Double check my top end build
Thread Starter
Intermediate
Joined: Nov 2005
Posts: 29
Likes: 0
Double check my top end build
First car is 91 stock L98 that I use to autocross and track day 95%.
I just want to make sure that I'm not missing something before I order parts. Car only has 65,000 miles plan to leave bottom end alone. I know that not doing headers will leave some on the table but are a simple add down the road. I know I will need a custom tune.
Afr 180 23 65 cc heads
Comp cam 12-268-4 xfi
Holley stealth ram stock throttle body (see hood in sig)
30 lb injectors
catless exhaust with corsa cat back system
new 1.5 rockers
Thanks Jake
I just want to make sure that I'm not missing something before I order parts. Car only has 65,000 miles plan to leave bottom end alone. I know that not doing headers will leave some on the table but are a simple add down the road. I know I will need a custom tune.
Afr 180 23 65 cc heads
Comp cam 12-268-4 xfi
Holley stealth ram stock throttle body (see hood in sig)
30 lb injectors
catless exhaust with corsa cat back system
new 1.5 rockers
Thanks Jake
Safety Car
Joined: Apr 2005
Posts: 3,624
Likes: 431
From: Dale City VA
First car is 91 stock L98 that I use to autocross and track day 95%.
I just want to make sure that I'm not missing something before I order parts. Car only has 65,000 miles plan to leave bottom end alone. I know that not doing headers will leave some on the table but are a simple add down the road. I know I will need a custom tune.
Afr 180 23 65 cc heads
Comp cam 12-268-4 xfi
Holley stealth ram stock throttle body (see hood in sig)
30 lb injectors
catless exhaust with corsa cat back system
new 1.5 rockers
Thanks Jake
I just want to make sure that I'm not missing something before I order parts. Car only has 65,000 miles plan to leave bottom end alone. I know that not doing headers will leave some on the table but are a simple add down the road. I know I will need a custom tune.
Afr 180 23 65 cc heads
Comp cam 12-268-4 xfi
Holley stealth ram stock throttle body (see hood in sig)
30 lb injectors
catless exhaust with corsa cat back system
new 1.5 rockers
Thanks Jake
Stock 113's are 58cc.
Will
Pro
Joined: Feb 2005
Posts: 658
Likes: 1
From: Centerville OH
You may want to consider having the heads milled 0.030" (reduces chamber volume 1cc per 0.006") to get a 60 cc chamber and then run a .039" or less head gasket thickness to get the compression ratio at or a little above stock.Sounds like a good initial plan. You may also want to think about upgrading the exhaust to full duals when you eventually do the headers.
