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Originally posted by caffeine
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Yeah I'm with him. ^11.92 @ 122 MPH 3400 91 Cavalier Z24 Intercooled S/C. -totalled-
10.56 @ 130 MPH 3900 LZ9 87 IROC Z28 Intercooled GT4088 Turbo -
I'd like to see where this goes..."I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."Comment
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Interested as well. 9:1 ish would be great.Comment
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Still working on it.Comment
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A quick update. I'm waiting on pricing. Anyone have an idea of what they are willing to pay for a set of 4340 rods and forged pistons?Comment
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OK so some updates finally. I'm waiting for some pricing back on parts. I've identified a group of pistons and rods that will work with the 3.9L (primarily) and the 3.5L. What I really need to get a feel for is what applications people are looking for.
I can only order one type of rod as they will be custom and the quantity will be high. Pistons are a bit less of an issue since they are pretty standard.
So I need to know what RPM range people want to run, what type of engine (boost or naturally aspirated), HP ranges people might want to run and most importantly compression ratios.
Once I get a better handle on what people want I can finalize the pricing process. So far I can get 8:1 to 14:1 compression depending on the piston and the manufacturer. I'd prefer to narrow this down to maybe 2 compression for naturally aspirated and 2 for boost.
Also how many people are interested in 3.5L pistons and rods?Comment
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3.9
7500 max
boost
9.5 :1
stock bore size11.92 @ 122 MPH 3400 91 Cavalier Z24 Intercooled S/C. -totalled-
10.56 @ 130 MPH 3900 LZ9 87 IROC Z28 Intercooled GT4088 TurboComment
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3500
7500rpm
9:1 compression (boost)
Stock or slight overbore'89 Firebird, 3500 Turbo, T56, 9-bolt/4.11
'86 Fiero, 3500, 4-speedComment
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How much HP are you targeting?Comment
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As much as I can make? My current turbo is supposed to support 650ish I think.'89 Firebird, 3500 Turbo, T56, 9-bolt/4.11
'86 Fiero, 3500, 4-speedComment
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Realistically what car is your engine in? I'd think for most transverse mounted cars 650 is the limit unless you have a very expensive race transmission... for longitudinally mounted the sky is probably the limit....
I figured 650 is the upper range for most people. I'm not sure the 60 degree heads can support more than 700 HP and I think even that is a stretch... but I have no data to say either way. I just haven't heard of anyone making more than 700 HP from one....Comment
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So far there doesn't seem to be as much interest as there was a few months ago.... hopefully we can get some more people to respond.Comment
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89 Firebird/T56'89 Firebird, 3500 Turbo, T56, 9-bolt/4.11
'86 Fiero, 3500, 4-speedComment
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Haha if he's ^ shooting for 650, I'm going to shoot for 675.
87 IROCZ Z28 Turbo350 trans.11.92 @ 122 MPH 3400 91 Cavalier Z24 Intercooled S/C. -totalled-
10.56 @ 130 MPH 3900 LZ9 87 IROC Z28 Intercooled GT4088 TurboComment
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Has anyone ever cracked a block before?
If I'm buying aftermarket rods I might as well push some limits
'89 Firebird, 3500 Turbo, T56, 9-bolt/4.11
'86 Fiero, 3500, 4-speedComment
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