I still think an engine should achieve the 1hp per cubic inch mark.

I realize it seems difficult to acheive that with TPI, but what do ya'll think a reasonable plan is?

Not counting NOS, superchargers, or turbochargers.

Some thing are obvious, like headers, high flow cat/muffler, CAI.

 

Decent heads, cam, headers, modified TPI or other intake (SR, HSR, MiniRam, LT1), and tuning. I hit 290 rwhp with TF heads, LT4 HOT cam, ported SLP runners and Edelbrock base, Hooker shorty headers, and home-burned chip, plus the usual free/cheap mods. This is about 365 engine hp assuming 20% loss through the auto tranny. Everything I've done is at: IROC

 

I am hoping for some simliar power #'s. Planning on AFR 180's/ LPE 219/ SLP runners ported and ported/siamesed base. (maybe some plenum work as well) Full exhaust, custom tune. Hoping to have the ZZ4 block by spring

 

At 150k miles, and, while there is no smoke of any kind, I have to add about 1 liter of water every two or three days, but there is never a puddle under my car.

 

Hmm 290 you say eh? Well I doubt I'll make that but I do have a somewhat of a "good" setup no?

355cu. - Brand new shortblock with hyperutectic flattops
Ported 081 heads - bowl work, new valves/back cut, port work
Matched TPI base
Ported Plenum - runner and tb openings
stock runners - might have edelbrock siamesed soon
stock TB with air foil
CAI
Full msd ignition
Full exhaust - headers, hi flow cat, single exit with Bullet muffler
AFPR set at 48psi
22lbs injectors
1.6 roller rockers
981 springs
LT1 cam - .477/.489 w/ 1.6

Any thoughts on the power here?

 

Quite a few people on this board are making more than 350HP at the motor with TPI. Heck I figure I'm around the 400hp mark as are some others. Good heads are the key and the supporting bolt ons.