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***The Official JRSC Thread***

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Old 07-01-2005, 11:19 PM
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Default Re: What JRSC setup are you running? (caranjo)

how much more boost would a lighten b20 crank pulley give on a b series with a 4.0 nose pulley?
Old 07-02-2005, 09:47 PM
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Default Re: What JRSC setup are you running? (hondaeg8)

anyway i could lose power if my timing was set too far back?

any help on where my fuel pressure should be at idle?

gsr motor, p n p head, 3 angle valve job , jrsc with 6psi pulley, timing at 12-13 degrees.

car seems to hesitate a little when just cruising and hitting about 4500 rpms. but if i give a little more throttle in the same rpm range, it does just fine.
Old 07-02-2005, 09:57 PM
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Default Re: What JRSC setup are you running? (hondaeg8)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaeg8 &raquo;</TD></TR><TR><TD CLASS="quote">anyway i could lose power if my timing was set too far back?

any help on where my fuel pressure should be at idle?

gsr motor, p n p head, 3 angle valve job , jrsc with 6psi pulley, timing at 12-13 degrees.

car seems to hesitate a little when just cruising and hitting about 4500 rpms. but if i give a little more throttle in the same rpm range, it does just fine. </TD></TR></TABLE>

hmm, maybe it's time to think about getting it tuned for real
Old 07-03-2005, 02:47 PM
  #329  
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Anyone know where I can get a regular pulley for a 98 gsr jrsc used for cheap, I have this damn 11 psi one and thats more than I want to have...

Someone must have one and a belt around from an upgrade...
Old 07-03-2005, 03:11 PM
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Default Re: (8k-red-DC2)

damn.. only if you had the 10psi one, i would trade you.
Old 07-03-2005, 05:47 PM
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I mean maybe it is the 10 psi... I just know that my tuner told me it was pulling 11 ish on the dyno (this is what the aem ems was showing, in the 10-11 psi range) and I thought it was supposed to be an 8-9 psi endyn stepper....

Is the number for the pulley the diameter?
Old 07-03-2005, 11:46 PM
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Default Re: (8k-red-DC2)

nah.. don't want to chance it. just want to push 9-10psi
Old 07-06-2005, 12:40 AM
  #333  
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Default Re: (hondaeg8)

man... JR wants 180.00 just for the crank pulley to run 8psi
Old 07-07-2005, 11:03 PM
  #334  
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Default Re: (hondaeg8)

i think i should be getting a B20 crank pulley.

anyway to determine if its really a B20 crank pulley by looking at it?
Old 07-08-2005, 04:36 AM
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Default Re: (hondaeg8)

We have a couple of used Unothadox crank pulleys for superchargers. Pm me.
Old 07-08-2005, 06:11 PM
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Default Re: (CRVRX)

Anyone have experience with running a btc and a cartech FMU with no problems or is a standalone ECU the only way to go?
Old 07-08-2005, 06:20 PM
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Default Re: (CRVRX)

pm sent about the pulley.

i want to run 8-9psi... anyone help me out??

i'm currently running 6psi
Old 07-08-2005, 06:24 PM
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just buy my pulley
Old 07-08-2005, 06:25 PM
  #339  
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Default Re: (Tad)

i would, but i don't want to take the blower off to install it. it would be easier just to change out the crank pulley.
Old 07-08-2005, 06:26 PM
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Default Re: (BlackSage)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlackSage &raquo;</TD></TR><TR><TD CLASS="quote">Anyone have experience with running a btc and a cartech FMU with no problems or is a standalone ECU the only way to go?</TD></TR></TABLE>

FMU and BTC worked fine for me up to 6 PSI, higher than that and you get busted pistons.
Old 07-08-2005, 06:28 PM
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Default Re: (rmcdaniels)

hmmmmmmmmmmm

the fmu and timing retarded 3 degrees on my ls motor did fine at 8psi
Old 07-08-2005, 06:35 PM
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Default Re: (hondaeg8)

yeh imo u dont really need the btc at only 6psi
and at 8psi with the btc u should be ok

i'd still rather get tuned though..
cuz **** having fuel management thats all hooked up with wires and tubes..
what happens when something breaks or comes loose???

best to have your actual fuel/spark tuned right to begin with.
Old 07-08-2005, 08:12 PM
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Default Re: (Tad)

I thought i could take it to a shop to have the FMU tuned. Maybe even the BTC because it is somewheat adjustable right?
Old 07-08-2005, 08:17 PM
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The BTC is adjustable, and I've heard the BEGI/Cartech FMU's are adjustable, I just never tried it.
Old 07-08-2005, 08:23 PM
  #345  
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Default Re: (rmcdaniels)

Hey you guys are a lot of help. Why dont I just run my set-up past you guys and you guys let me know if it is safe for 6psi. I plan to do the install myself and then take it to a dyno to get the BTC and the FMU slightly adjusted. Let me know if it is overkill.

JRSC
Spark Plugs
Fuel Pump
Cartech FMU
JR BTC
Fuel filter
JR Map Controller
Comptech intake
F/P Gauge
Gauge Pod
Boost Gauge
Old 07-08-2005, 08:26 PM
  #346  
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Default Re: (8k-red-DC2)

nah.. you should be good to go.


Old 07-08-2005, 08:31 PM
  #347  
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Default Re: (BlackSage)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlackSage &raquo;</TD></TR><TR><TD CLASS="quote">I thought i could take it to a shop to have the FMU tuned. Maybe even the BTC because it is somewheat adjustable right?</TD></TR></TABLE>

eeehhh I wouldn't call that tuning,
but adjusting the btc and cartech fmu on the dyno would be the best way to do it.

the stock JR fmu isn't adjustable for how much fuel it puts in,
but rather when.. kinda wierd.. i'd rather leave it stock.
Old 07-08-2005, 10:46 PM
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Default Re: (Tad)

just run with the JR fmu and forget the BTC........ IMO
Old 07-08-2005, 10:52 PM
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Default Re: (8k-red-DC2)

would a lighten B20 crank pulley net you more boost than a stock b20 crank pulley?

i would assume so, but just want to double check.
Old 07-08-2005, 11:00 PM
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Default Re: (hondaeg8)

no man,
the only thing that affects boost is the diameter of the pulley
a lightened one just weighs less...

although most lw cranks are also underdrive ones, which means their dia is smaller..
thus LESS boost.


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