jrsc with crv pulley

[Alexplicit]

hey guys, i have just got my car tuned with the CRV pulley on, which i was lead to believe would produce 11.1 psi of boost, im only getting 7.

i dont really car about the power im not getting, as i dont need any more lol, just wondering why.

also, because im now over revving my alternator and air con up, last night i think i shagged the air con making really really bad noises now :O is there a way i can toughen the bearings up if i get it rebuilt?

because when i got my alternator rebuilt he "said" he put really good bearings in it, can i do the same for air cons, or are they a disposible unit and you cant fix them?

[Touge Tom]

Just curious what psi would you be getting if you used the b18 pulley? And what diameter is your blower pulley? Mine looks to be 3.8 to 4 inch diameter?

[Touge Tom]

What you making at the wheels?

[Alexplicit]

i havnt even measured it, i think its just the standard size which im pretty sure is 3.8'' diameter, 162.8kw atw at 6psi on a very safe tune.

before i put the crv pulley on it was 4 psi, if your interested i have the whole Jackson Racing Big Boost Kit, including the lightweight crank pulley, boost timing controler, with hand held adjuster, and fuel pressure regulator.

[Touge Tom]

What is the boost pressure difference on low cam to hi cam. For your set up. I got no boost gauge for mine so go no idea. And @ what rpm does you hi cam engage? Mines @ 4500+/-rpm.

[Alexplicit]

about 2 psi drop, 4300 im pretty sure.

[TODA AU]

Alex's before & after power (Before Tuned N/A - After Tuned S/C)
B18C7 + Jackson Racing super charger - 6psi
Toda header + 2.5" exhaust


Dynodynamics Shoot4 - 80 inertia / 100 ramp rate (4th gear run - std DC2R G/B)
ECU - Hondata S200
Vtec cross over - 4200rpm @ 105kpa / 5700rpm @ 55kpa
Adjustable cam pulleys - optimised timing while N/A
There was a run the read 1kw more, but whatever...

Still value in the B, power & torque is on par with a K24 Euro swap with 70mm throttle, RBC, 50deg Vtc & good header & tune.

[Alexplicit]

Thanks Adrian

[Alexplicit]

Would there be any point in redoing cam gears?

[Touge Tom]

most impressive!. i wonder what my b20+p72-S/C would pull? although my ecu has the secret squirrel sticker on it. i assume it has been tuned on toda au's dyno. as I bought the car already with the conversion. and never got a read out with the purchase, would toda au remember, ever tuning a burgundy/maroon integra vti-R from good performance?

[zel05]

Definately suggest putting this question up on Honda-tech forums and seeing what type of responses you get from some of the US guys.

I've got a JRSC kit sitting at home also for the b18cr, with the LHT intercooler, so I have done a little bit of research into the different pulley's and set ups. I've always been under the impression that anything over 7psi without some sort of cooling is not a good idea anyway, so perhaps count yourself lucky?

As for why your not getting the right boost pressure for your pulleys, perhaps have a look at this word doc and enter in a few of your details. http://www.ftlracing.com/media/CALCS...aton_calcs.xls

But you are right, with a crv crank pulley and 3.8 nose pulley you should be getting 11ish psi. Does the bypass valve on the blower have anything to do with boost pressure your getting?

[Alexplicit]

Tom, if you know what the plates where on the car when he tuned it he can bring up what it has.