urgent building L94 trying to find aftermarket rods and compression calc parts compat
11-28-2020, 05:33 PM
#1
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urgent building L94 trying to find aftermarket rods and compression calc parts compat I have summit pistons https://www.summitracing.com/parts/sum-3269434065-2
I posted this question on summit racing.
I found these
CSC6100DS6A2AH Callies 6.100 .943 pin h beam
Q:
A:You need to buy another Gen IV set of connecting rods. They are good for 800-1000hp. Just keep tuning correct and joy.
JOHN from TX answered on November 21, 2020
I am also trying to keep compression under 11
Plus if I am going to run N/a for a year then turbo it i might as well buy upgraded rods.
does this look correct for compression calculation?
https://imgur.com/a/1bUXsrQ
I'm really close to summit racing return window of 90 days in case I have to swap pistons out.
I am unable to find recommended piston pin clearance for a time attack/ drift car. I'd rather buy something once and pay to have the bushings clearances bored. from what I can tell it would still be a recommended .001 -.0015 max for the pin clearances
I posted this question on summit racing.
I found these
CSC6100DS6A2AH Callies 6.100 .943 pin h beam
Q:
Is there any aftermarket rods that work with these? My factory ones are out of spec now after arp's. and can't find any ok quality + .002 bearings made anymore.
Asked by DAN on November 21, 2020A:You need to buy another Gen IV set of connecting rods. They are good for 800-1000hp. Just keep tuning correct and joy.
JOHN from TX answered on November 21, 2020
I am also trying to keep compression under 11
Plus if I am going to run N/a for a year then turbo it i might as well buy upgraded rods.
does this look correct for compression calculation?
https://imgur.com/a/1bUXsrQ
I'm really close to summit racing return window of 90 days in case I have to swap pistons out.
I am unable to find recommended piston pin clearance for a time attack/ drift car. I'd rather buy something once and pay to have the bushings clearances bored. from what I can tell it would still be a recommended .001 -.0015 max for the pin clearances
Last edited by kaaoszx; 11-29-2020 at 12:51 PM.
11-29-2020, 07:58 AM
#2
There are plenty of options. Eagle has a cheap 6.100” length I Beam rod for a .943” pin (PN SIR6100NLW) for example. If you want to use a .945” pin, it should be okay to hone the piston pin bores that much when you’re having them pin fit anyways. If you can swap out pistons, it’s probably better to use a 6.125” rod with a smaller .927” pin though.