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How Much Boost is your JRSC Making

2.1K views 27 replies 10 participants last post by  fruitport_focus  
#1 ·
I want more boost and i just wanted to know what you guys are cranking.
 
#2 ·
As close as I can tell it's as advertised with 5lb or at least close to it according to my Autometer guage.
 
#6 ·
well it depends how much boost do you want to run?

if you're doing like 5 now and just want to do like 8you can do that by just chaning the crank pulley...if you want to do more, you'd need a bigger crank/smaller s/c pulley...there's a mustang pulley company doing mine for me, they also did a focaljet user "focusguy"'s pulley for him.... or contact HocusFocus or whatever....he said he was having some other company make him a really huge crank pulley and a smaller waterpump pulley so the crank one would fit....

a guy with the focaljet name "Milan" can make any size crank pulley you want...then you have to figure out what your going to do for fuel... I'm having Mike "The Chip Guy" come out here and do a chip for me, I also have a 80mm MAF & 42lb injectors

in a couple weeks when I get everything on I'll post a list of everything I needed
 
#10 ·
Originally posted by hotrodkris:
y'all can do whatcha like

all I know is that all the parts that are being R&D'd on my car are meant to work together as a KIT.

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<font size="2" face="Verdana, Arial">I saw the other thread where you said that there was no pricing. Makes sense, sounds like things aren't 100% done...

Any updates on the kit that you can pass along? Any chance your car will be in Jackson's booth at SEMA next month? I'll be stopping by and annoying them to the point where they have to give me a SC kit so I'll shutup and leave (ok, not really, but I can dream).

edit: To clarify, I WILL be at SEMA, but I kind of doubt they'll give me a kit.
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[ 10-04-2002, 08:00 PM: Message edited by: CharlesWA ]
 
#11 ·
Originally posted by fruitport_focus:
The point is hotrodkris, why wait if we don't have to? I'd rather get the smaller pulley (on backorder) and do the MIC.
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<font size="2" face="Verdana, Arial">You think the MIC is just going to magically take care of all the tuning for added boost with the JRSC?
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How rich do you plan on running it? How much timing do you plan on pulling? It's going to be a butt-load depending how how much boost you want to run.
And I hope your talking about not TOM's MIC setup. I can almost gaurantee, you'll not be able to MIC this without dyno time!

So yes, it's your choice.. Get your own pulley, do your own upgrade, spend hundreds of dollars for the necessary dyno time to tune it right, and the extra money for the new injectors, chip, and Maf recalibration.

I would just rather waite for a dyno tested solution and save my money, but as long as you know you got it covered
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#13 ·
Originally posted by TRUenemy00:
no, it will not "magically" do it...it will be done through Mike tuning the car.....they have done it before with "focusguy";s car and did 11psi safely, he drives the car hard everyday, no problems
no, you will not NEED dyno time because Mike can come out to you and do your chip with a portable wideband o2 and everything else he needs....

as far as how much timing and fuel, that all up to Mike, or the person tuning the car...whatever's safe.... No one with the MIC has blown a motor and Tom does have the highest horsepower street car so i would say they know what they are doing...

yes, the JR big boost kit is a nice kit if you want 2lbs of boost more and buy everything as a kit, just buy and put on...it might be a little easier but the reqard may be less too

and you wree talkign about having to buy injectors, a mass air, pulley's, a chip....instead of buying it as a kit, what the hell do you think comes with the kit??????!!!!

your going to have to buy injectors, a MAF, intake, pulley, and their black box which has a chip in it....i doubt it will be cheap
yes, you may pay for with the custom route and big boost kit might be a little easier but with the custom route you have more upgradability and most likely more gains
<font size="2" face="Verdana, Arial">Yes I agree.. the point was.. it's not like sending off for a MIC and receiving the parts in the mail and just installing and go! He's going to need to fly Mike out, put in him a hotel and spend the time and money necessary for on the spot tuning! It's not like the AC where the Mike and Tom already have preset solutions that can be done by mail. The point was the fact that there will be a decent amount of EXTRA money put into doing it yourself rather than "waiting" for the big boost kit.

One plus for the big boost kit, is warranty! But if you are looking for more than a 2 PSI jump then yes, custom is the only way to go. It's just gonna be more $$$
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[ 10-05-2002, 01:07 PM: Message edited by: belacyrf ]
 
#14 ·
my real point is that if your going to be hapy with 2lbs more of boost, then go for it...but if not, its worth spending the extra money to go custom...

if you buy JSRC's BB upgrade and your at 7lbs, then you want to go to 9lb later down the road but they do not come out with a 9lb kit, you're forced to:
buy bigger injectors
new pulleys
recalibrate the mass air
and change the chip settings...

inturn, spending the money all over again, thats why i see it worth spending lets say 25% more money on the upgrade now than having to buy it twice

If you buy the MIC and 7lb pulley's, then want to go to 9, all you have to do is buy different pulleys, thats it

i guess its all about how much you want out of the car

[ 10-05-2002, 02:50 PM: Message edited by: TRUenemy00 ]
 
#15 ·
Originally posted by belacyrf:
</font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by fruitport_focus:
The point is hotrodkris, why wait if we don't have to? I'd rather get the smaller pulley (on backorder) and do the MIC.
Image
<font size="2" face="Verdana, Arial">You think the MIC is just going to magically take care of all the tuning for added boost with the JRSC?
Image
How rich do you plan on running it? How much timing do you plan on pulling? It's going to be a butt-load depending how how much boost you want to run.
And I hope your talking about not TOM's MIC setup. I can almost gaurantee, you'll not be able to MIC this without dyno time!

So yes, it's your choice.. Get your own pulley, do your own upgrade, spend hundreds of dollars for the necessary dyno time to tune it right, and the extra money for the new injectors, chip, and Maf recalibration.

I would just rather waite for a dyno tested solution and save my money, but as long as you know you got it covered
Image
</font><hr /></blockquote><font size="2" face="Verdana, Arial">no, it will not "magically" do it...it will be done through Mike tuning the car.....they have done it before with "focusguy";s car and did 11psi safely, he drives the car hard everyday, no problems
no, you will not NEED dyno time because Mike can come out to you and do your chip with a portable wideband o2 and everything else he needs....

as far as how much timing and fuel, that all up to Mike, or the person tuning the car...whatever's safe.... No one with the MIC has blown a motor and Tom does have the highest horsepower street car so i would say they know what they are doing...

yes, the JR big boost kit is a nice kit if you want 2lbs of boost more and buy everything as a kit, just buy and put on...it might be a little easier but the reqard may be less too

and you wree talkign about having to buy injectors, a mass air, pulley's, a chip....instead of buying it as a kit, what the hell do you think comes with the kit??????!!!!

your going to have to buy injectors, a MAF, intake, pulley, and their black box which has a chip in it....i doubt it will be cheap
yes, you may pay for with the custom route and big boost kit might be a little easier but with the custom route you have more upgradability and most likely more gains
 
#16 ·
The car will be a feature vehicle at SEMA, I don't know where it will be placed yet. It's the yellow ZX3 with a Kaminari kit, CF hood, and JR graphics on it. We'll be there ALL WEEK (sigh) so if you want info, go by the JR booth and we can arrange a meeting.

The reason the kit is taking so long is that Oscar's R& D facility is basically a 2 man operation, him, and his wizard machinist/tooling guy. He's working on 5 S/C kits as we speak, and each kit requires time and many, many dyno runs. Believe it or not, the Focus isn't the only sport compact that's out there right now.......
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But thanks for your patience. Believe me, I'd like for our car's loose ends to be 'tied up' as much as you all do.
 
#18 ·
Well one thing we have to remember. Jackson racing is into tuning to perfection, but on a BUDGET! They have to be able to make it at a price that they can sell it. I'm sure if they could easily command 5K+ for every kit, they'd hvae no problem tuning to perfection, because they could throw some more advanced electronics at it.

Anyways, that's what I think. I think anyone with a custom job can tune it to perfect, the downside will be, the money needed to be invested and the probability of not being CARB approved!
 
#19 ·
I for one am ready to wait for the BB kit. I have had the jrsc on my car for over 20K miles and while I have added a lot of mods to the car (65MM TB, custom mapped MAF, JBA, Random Technology cat, MBRP cat back, modified true cold air Volant CAI, as well as running a standard Superchip), the supercharger has been flawless and works well with wll my mods. Everything added gives more power but the everyday reliability, idle, gas mileage is still there. I remember waiting for the original kit to hit the market-frustrating but worth the wait.
With all due respect, look at the thread about SFMS/fifth injector and the trouble some people have with the AC kits-I don't want to blow my engine with a setup that has equipment that is not thoroughly engineered and completely reliable. It costs enough to purchase and takes enough time to install something like the JRSC kit-I want it to work right the first time evrytime. With my engine mods and even with the superchip, I have heard absolutely no detonation in over 20K miles.
I know that the JRSC will never make the kind of power that a properly tuned high power turbo can but I like what it does!
 
#20 ·
What a loaded question....do you want a daily driver or an all out track car? To be honest,
a focus is not a likely candidate to run 11's
and still have manors. I've got a '00 with a
JRSC (2.6" pulley), FC 65mm TB, 70mm pro-flow
MAF, JBA shorti, Random Technologies hi-flow cat,
FC 2.25" flexpipe, HKS hyper cat-back, port &
polish FC head w/ Crower cams (220 duration @ .50/
110 degree lobe seperation) and 42 lb/hr injectors. Until Mike or Tom tunes it, a Diablo
chip is doing the job. There have been plenty of
minor setbacks like belt problems, but that's part
of building a car. I've done Cuda's & old Torino's that were MUCH simpler to turn 13's with
than trying to wring this out of a grocery getter.
That doesn't mean it's not worth the look on some
poor Acura RS owner's face when you smoke him, but
how much money & sweat & ag are you willing to put
up with? Call Nader @ FC (he is much more forth-
coming with info than Jackson has been - they play
their cards very close to their vest) or someone
you trust about what you want to do. A very good
friend of mine said "If you want your car to go
faster, than buy a faster car". After all the time and money this project has consumed, he was
absolutely correct. Would I do it over? Who knows, but set some realistic goals before you dive in. I'm sure a ton of people on this site
have learned the hard way about the wonderful world of high performance, so read up on their
experiences and remember that sh#@ can happen to your car too. Murphy made that law for a reason.
 
#22 ·
What he said-nice setup. Is the 2.6" pulley stock or is that smaller? Also do those cams work well w/the JRSC? How's the idle? What are you doing for fuel management with that setup- any detonation? Sorry for all the questions but your setup is similar to mine and inquiring minds want to know!

00 ZX3 w/JRSC, JBA, Random TECH cat, MBRP cat back, FC 65MM TB, 70mm Pro-flo, Modified Volant, standard Superchip.
 
#24 ·
Thanks for the info! Where do you get the s/c and crank pulleys? Let me know how it works! How does your setup campare to mine (see previous post)-what are you doing for fuel management issues or do you even have any? My setup runs fine currently but as always, it's never ever enough!
Want More Boost! (currently max about 4.5)
 
#25 ·
actually the stock pulley is 3.4" and it does idle a little high (@1500 - 1600 rpm). this might be due to a vaccuum leak which is a common
problem with my car. I plan on having Mike or
Tom tune it & install whatever is necessary to
manage the air/fuel levels. Before the power steering resevoir sprung a leak due to a shreaded
belt, I did hit 8.5 lbs boost on a cool night &
7.5 - 8 lbs on a daily basis (with factory crank
pulley). Be wary of changing the stock unit to an overdrive pulley without oversizing the AC/PS/
alternator pulleys. Spinning these too fast will cause more trouble than just a little hp loss -
an odd voltage from the alternator can fry things.
Until I replace the PS res the belt slips more than a bad comedian on a banana peel, but still gets 5-6lbs boost. The original set up did boost
@4 lbs max, but we think the belt was slipping then (I just didn't notice the leak then). After
all is tuned I plan on running it at Atco - we expect it to do high 14's. Further details in a few weeks.
 
#26 ·
I'll post my entire setup when its done but as far as fueling and boost I'm puting on:

80mm lightning MAF
42lb injectors
Mike (chipguy) chip
2.3 s/c pulley
5.9 crank pulley

I'm only seeing 3lbs of boost...I'm expecting anywhere from 9-12lbs of boost and high 13's

the only problem I'm pretty sure I'm going to run into is the clutch....I'm planning on doing a brand new tranny with a centerforce clutch and quaife in december....hope it holds the power till then

as far as the s/c getting too hot and all of that, I'm pretty sure i have it under control...

stay tuned
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edit: and just so you know, don't plan on overdriving the waterpump pulley because the bigger w/p pulley will not fit with a bigger crank pulley

ps: how do you only expect to do high 14's? People are doing mid-high 14's with everything you have minus the supercharger... I'm doing 15.3 with intake/exhaust and 3psi... you have a completely done head and 8-9psi of boost...high 14's is a very very small goal

[ 10-13-2002, 12:39 AM: Message edited by: TRUenemy00 ]