Which is preferred...

[Syncro]

RE: map Converter - When I complained about the pinging they sent me one n/c. JR has always given me good service. I would wait till you install the J&S v.2 and lower your base timing - that might do it.

Hint - turn the Map Limiter knob on the J&S all the way to the right. That seems to richen up the fuel a bit.

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'99 GS-R, JRSC 6 psi, DC 4-2-1 Headers, Type R Cat-Back Exhaust, JR HO Fuel Pump, Cold Plugs, J&S Ultra Safeguard v.2, JR MAP Converter, Cartech fmu, H&R OE Sport Springs, Stock Rims, Michelin Pilot 205/50/15 Tires - Yes, its a SLEEPER!

[A-dub5513]

Know what'cha mean Sil. Throttle response was much, much better and power delivery felt more linear, but didn't run as hard up top.

I originally ran @ 15 degrees for a long while. On dyno day a few months back, they said I was running conservatively. I gave them a heads up that there may still be residule octane booster in the tank. So we all knew that the dyno readings would be a little off. I ended up with about 9 hp increase, BUT with the BTC down 3 clicks and timing up one to 16...that is until my next tank of gas two days later with the mandatory lower octane fuel. So now I'm back where I started.

I'm going to go ahead and try 15 degrees timing with the BTC down a notch...or three, hopefully!

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'99 GSR, JRSC 6 psi., JR HO fuel pump, JR BTC, Cartech FMU, B&M Fuel Riser, RPS Turbo Clutch, 11 lb. lightened GSR flywheel, DC ceramic 4-2-1, Greddy cat-back, DC tower braces front and rear, Skunkworks 22mm rear swaybar, Koni 2-way adjustables, RS*R race springs, (and Octane Booster @ $11 a bottle...aaargh!)

[A-dub5513]

Syncro - I haven't been in contact with JR since the day I drove there for the install. And with my luck, I'd probably have trouble getting their replacement pullies for free!

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'99 GSR, JRSC 6 psi., JR HO fuel pump, JR BTC, Cartech FMU, B&M Fuel Riser, RPS Turbo Clutch, 11 lb. lightened GSR flywheel, DC ceramic 4-2-1, Greddy cat-back, DC tower braces front and rear, Skunkworks 22mm rear swaybar, Koni 2-way adjustables, RS*R race springs, (and Octane Booster @ $11 a bottle...aaargh!)