1,733
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
just wondering how much hp i would gain with a lingenfelter TB, runners, intake top n bottom and long tubes?? someone said thed sell me the whole engine with that set up for 600$ and said id get around 50 hp if i added a fuel pressure regulator with it. any suggestions im trying to get around 350+ hp outta my 85 l98
I'm not sure what you mean by lingenfelter runners/intake. Do you mean SuperRam or their modified TPI parts? Either would be a nice addition, but would determine the other mods needed to get to your 350hp goal.
By themselves they will not get there, and your 85 MUST have new heads.
