Do every bolt on you can think of, put in a Crane 227 with 1.6 rockers,
a nice custom exhaust, and you should be in business. And that's with
cats and stock exhaust manifolds.

 

the OBDII => OBDI change has seen 5-7rwhp and comparable torque gain.

 

All of that with a 58mm TB? Do you have LT1 or LT4 heads? Any work done on the heads? Props for the numbers, but be ready for a few questions.

 

If you wanna make 320 rwhp or more on a stock longblock LT1, here is the recipe....

My car made 323 rwhp & 343 rwtq before the Fastchips (Ed Wright) PCM tune. The car makes 330hp / 350hp plus now. I have not had a chance to go to the strip since the car was tuned, but before tuning it went 12.61 @ 108.61 mph. I honestly think the car feels like a 12.40 @ 110 plus now..

 

Sometimes it does, and I've seen others where it made zero difference.

 

yes im sure there isnt a cam in it....althought there will be one in it after this winter

with just an air foil, 1le elbow, obdI conversion, slp headers, dual exhaust, underdrive crank pulley it made 296 hp and 319 trq running really, really rich from a leaking air fitting that was fixed right before the pulls.

i gained a lil over 1 mph with the rrs, and almost 1.5 mph with the csi water pump.

 

Talk about the light at the end of the tunnel for bolt on guys. Now I feel inspired.

-Dustin-

 

so...?

 

I believe they are stock LT1 heads.

Tyler

 

Tunercat.....

 

yep. stock lt1 heads.

we dynoed a friends car with a stock tb and a 58mm tb. he picked up a solid 8-10 hp all the way across the board. i cant remeber what his trq was but he picked up some there too. i also had to buy a new tb so why not buy the biggest one for the same price

 

Your intake manifold is ported. I am sure that had something to do with you hitting 335rwhp. However, I plan on hitting 325rwhp with boltons in the near future. The car was at 12.3 a/f and I still have some bolton's to go.