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

http://i235.photobucket.com/albums/ee117/TODA_AU/AlexDyno.jpg
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... :p

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/itr_eaton_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.

[dougie_504]

Just curious, got any vids for us?

[BoostnDC2]

Just curious, got any vids for us?
Or engine bay pictures? I would love to see how it looks with a supercharger in there.

[Alexplicit]

for sure, ill get up a video once i fix the driveshaft...

[Touge Tom]

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

Cant remember them. I handed the plates in when the revs expired. 2 years back

[Alexplicit]

perhaps you have a photo of the car with its old plates on it?

[Touge Tom]

Ano70k

[TODA AU]

Ok Tom...

Here's your Power & Torque (130.1kw)

http://www.ozhonda.com/forum/http://i235.photobucket.com/albums/ee117/TODA_AU/IMAG0239.jpghttp://i235.photobucket.com/albums/ee117/TODA_AU/IMAG0239.jpg

Here's your power vs A/F's
You can see you're out of injector at 5500rpm
The car left after that to have bigger injectors fitted & fuel pump + MAP sensor relocated to plenum etc but never returned to have the tune completed. (Instructions to GPC when car was sent back - I can't say if these were ever completed)

http://i235.photobucket.com/albums/ee117/TODA_AU/IMAG0240.jpg

& for you & Alex to bench race,
Here's you vs Alex

http://i235.photobucket.com/albums/ee117/TODA_AU/IMAG0238.jpg

Alex's advantage is MAP sensor reading boost from plenum, rather than the MAP sensor on top of the throttle as is yours.
Bigger injectors & Type R cams.
You have a capacity advantage which can be seen as superior power & torque below 5000rpm.
Alex's cams & compression puch ahead beyond 5500rpm (also with an advantage of correct fueling)
Your car (Tom) also runs higher boost than Alex, but only becasue your cams are smaller & not optimised via adj cam pulleys (9psi vs 6~7psi) which tends to lower the boost shown.

Your Vtec swap is also at 4200rpm

Hope that helps,
Cheers

Adrian

[Touge Tom]

Well the items you mentioned have been fitted for some time now and will bring the car back for calibration. After I get time to fit my big tube header.

[Touge Tom]

Considering the fuel pump,440cc inj and adj-cam gear on the in-cam. What kw and Nm would I possibly get?

[VTec1987]

I want to run 6-7 PSI on my B18CR

What size pulley do i need to get if im running stock Crank pulley?

The pulley that is currently on my S\C is very small....