Hey guys I finally got my engine dyno'd yesterday. The engine is a L98 with comp cam, dart heads, and HSR. Lemme know what you think.



404ft-lbs torque and 407hp.

 

if u dont mind me asking, what size heads are u running and what are the specs...im goin to a similar sedt up w/ zzx cam w/1.6 rr and iron eagle heads 200cc...
thanx

dave

 

same heads.

 

thats a motor dyno right? not rear wheels?


anyway what are the specs on the cam... those numbers look really good. flat torque curve too.. Any reason why the pull stopped at 5750 rpms? looks liek its about to peak at 6000, and stay abit flat

 

Dammmnnn. I'm about to put new heads on my HSR 355 and that looks like an awesome setup. 400 hp and tq, that's very nice! Anyway, are those the 49cc combustion chamber heads?

 

ya its on an engine dyno. It took us the whole day to get the F.A.S.T. system setup and running correctly and we didn't have time to make the pull past 6k. I'm sure there is still some horsepower left and the 407 was running a little bit rich still and we fixed that. So i'm sure its more like 415-420 hp upwards toward 6000rpm. The cam is the 276xr cam the specs are 282adv dur, .502 .510 lift on a 110 centerline.

The heads have 64cc combustion chambers.

 

Rats, summit has 200cc intake/ 49cc combustion chamber assembled Dart heads for $225 each. A little too good if those were the same ones.

 

What? where? I have never even seen bare castings for that much. and the only 49cc chambers I see are 180cc intake and bare they cost 657 a pair

 

Where did you do dyno it at? Ive got a similar setup im about to drop in right now.

-350 Block
-Iron Eagle Platinum Series heads 200cc/64cc
-HSR
-Lunati Voodoo 268 cam .521/.537 110 LSA after 1.6 rr's not sure on duration after 1.6's but with 1.5's its 227/233 @.050
-1.6 harland sharp rockers
-Hedman Longtubes

Im hoping for similar numbers. Youve given me hope for breaking the 400fwhp barrier

 

I have the same setup pretty much cept my cam is different and I have 1.5RRs. My buddies boss has a dyno at his house and we did it there. I honestly didn't think it would break the 400 barrier because so many people played me down on here. So to all of them!!!!

 

Great numbers. What compression are you running if you don't me asking.

 

a little over 10:1

 

fwhp huh? dropin that in a honda or something

 

We're talking flywheel horsepower not front wheel ricepower

 

Summit does have them for $226 each, but they are bare heads.

 

i would have said that combo would be good for near 400hp on motor.. i would have been about right.

i'm goin the next sized cam up, and 383 inches.. should be 450hp easy LOL

 

All I know is there was a bunch of people that told me it wouldn't make more than 380hp so to them!

Oh and I think about mid summer i'm gonna throw a 100hp wet shot up on it for ****s and giggles.

 

I just put in your engine into my dyno desktop and made 417 hp and 435 ft lbs with small tube headers, mufflers, 6 degree of timing. Of course, I don't have the correct flow numbers but I got them close.