Boost limit for Al block?
Thread Starter
Staging Lane
Joined: Nov 2001
Posts: 60
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From: Saginaw, TX
Boost limit for Al block? 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
Thanks!
Matt
Adkoonerstrator
iTrader: (4)
Joined: Nov 2001
Posts: 21,420
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From: Deep in the seedy underworld of Koonerville
Re: Boost limit for Al block? 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>
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>
Re: Boost limit for Al block? 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">
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">
TECH Enthusiast
Joined: Nov 2001
Posts: 666
Likes: 0
From: Richardson, TX, USA
Re: Boost limit for Al block? [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?
<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?
Re: Boost limit for Al block? [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.
<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.
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9 Second Club
Joined: Nov 2001
Posts: 1,445
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From: Bay Area, CA
Re: Boost limit for Al block? [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">
<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">
Re: Boost limit for Al block? [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.
<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.
Launching!
Joined: Jan 2002
Posts: 252
Likes: 0
From: ONTARIO/CANADA
Re: Boost limit for Al block? 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.
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.
Re: Boost limit for Al block? 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]" />
<img src="graemlins/z06.gif" border="0" alt="[Z06 Corvette]" />