CTR or ITR pistons in ls block?
I
Joined: Jan 2001
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From: Westside til I die
CTR
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2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
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2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
Team B.O.B.® - Ballaz on a Budget
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From: Orlando
yea man the LS crank is different, 89mm stroke yeilds more CR when fitted with a taller piston dome. the only way to tell if is you clay the motor when you build it if you have enough piston to valve clearance. the valve reliefs on the CTRs are DEEP, they are made for it, also consider the stroke on the B16 is 77.4mm the deckheight on the B18A/B is I believe is the same as the GSR/ITR.
The JDM ITR pistons with the LS crank will give you a good 11.3-11.5:1 at 81.25mm while the CTRs running a higher 12-12.2:1. It all comes down to what you research and do yourself. Thats pretty tall compression my friend, however it may be managable..?! I would invest some time researching the risks running 12:1 on the street.
The JDM ITR pistons with the LS crank will give you a good 11.3-11.5:1 at 81.25mm while the CTRs running a higher 12-12.2:1. It all comes down to what you research and do yourself. Thats pretty tall compression my friend, however it may be managable..?! I would invest some time researching the risks running 12:1 on the street.
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RedUSDM'97TypeR
Engine Swaps, Tech & Tuning
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Dec 31, 2002 07:14 AM