Driving a JRSC GSR...

SoOperGeeSeR · Post by **SoOperGeeSeR** » Sat Aug 26, 2006 12:32 pm

Got it dyno tuned... 8psi JRSC GSR, s300, rc440's...225/165 to the wheels...yay! ok... any tips on driving this car? i heard SC's run hot...180's to 200's! should i be boosting on the highway? should i give it chances to cool down? or should i just not worry too much... any advice would be appreciated..

VC! · Post by **VC!** » Fri Mar 09, 2007 2:06 pm

SoOperGeeSeR,

You should see temperatures around 30 - 50 degrees cooler than what you posted during steady freeway cruising.

The Hondata Intake Manifold Gasket will help a great deal with that. Hopefully you have one installed. It will definitely make a difference. A 160 degree thermostat is a benefit also.

The JRSC should not have to go into boost on the freeway until you encounter some fairly steep hills, but unless the hills are very long, it will go into boost, and drop back into vacuum as you near the top.

As far as cool down, if you have been running hard, the last five miles from your destination should be easy driving. I'm down here in Georgia so 90 - 100 degree weather all summer long is not unusual.

What header, catalytic converter and exhaust are you using?

Also, who / where did you get your GSR tuned?

Thanks,

Post by **Spunkster** » Fri Mar 09, 2007 4:12 pm

You should not put in a lower temp thermostat. That was what was done in the days before tunable ecus. You should use a standard thermostat. The less restrictive your exhaust system is the better, but you will need to get a slight retune for that as it will greatly affect both boost levels and air fuel ratios. You may want to consider the LHT intercooled manifold as it greatly reduces the intake temps and helps prevent heat soak when used with a Hondata Heatshield gasket.

VC! · Post by **VC!** » Sat Mar 10, 2007 3:35 am

Spunkster,

Thanks for the clarification. Several shops that I spoke with recommended using one, but not all were using Hondata to tune their JRSC equipped Hondas.

After installing a lower temperature thermostat in my B16 Civic Si coupe, I seemed to have lower fuel economy. I partially attributed that to the actions of my right foot!

I have yet to tune my setup with the S300 as I will soon have the JRSC Manifold and S tube ported, along with a altenator stepper pully upgrade.

Other than an AEM Cold Air Intake, Hondata manifold gasket, RC 550cc injectors, GSR cams, DC Sports 4-2-1 exhaut manifold, Random Technology metallic high flow catalytic converter, DC Sports 2.5" exhaust, PLX SM - AFR + DM5 Wideband O2 controller, and a OBD1 Intake Temperature Sensor, is there anything else you would recommend for a strong, reliable daily driven civic?

Apologies to SoOperGeeSeR for taking over your posting!!

Thanks again,

scttydb411 · Post by **scttydb411** » Wed Mar 14, 2007 8:43 pm

i assume you mean the ect temps at 180-200 which will be in the range of your stock thermostat. if it runs hotter than that then get it looked at.

since it's been tuned, drive it like normal unless normal is long highway pulls wot in 5th gear for miles (you'll end up melting valves, pistons, etc).

cool down isn't required, but not a bad idea. drive outside of boosting to your destination for a couple minutes before stopping and turning off and you should be ok.

thething96 · Post by **thething96** » Fri Oct 30, 2009 9:14 am

The IAT's may show 180-200 under boost, but the IAT sensors are known to heat soak. I tuned my JRSC type r at 9psi. it made 243whp on a stock exhaust. Then I changed the crank pulley, and psi went to like 11-12psi. At that point, after the second pass in a dyno, the car would missfire. Not sure if it was the extra psi/heat, but at 9psi, it ran good. So you should be ok. Even though it's tuned, don't go overboard, still drive withing safe standards....