fiddlersport Posted September 8, 2014 Posted September 8, 2014 decent tips for tuning the naturally aspirated 5efhe anyone ? Quote
richardc9052 Posted September 9, 2014 Posted September 9, 2014 ITB's, obx 4 branch, full 2" exhaust, standalone/piggyback ecu and nitrous. Or Turbo, 2.5" exhaust, piggyback/standalone Quote
Sudden Posted October 1, 2014 Posted October 1, 2014 What Richard said. I'm running 4efe pistons and a usdm tercel oem metal headgasket and a skimmed head (2 thou) aswell... Not recommended unless running decent octane fuel. Quote
richardc9052 Posted October 1, 2014 Posted October 1, 2014 Did you ever get it in a set of rollers? Quote
5e colin Posted October 1, 2014 Posted October 1, 2014 just slap a tdo4 on the stock motor and run 10 psi and get a really really good map it will be a rocket Quote
ramses Posted October 1, 2014 Posted October 1, 2014 decent tips for tuning the naturally aspirated 5efhe anyone ? A good intake (itb? like they said here),increase compression close to 12.1, this is what i have done with my 5efhe cynos first before going to turbo Quote
Sudden Posted October 5, 2014 Posted October 5, 2014 Not yet @Richard currently running yamaha fj1100 carburettors and they are old. Experimenting with constant velocity slides for a wider torque curve. My compression is too high to be messing with these carbs much longer. Next step is to finish my new intake adapter for my 03 yamaha R6 itbs and go efi with megasquirt and the 5EFE dis coilpacks. Everything is inplace just need to weld the adapter up, and have the megasquirt wired... And swap in my fuel pump.... And run the efi fuel lines... Sigh Quote
richardc9052 Posted October 5, 2014 Posted October 5, 2014 Nice! I ran triumph tt600 ITB's on a 4e, great sound and awesome throttle response! Quote
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