AES 408 / GT-88 / AFR 225's 1113rwhp 1219rwtq E85
09-02-2011, 10:23 AM
#27
Are you concerned about the heads lifting at the track?
Is that a load bearing dyno? Reason I ask and I'm sure you are well aware, is that in 3rd gear running out the back is a lot more load on those 4 bolt heads than for 1.5 seconds on the dyno. I guess we will see how good those ls9 gaskets are!
Is that a load bearing dyno? Reason I ask and I'm sure you are well aware, is that in 3rd gear running out the back is a lot more load on those 4 bolt heads than for 1.5 seconds on the dyno. I guess we will see how good those ls9 gaskets are!
09-02-2011, 10:32 AM
#29
Are you concerned about the heads lifting at the track?
Is that a load bearing dyno? Reason I ask and I'm sure you are well aware, is that in 3rd gear running out the back is a lot more load on those 4 bolt heads than for 1.5 seconds on the dyno. I guess we will see how good those ls9 gaskets are!
Is that a load bearing dyno? Reason I ask and I'm sure you are well aware, is that in 3rd gear running out the back is a lot more load on those 4 bolt heads than for 1.5 seconds on the dyno. I guess we will see how good those ls9 gaskets are!
09-02-2011, 01:53 PM
#35
So what makes the LS9 head gaskets so much better? Material? Design? Thickness? Did GM just spend tons of R&D on making a OEM gasket that will handle boost and cylinder head to deck surface sealing on an OEM application since they finally built a sports car with boost?
I guess they figured they could/would run into these problems at oem power levels so they designed a gasket that could handle it without using 6 bolts per cylinder head to seal the head to the deck surface.
I guess they figured they could/would run into these problems at oem power levels so they designed a gasket that could handle it without using 6 bolts per cylinder head to seal the head to the deck surface.
09-02-2011, 03:08 PM
#36
I'd say you are pretty much done with that fuel set-up. On the set-up below, I made 810rwhp on a 98 degree day with 21lbs peak boost flattening out to 19lbs. We had to stop bc we were out of pump. My question is what your timing map looked like across your RPM's. I'm running 14* max with my set-up. I know with race gas that if you try to run low timing, you won't see any kind of staggering results because all of the power is in the added timing. I'm wondering if ethanol is the same way since it has the higher octane. I can't push my set-up any further without adding a third intank pump or inline pump but my turbo is maxed at 900rwhp anyway and I'm not trying to push the envelope. I'm just wonwondering if pushing the timing to 18 or 20* on my little 365 would allow me to hit 800rwhp on 17lbs instead of 21lbs (I need to iron out the peak boost issue.)
365LS2
Billet Precision T76GTS
E85
2 Walbro High pressure 255's
100# Injectors- boost referenced
#8 line
LS6 heads wLS9 Gaskets
224/224 .588/.588 114LSA cam
365LS2
Billet Precision T76GTS
E85
2 Walbro High pressure 255's
100# Injectors- boost referenced
#8 line
LS6 heads wLS9 Gaskets
224/224 .588/.588 114LSA cam
09-02-2011, 05:10 PM
#38
I'd say you are pretty much done with that fuel set-up. On the set-up below, I made 810rwhp on a 98 degree day with 21lbs peak boost flattening out to 19lbs. We had to stop bc we were out of pump. My question is what your timing map looked like across your RPM's. I'm running 14* max with my set-up. I know with race gas that if you try to run low timing, you won't see any kind of staggering results because all of the power is in the added timing. I'm wondering if ethanol is the same way since it has the higher octane. I can't push my set-up any further without adding a third intank pump or inline pump but my turbo is maxed at 900rwhp anyway and I'm not trying to push the envelope. I'm just wonwondering if pushing the timing to 18 or 20* on my little 365 would allow me to hit 800rwhp on 17lbs instead of 21lbs (I need to iron out the peak boost issue.)
365LS2
Billet Precision T76GTS
E85
2 Walbro High pressure 255's
100# Injectors- boost referenced
#8 line
LS6 heads wLS9 Gaskets
224/224 .588/.588 114LSA cam
365LS2
Billet Precision T76GTS
E85
2 Walbro High pressure 255's
100# Injectors- boost referenced
#8 line
LS6 heads wLS9 Gaskets
224/224 .588/.588 114LSA cam
