View Full Version : Few Supercharging Questions for my B18CR
Alexplicit
08-09-2011, 11:29 AM
i have just purchased a JRSC for my JDM ITR.
i have a few questions,
basically i will be installing it myself (prepare yourself for head torments as i can never work shit out :D)
the things im worried about is that after its all installed and everything is running, will it be safe for me to drive it from my hometown to sydney (bout 6 hours away) without it being retuned is currently N/A tuned and is about 135KW
what about injectors?? will my standard ones be able to cope?
can i still use my INJEN intake??
are there any other problems i may run into?
dougie_504
08-09-2011, 04:46 PM
What PSI belt are you going to run?
Don't think your ITR injectors will cope, and even if they did they'd be working very hard. Best consider something like a 440cc injector so they won't have to run at maximum capacity. What are ITR ones, 240cc?
Don't know a lot about the SC tuning but given the distance it might be a good idea to take it on a trailor. Personally I would, that's a long drive bro.
Injen you should be able to use, at least most of it should it require any modifying.
Problems...I'm sure you'll have lots mate haha. Will be interested to see though :)
Alexplicit
08-09-2011, 07:45 PM
will be on a 5psi to start with, i am completely and entirely new to Superchargers... honestly never thought id own one lol.
will the car be alright to drive without being tuned?? or will it detonate?
in the kit there is a walbro fuel pump, and also a fuel pressure regulator.
hahaha im sure ill have gazillions of problems :) glad you guys are all here to help :)
im hoping people will be interested in seeing my progress on this, as i dont think there are a great deal of S/C b18cr's?
mugen_ctr
08-09-2011, 08:43 PM
Truthfully, u can drive without a tune, but its very risky, and with a supercharge, u have more of chance of detonating the motor than turbo, as turbo u can drive off boost safely, were supercharger, its always creating positive manifold pressure, the risk are much higher imo
If i recall, the JRSC kits often use a twin screw type sc, usually a JRSC housing with eaton internals, so if it does fail, atleast u know it can be rebuilt here lol
Definite go for anything from 330cc on wards, but really depends on the power ur after, which will determinate what injectors u get, 440cc is the norm, even ppl with 120kw still run 440cc in there car
at the end of the day, just ask the tuner what can be done or not, cause its them who will make or break ur motor, not us LOL
TODA AU
08-09-2011, 08:49 PM
http://www.supercharger.com/graphics/products/instructions/989-500.pdf
bennjamin
08-09-2011, 08:57 PM
Mate
Do this - grab all the parts , and drive to Sydney and get it installed here - preferably at the tuners shop and not worry.
Ps don't use standard injectors.
Alexplicit
08-09-2011, 09:50 PM
WOW thanks for that adrian!
Ben: well at the moment, i will be probably be installing it at home, injectors i will have to replace here also (if necessary), my main concern is if i bump up the fuel pressure to x? amount will it be safe for me to baby it up to adrian (toda).
reguarding injectors, someone explain to me why a fuel pressure reg is provided with a JRSC, is this for cheapskates who wont buy new injectors? or can i actually use this safely with my injectors? or at least until i can afford good ones that meet my requirements.
Benson
08-09-2011, 11:38 PM
Mate
Do this - grab all the parts , and drive to Sydney and get it installed here - preferably at the tuners shop and not worry.
Ps don't use standard injectors.
Good advice. You might save a few hundreds doing it yourself, but might end up losing a few thousands to save those few hundreds
IEVAQ8
09-09-2011, 07:50 AM
If it was me...
Bolt it all up...
Get it running...and just take the supercharger belt off and cruze to sydney...
Put da belt on and get it tuned. ...
Touge Tom
09-09-2011, 11:55 AM
Install the complete kit but not the belt that run the supercharger. You should have no problems. Getting it to where ever your taking it. Cos with out the drive belt you won't make boost. I sometimes run my system like this on long trips to save a bit of fuel.
Touge Tom
09-09-2011, 11:58 AM
If it was me...
Bolt it all up...
Get it running...and just take the supercharger belt off and cruze to sydney...
Put da belt on and get it tuned. ... you got in before I could finish posting. Same point!
Alexplicit
09-09-2011, 07:06 PM
just to ask, but wouldnt your economy be the same if not worse due to such a restrictive path the air has to flow through?
Touge Tom
09-09-2011, 07:23 PM
no the economy improves. ecu/S200 reads less air @ X revs and X throttle position and calculates the amount of fuel needed for those values. but the response,torque and power suffer.
Alexplicit
09-09-2011, 07:34 PM
ohh oki :)
makes sence, i just assumed you would have to drive the car harder to get anywhere ect, like i said im new to s/c, i know when i turbo'd my old gti my fuel economy was absolutely AMAZING compared to n/a
Touge Tom
10-09-2011, 04:12 PM
Well using lower comp piston helps. Due to them making less vacuum at idle and before boost comes on. Similar physics to only pulling half hay on a plunger in a syringe, your pulling less volume into the cylinder.
GSi_PSi
11-09-2011, 11:50 PM
hey alex where did you pick up the jrsc ?
Alexplicit
12-09-2011, 12:18 AM
guy on here that was selling it for a while. im picking it up on saturday :D yay!!!
justinagar
19-09-2011, 12:42 PM
Make sure that you will upgrade everything. Getting a side mount intercooler would be nice especially now that your front would be crowded with metal.
Alexplicit
19-09-2011, 08:20 PM
firstly you cant use a front mount on JRSC unfortunately, secondly the supercharger replaces the intake manifold and the charger itself sits under the intake manifold, thirdly you spelt SYDNEY wrong in your Signature.
Touge Tom
19-09-2011, 09:28 PM
You could, but when you pop you hood. People will realise your noob of the maximum degree. Then again it would have some cooling effect, at insane speeds. But at the cost of air velocity reaching the charger.
mugen_ctr
20-09-2011, 12:46 AM
Make sure that you will upgrade everything. Getting a side mount intercooler would be nice especially now that your front would be crowded with metal.
JRSC kits are always a twin screw type SC, unlike what u see on conventional 4 bangers such as S2k (CAPA and Comptech), which uses a blower type SC, for which than u can run a FMIC and a bov, the JRSC isnt designed for any cooler design due to how its designed, as mentioned, JR have redesigned a whole new intake manifold with the SC to be bolted ontop, due to the nature of the type of SC used.
Unless ur running some sort of a blower sc, u wouldnt be touching air to air cooler, but opt for a air to water cooler setup :D
Alexplicit
20-09-2011, 11:55 PM
im actually looking into a water/methanol injection system :) anyone had any experience with these on the street?
Touge Tom
21-09-2011, 09:22 AM
what's ya static comp? and what RON fuel, 98 i hope? is it ya daily driver?
Alexplicit
21-09-2011, 07:21 PM
11.1 ? whatever the standard JDM ITR comp is, it is my daily driver, 98 ALWAYS! police know exactly hu i am, and i generally dont boot it everywhere i go. however in saying that i do drive it :).
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