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View Full Version : What kind of numbers?


micbegz28
06-26-2009, 12:32 PM
hey guys, im goin to be throwing my car on a dyno soon, and i just want to know what numbers i shoudl be expecting w. my current set up

383 stroker lt1
pacesetter headers
magnaflow exhaust
mild cam
msd
k&n cold air

and a few other goodies.
Z28pr0jekt
06-26-2009, 04:07 PM
need to know the specs on the cam and the head specs
micbegz28
06-26-2009, 05:29 PM
stock heads w. LS7 goodies
Z28pr0jekt
06-26-2009, 05:31 PM
And once again you are not giving any help to us figuring out the numbers.. not knowing how big the cam is or if those stock heads are ported or not
micbegz28
06-26-2009, 05:41 PM
heads arent ported. and im not shure about the cam. all i know is that its mild. i baught the car used w. all the stuff. all the work was done at TTP
Z28pr0jekt
06-26-2009, 05:43 PM
No more than 360whp/380wtq IMHO

edit: wait is it an M6 or A4
micbegz28
06-26-2009, 05:48 PM
No more than 360whp/380wtq IMHO

edit: wait is it an M6 or A4

hughes turbo 350
Z28pr0jekt
06-26-2009, 05:49 PM
I'll stick with my original numbers
robmnrd
06-27-2009, 12:41 AM
I probably wouldn't even give it a 360 whp maximum with stock heads...

I dunno if you plan to modify the car anymore than it already has been, but if so do yourself a massive favor and send the heads to either Lloyd Elliot, or Advanced Induction, and get a cam to match from them.
Z28pr0jekt
06-27-2009, 12:48 AM
I probably wouldn't even give it a 360 whp maximum with stock heads...

I dunno if you plan to modify the car anymore than it already has been, but if so do yourself a massive favor and send the heads to either Lloyd Elliot, or Advanced Induction, and get a cam to match from them.

There have been a handful of cam only 350 LT1s that have reached the 350whp mark.

But like I said, without knowing the specs on the cam I wont give it anymore than 360whp
robmnrd
06-27-2009, 12:59 AM
True, but those were usually some really big cams, and a mild cammed 383 will be a stump puller. Especially without heads to match the new cubes.

I'd put my money on an almost stock looking torque curve, and horsepower peaking around 325-350 at around 5000 rpms.

EDIT: Stock looking, but of much higher values. :)

But yes, I'd say 360 is the max he should look for out of his current setup if he were to dyno it.
mpe331lx
06-27-2009, 01:00 AM
stock heads w. LS7 goodies

With a 383?


There have been a handful of cam only 350 LT1s that have reached the 350whp mark.

But like I said, without knowing the specs on the cam I wont give it anymore than 360whp

There have been cam onlys making 360, but bieng a 383 is somwhat going to hurt peak power with stock heads, especially if it is under cammed.

It will probably make great low end torque, but peak power will probably be a couple hundred RPM less then stock:face_shocked:

Port those heads!
MeanGreen94Z
06-28-2009, 10:46 PM
i just built a 396 with ported heads, shaft T&D rockers, full boltons, and a small cam and it only made 436hp/406tq... its in a buddys car, i wasnt really expecting more but to have everything it does its kind of weak IMO... people that do big CI motors and mild heads cam setups are stupid. if your gonna build a mild motor why not build a 355 so it will atleast take RPM a little better... this car ran out of breath and maxed the runners out at 6200 RPM and its built to spin to 7500 atleast :(
robmnrd
06-28-2009, 11:29 PM
Eh, I can see where you're going with that, since they dropped so much cash in they could have simply altered cam specs and picked up plenty, but there are uses for mild/reliable builds. Heck, it's what I'm planning on! Shooting for 360/380 rwhp/rwtq out of an LE H/C/I setup. It'll be capable of way more than that, once I go 383 after I get a better job/a few years of college. But for now, it'll be more than enough.