Quick recap:
418 ci
TFS 235cc
248/254 .622/.622 108LSA
Kenne Bell 2.8
Meth injection for safety
The car is pullied for 13 pounds, but my NA cam is bleeding some boost. The car has since been dropped off to get a blower cam and raise boost to 16 psi.
Thats way low for that setup, especially for those cubes and that boost. How much timing is in it? Whats the compression ratio?
Thats not right at all. Considering your running on a dynojet, you should be MUCH closer if not over 700hp with that. Not trying to bust your bubble but somthing not right. Sure Jeff will step in.
We went over 700 with a crap cam on a 364 with the 2.6 unit on 93 with Meth, that was on a mustang dyno. Now granted that was on 13psi, not 8. But you have alot more cubes. There is ALOT left in that thing! Even if that is the one load cell dyno dynojet makes, that number is still very low or tune ULTRA conservatively.
Last edited by breecher_7; 06-12-2009 at 08:00 AM.
Thats way low for that setup, especially for those cubes and that boost. How much timing is in it? Whats the compression ratio?
Thats not right at all. Considering your running on a dynojet, you should be MUCH closer if not over 700hp with that. Not trying to bust your bubble but somthing not right. Sure Jeff will step in.
We went over 700 with a crap cam on a 364 with the 2.6 unit on 93 with Meth, that was on a mustang dyno. Now granted that was on 13psi, not 8. But you have alot more cubes. There is ALOT left in that thing! Even if that is the one load cell dyno dynojet makes, that number is still very low or tune ULTRA conservatively.
Its the cam, jeff saw his combo before and agreed. Thats a big cam for a n/a 418 let alone a blown one and on a 108 lsa i can see what its not making much power it could be bleeding off nearly 7-8 psi off boost
With the proper blower cam, I could definitely see it picking up a bit across the powerband.
For sure.
Quote:
Originally Posted by breecher_7
Thats way low for that setup, especially for those cubes and that boost. How much timing is in it? Whats the compression ratio?
Thats not right at all. Considering your running on a dynojet, you should be MUCH closer if not over 700hp with that. Not trying to bust your bubble but somthing not right. Sure Jeff will step in.
We went over 700 with a crap cam on a 364 with the 2.6 unit on 93 with Meth, that was on a mustang dyno. Now granted that was on 13psi, not 8. But you have alot more cubes. There is ALOT left in that thing! Even if that is the one load cell dyno dynojet makes, that number is still very low or tune ULTRA conservatively.
It's the cam.
Quote:
Originally Posted by stainless40cal
Its the cam, jeff saw his combo before and agreed. Thats a big cam for a n/a 418 let alone a blown one and on a 108 lsa i can see what its not making much power it could be bleeding off nearly 7-8 psi off boost
I had that cam spec'd out for when I had my super vic intake setup. It's bleeding alot of boost.
Quote:
Originally Posted by slothy
108....i wanna see a video of this idle'n! lol
Watch the dyno vid up top. Got a nice idle too it.
I'm not sure about the SAE numbers. At the time I just wanted to get the car running so I could start working out the bugs. I wasn't really worried about numbers. More worried about my butt dyno. It was feeling awesome, but now i'm back in Afghanistan. Most of the bugs are worked out now. Like the rocker arm bolts that snapped on my new heads. Now, all i can do is wait for the new cam and pulley to get put on.
I can give you the run conditions, but that's the best i can do:
98.13 F, 29.03 in-Hg, Humidity 35%, Std 1.07
You will be more than happy soon enough man when you get that new cam in, up the boost, and get a good tune in her she will be
Its not only the cam, but 8psi on a 2.8H is WAYYYY to low. The absolute minimum allowable boost on a 2.8H is right about 13psi.
Along with that 418" motor, that thing is just swallowing up the boost. Turn the wick up, and you will make more power.
Also, watch the vacuum in that inlet when you turn the boost up.
I think he said it was pullied to make 13 but only makes 8. I would think the blower should be in its efficiency range with a 13lb pulley. Sounds like the cam is bleeding off the boost.
I think he said it was pullied to make 13 but only makes 8. I would think the blower should be in its efficiency range with a 13lb pulley. Sounds like the cam is bleeding off the boost.
I was drooling over your car the other day! Mine is there getting some work done as well.
The dyno they have is known for low numbers. I know plenty of them say that but I saw it with my own eyes. A friends car put down 396 on a Mustang dyno literally right down the road and took it over and only made 398.
Corvette Store
My Kenne Bell results
it could be bleeding off nearly 7-8 psi off boost 
'98 LS1 Vette-Email 
