Made +41 rwhp from heads and NW 102mm TB

[acammer]

Originally Posted by Chris49066SS

GPI has done it again! Got my numbers from Ben at GPI today, and picked up 41.3 rwhp at 7600 rpm, and 14 ft lbs of torque. These were my stock heads with GPIs porting and swapping to LS3 hollow stem intake valves, stock TB to the Nick Williams 102mm that matches the LOD intake snout, PAC .700 springs, and FIC 850cc injectors. I am ecstatic over the numbers so far and can't wait to pick it up and see how it feels!

Great results dude! Like somebody else mentioned, the porting really shines in those upper RPM ranges where you need every bit of airflow you can get. The LOD sure likes to RPM, I'm confident that it'll make power to 8500rpm with the valve-train to go there!

Like you mentioned below, you probably could benefit from a restall on the converter. You're not working with a surplus of torque, and lifting the car further into the rev range off the line would only benefit it. However, with your plans to add a TH400 and boost, it's probably not something I'd go through the trouble of, unless you're looking for that last tenth or so in the 60'.

[Chris49066SS]

Originally Posted by acammer

Great results dude! Like somebody else mentioned, the porting really shines in those upper RPM ranges where you need every bit of airflow you can get. The LOD sure likes to RPM, I'm confident that it'll make power to 8500rpm with the valve-train to go there!

Like you mentioned below, you probably could benefit from a restall on the converter. You're not working with a surplus of torque, and lifting the car further into the rev range off the line would only benefit it. However, with your plans to add a TH400 and boost, it's probably not something I'd go through the trouble of, unless you're looking for that last tenth or so in the 60'.

Thanks Andrew, and for your's and the rest of the crew at GPI for your build advice!

[IWANTA(ss)]

Originally Posted by Chris49066SS

Nice. Whats your SCR? They asked if I wanted them to mill but I said no. Want to stay and not go any higher than 11:1 for Prochargers sake

12.1 still running 93 it’s Daily after all lol. I’m not going to go FI I think I’m going 416 next with what ever kind of cam GoatPI tells me to buy.

Got my tracking number for the heads this morning I’m pumped.

[WHAMMO]

Originally Posted by Chris49066SS

Thanks Whammo! Kinda wishin I had went with a cam like yours right now though!

LOL yeah but you would need steep gears too. My car is going no where fast in the 1/4 with the current trans/gear combo(1LE).



I am installing a RPS alum twin. I hope the car will perform better. The small clutch was great (Spec Mini Twin) but their slave cyl is absolute shitt; it failed for the 5th time, and the last time. Back to stock slave cyl and RPS now.


I am thinking the car slave was spraying clutch fluid on the flywheel at high rpm cause the car did not felt right in 3rd and over 6800, but it was an animal in 2nd gear all the way to 7900. The old clutch was done too, and there was evidence of fluid spilled everyfukingwhere