y-man

Providing you lower the compression and keep enough fuel supplied to prevent detonation, is there a boost limit that the Al blocks can hold before you have to switch to an iron block?
Thanks!
Matt

XLR8NSS

iTrader: (4)

I think y2khawk is going to answer this question for us all next spring. <img src="gr_images/icons/wink.gif" border="0"> <img src="gr_grin.gif" border="0">

Check this thread for details. He's a crazy ****. <img src="graemlins/gr_judge.gif" border="0" alt="[judgement]" /> Joe Brown <img src="gr_stretch.gif" border="0">

https://ls1tech.com/ubb/cgi-bin/ulti...&f=20&t=000079

I honestly don't know the answer to this question. I know there are people here that can probably help out though.

[ January 08, 2002: Message edited by: XLR8NSS ]</p>

y2khawk

iTrader: (5)

check back in late march <img src="graemlins/fluffy.gif" border="0" alt="[Fluffy]" />

I've run 13 psi on 10:1 so far. Going to 9:1 this winter, and wanna run ALL the boost next year <img src="gr_grin.gif" border="0">

Y2K_WS6_T/A

[quote]Originally posted by y2khawk:
<strong>wanna run ALL the boost next year <img src="gr_grin.gif" border="0"> </strong><hr></blockquote>

Harlan,

Do you have the GTB-35's or 37's?

MIGHTYMOUSE

iTrader: (59)

rob's first motor rebuild went around 15 psi, but didnt last long before he went to iron

y2khawk

iTrader: (5)

[quote]Originally posted by Y2K_WS6_T/A:
<strong>

Harlan,

Do you have the GTB-35's or 37's?</strong><hr></blockquote>

still got the 35's for now.

I think when the time comes, i may skip the 37's and have them rebuilt elsewhere. So i know exactly what i got.

mike m

iTrader: (6)

hye y2khawk is that a stock bottom end?

y2khawk

iTrader: (5)

completely stock internals on the motor. Bottom end, heads, and cam

10.9 run was on the old intake, dyno numbers on the new intake. No track numbers w/ the new intake

y-man

Harlan-
How have you been able to run that much boost at 10:1 compression? LOTS of Octane???

Nickn20

[quote]Originally posted by y-man:
<strong>Harlan-
How have you been able to run that much boost at 10:1 compression? LOTS of Octane???</strong><hr></blockquote>

yes lots and lots of octane, leaded too <img src="gr_grin.gif" border="0">

y2khawk

iTrader: (5)

[quote]Originally posted by Nickn20:
<strong>

yes lots and lots of octane, leaded too <img src="gr_grin.gif" border="0"> </strong><hr></blockquote>

mucho octane, and very conservative spark advance.

Nick Agostino

I think the question is more power/cylinder pressure than actual boost in the manifold. We have already made 800+rwhp with a re-sleeved aluminum block (custom studs and gaskets) with no signs of failure and know there is more to go. With the right tunning and combo I think that 15+ psi can be attained with the incon or D-1 style charger, the block itself is not the problem but other things like fasteners and gaskets come into play.

I know we have seen around 18psi on the dyno and that was were the issues started to occur. <img src="graemlins/gr_barf.gif" border="0" alt="[barf]" />

Still working on the problem and progressing a bit at a time! Some new tech. coming out soon.

BlownC5

iTrader: (81)

Thanks Nick, I should be o.k. with my measly 5-6psi then <img src="images/icons/rolleyes.gif" border="0"> Good post!


<img src="graemlins/z06.gif" border="0" alt="[Z06 Corvette]" />