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Milly
08-05-2012, 07:45 PM
Alright so My sr20det is finally running right, not misfiring or anything like that but my idle is a little bit high (shop had to weld a crack in my intake manifold and they "checked timing"...i guess messed with idle to

Anyways it idles right around 1600 rpm's.... Can i just turn down the idle screw or will i need to re-set the timing when i do that?


Also, i ordered a walbro 255, can i install it or do i have to worry about a tune for the larger pump?


Thanks!
Sileighty_85
08-05-2012, 08:25 PM
you can adjust the IACV without messing with the timing

No retune needed for bigger fuel pump.
Milly
08-05-2012, 08:32 PM
you can adjust the IACV without messing with the timing

No retune needed for bigger fuel pump.


Awesome, thanks a ton!:D
Dorifto Machine
08-06-2012, 02:02 PM
Also, i ordered a walbro 255, can i install it or do i have to worry about a tune for the larger pump?


Thanks!

Are you running stock Fuel Pressure Regulator or aftermarket Fuel Pressure Regulator?
booey13
08-06-2012, 03:53 PM
^What he said. Good idea to get an adjustable fpr with a walbro
Milly
08-06-2012, 09:46 PM
its stock....i put it in today before reading.

how much is a decent regulator?
booey13
08-06-2012, 10:00 PM
About a hundred bucks for a decent one. A lot of guys have used stock fpr's with Walbros but I wouldn't.
Sileighty_85
08-07-2012, 05:45 AM
a FPR is not really needed, good to have for tunning purposes.

Wont hurt anything.
Kingtal0n
08-07-2012, 11:25 PM
the oem sr20det regulator is good until around 330rwhp- then you are playing with fire.

cheapest best is nismo, around $80~
StepN2Boost
08-14-2012, 05:27 PM
If you do buy an Fpr, I wouldn't recommend getting a rep. Buy authentic, I made a rookie mistake and purchased a knockoff aeromotive when I made my turbo/fuel upgrade and was having fuel drop problems. Swapped with authentic Aeromotive and problem solved.
project-c2
08-14-2012, 08:09 PM
Did they take off the intake mani to weld? Air leak and they raised idle to hide it. IDK. Sounds fishy that it idles so high then they set timing. Should reshoot timing after lowering idle rpm.

I run a Walbro, didn't change anything. I use a Tomei fpr with Tomei adapter.