I've looked around, may over overlooked it but haven't found a thread on stock and modded dyno numbers for the TPI owners. Could we make one to see what people are putting down and with what mods? 305 and 350, list your mods, miles, type of dyno and graph if you have it. I think this could be some valuable information....

I don't have any numbers for mine yet but will soon, just a stock L-98 right now.....

 

Stock peanut cam LB9 with flowmaster catback, descreened MAF, TB airfoil and custom intake in need of a tuneup
165hp 255lb/tq
Here's a video of the first pull

 

Bolt on L98 357" with 305 cam (you'll have to read it all to find out why...) 193 Rwhp 275 Ft/lbs
First run http://www.youtube.com/watch?v=UpaCjW9-Ktw

Same bottom end and bolt ons with a HSR and AFR 180 heads and LPE 211/219 Cam... 330Rwhp 349 Ft/lbs
http://www.youtube.com/watch?v=nATv0SRE5eU
Gained 137 Hp and 74 Ft/lbs!!!
I was happy... but there's more to be had... chip burning as we speak!!!

https://www.thirdgen.org/forums/alte...0-lpe-1-a.html

 

All the info you need is in the link.

https://www.thirdgen.org/forums/tpi/...-stock-vs.html

 

Thats some impressive power! In LS territory with those power levels, that motivates me a little more.. lol

 

bolt on l98 with a cracked engine block 218whp 283wtq... blows up on dyno in result of cracked engine....
http://www.youtube.com/watch?v=Zi0zg...eature=related


i havent dynoed the new combo but it should be close to 300whp and 340-350wtq right now....

 

Thats exactly what I was looking for, thanks!

Like I said in your thread, that blows me away at how much torque these TPI motors make. If we could get them to spin to 6500 while still making power then they would be perfect. So it looks like, from what I've read, its real easy to build a mild 350 with good heads and cam to give a modded LS1 a run for its money. Now I've owned three LS1 cars so I know them very well... but since I have my dream car, a true L-98 IROC-Z... I can't wait to see what I can get out of it.

 

stock long block L98 + HSR intake + 1.6 rockers + underdrive pullies

254whp/315wtq running lean...14 to 1 air fuel I had potential in that setup but still ran 12.95