JDM ITR JRSC ruff idle with constant backfire, HELP!!!

JDC2TypeR · Post by **JDC2TypeR** » Tue Apr 15, 2008 3:02 pm

I install a JRSC with Hondata S300. In order for my engine to start I had to give it gas while I start it. when the engine starts it idles really ruff, shaking the motor back and forth constantly with backfire then it dies after 10 to 15 seconds. Can it be that my timing is off or the ITR JRSC calibration is corrupted? I notice the injector size is 510cc in the calibraiton, is there a reason why it's 510cc? I change it to 440cc and it's still don't make any difference. any help will be greatly appreciated.

Here is what I have installed for my setup

JRSC ITR supercharger
JRSC air intake
JRSC high flow cat
JRSC low temp thermostat
Mugen low temp switch fan sensor
Koyo Racing radiator
Kamekaze headers
Apexi GT catback exhaust system
Hondata intake manifold gasket
Hondata S300 running B18c5 supercharger 12 ohm calibration downloaded from hondata calibration forum.
AEM high flow fuel rail
AEM fuel pressure regulator
Walbro 255 fuel pump
B&M fuel pressure gauge
RC 440 cc injectors
NGK iridium spark plugs
Royal Purple 10w30 motor oil
Innovative wide band o2 sensor

VC! · Post by **VC!** » Thu Apr 17, 2008 1:25 pm

JDC2TypeR,

Here is a copy of the tune that I have on a B16A2 motor with a JRSC. It (hopefully) will run well enough for you to get to a dyno tuning session.

JDC2TypeR · Post by **JDC2TypeR** » Thu Apr 17, 2008 9:23 pm

thanks VC, but i don't need it anymore. i went back and double check everything and it was my spark plug wires that was routed to the wrong plug on the distributor, dang i feel so stupid. it's working fine now. can i contact you in the future for any questions about jrsc ?'s ?

VC! · Post by **VC!** » Fri Apr 18, 2008 6:11 am

Sure. I'm not the Subject Matter Expert, but I will help when I can!

JDC2TypeR · Post by **JDC2TypeR** » Sun Apr 20, 2008 8:11 pm

vc,
can you go on my other forum under hondata application and read my post on s300 install for jrsc map relocator?

thanks vc

VC! · Post by **VC!** » Mon Apr 21, 2008 6:49 am

I have viewed your other post and submitted a reply.

JDC2TypeR · Post by **JDC2TypeR** » Wed Apr 30, 2008 11:21 am

VC i just bought a crv crank pulley, do you know if i will need the jrsc crank to altinator boost belt?

VC! · Post by **VC!** » Wed Apr 30, 2008 12:23 pm

You'll need a different belt. When I get off from work, I can look on my computer and give you the size.

VC! · Post by **VC!** » Wed Apr 30, 2008 12:58 pm

The belt size you will need is 40340, compared to the SIR / GSR / ITR pulley which requires a belt size of 40315.

JDC2TypeR · Post by **JDC2TypeR** » Wed Apr 30, 2008 8:00 pm

VC! wrote:The belt size you will need is 40340, compared to the SIR / GSR / ITR pulley which requires a belt size of 40315.

thanks VC, once again your the man!!!

VC! · Post by **VC!** » Thu May 01, 2008 6:01 am

No problem! Glad I could help.

JDM ITR JRSC ruff idle with constant backfire, HELP!!!

JDM ITR JRSC ruff idle with constant backfire, HELP!!!

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