ls1 intake to ls6
Safety Car
Joined: May 2008
Posts: 4,237
Likes: 11
From: Lacombe Louisiana
I am very aware that dollars equal horse power. I may not have made my self clear, I know when you install the exhaust system, cai. intake, tuneup etc. the horsepower is measured, if that is the correct wording, at the rear wheels. But I am looking at increasing the flywheel hp to around 425+. I think the loss at the rear wheels with an automatic transmision is around 15%, is that about right. The 62 hp that I gained in my truck in preparation to race at Ohio last weekend cost a lot more than the work I had done last year. I do know that a head/cam change is very expensive. I thought about trading for an 02 to 05 low mile Z06, but I know my car and how it has been cared for so I decided to improve the performance and handling in stages. How difficult is a rear gear swap in the C5 cars and again what about the BBK intake? Am I way off to expect 75 to 90 flywheel hp increase with: long tube headers, x-pipe and mufflers, throttle body porting, cai, possibly the BBK intake and tune up? The cost for the labor in the area where I live is probably less than for a lot of you, $500.00 for the tune up and $100.00 for the dyno time.
Garrell
Garrell
Racer
Joined: Aug 2011
Posts: 456
Likes: 0
C5 intake
Does anyone know anything about or had any experience with B&B long tube headers and x-pipe? They are built from T-303 stainless steel, unpolished which as crowded as it is in the engine bay you can't see them anyway. They are sold by East Coast Corvette and if there is no problem the sale price is great!
Garrell
Garrell
Racer
Joined: Apr 2008
Posts: 452
Likes: 8
From: Washington DC
Thinking about an intake change like the forum member is doing as one of the modifications I will be doing to my 20,000 mile 98 c5 trying to get the flywheel hp up to 430+ without a cam or head change and no I can't afford a turbo or supercharger. Plans include a Volant duel cone cai system, long tube headers, x-pipe and over the axle pipes and mufflers, throttle body port and a tune up. With the afore mentioned changes what do you estimate my hp would be? What kind of performance can I expect on Paradise Dragstrip a 1/8 mile track with an automatic transmission and the 3:15 rear gear?
Garrell Patterson
Garrell Patterson
Long tubes, high flow cats, no mufflers, mail order tune and Halltech intake.
Results were 342 WHP and 348 Torque. Right about 400 crank. With the other mods you mentioned you should be able to get to your numbers.
Race Director
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
Expect to be able to reach maybe 400hp at the flywheel without going into the engine. There is no way you'll gain 75hp without going into the engine or without using nitrous or forced induction.
Here's good headers, $750 off-road or $900 with cats.
http://forums.corvetteforum.com/c5-p...e-headers.html
Here's good headers, $750 off-road or $900 with cats.
http://forums.corvetteforum.com/c5-p...e-headers.html
Last edited by lionelhutz; May 5, 2012 at 06:43 PM.
