Jackson Racing Supercharger Owners Thread

[Xuningshen]

Originally Posted by dj2020

You think you'll more likely catch oil on the CCV side of things vs the PCV?

well after my post up top, i'm thinking my air was getting oily from the CCV and then my air filter wasn't filtering the dust enough, so it caused my maf to get oily dirty on it and not read correctly. So i imagine i'd see more oil on the CCV side. also it seems to be what a few others have experienced (more oil on CCV than PCV)

[Xero-Limit]

Originally Posted by The Slow One

I figured I'd share my remotedyno session with @moto-mike last weekend.

I had a track event the same weekend and I love how this supercharger pulls, now its just to fix a few issues that came up.. namely my clutch. lol

Also had a dyno day with the Houston 86 Club at DDPR. Numbers didn't change much!

That's the highest we hit at this boost level on any rotrex/centrifugal SC BTW! 325 at ~ 9 psi is turbo territory, not supercharger. Amazing how much better it gets when you have an accurate wideband to go off of and a dyno to make sure you're not overshooting timing with e85. Definitely going to need a clutch with that level of power.

[Kuri]

I was at the dyno. It was loud af

[CSG Mike]

Originally Posted by Xuningshen

I had an interesting situation while i was a good 130 miles away from home. I was out in the desert, joshua tree, (3000ft elev) and my car threw a CEL p0172 as I was just normal driving along about 10 minutes after I been ringing the engine out a decent bit. I did notice the engine was pulling timing, I figured this could've been due to heat and elevation. anyways. to top that off, i had been camping for almost two days and accidently hit a stupid low rock reversing out of a parking spot and it pushed my exhaust back 2"... which i was able to just pull back and after visual inspection the exhaust did not look damaged, as good as i could see from under the car using the emergency jack. this threw off my initial diagnosis. I thought it might've caused a leak causing the o2 sensor to read incorrectly.

anyways. cleared the code for giggles, and yup, it came back. right after i cleared it, the car would not idle. it would die. i gave it gas and i guess fuel trims adjusted and it was able to idle... but LTFT was basically pegged at -25%.... yikes. STFT would spike up to 11%. so needless to say I kept it out of boost for the rest of the day I was there, and for my 2 hour drive back home.

got home... napped... because i had 6 hours of sleep over the past two days. and did some reading. I figured i'd try the easy thing first, and clean the maf sensor. 8 bucks later, and some electrical contact cleaner, sprayed the crap out of the whole maf sensor, let it dry, plugged it back in (CEL was still on, and had not been cleared. fired it up, my STFT reached a mighty 33% on cold start cat warmup and then it threw an additional code of p117b. scary... i decided to just clear the codes and start fresh. did that. and now the car seems to be fine fuel trims look fine. +/- 10% stft and +/- %% LTFT i'm sure they'll settled down even more after i get more than 20 miles on too. idled fine from the get go after the clearing the codes (which resets LTFTs)

I'm trying to get ideas on what exactly happened. and also want to know why my air filter is in such bad shape. after this I inspected my air filter. and its not just dirty, but physically damaged. two spots of the grating to it is frayed and at those same two spots (about 1/2" long by 1/16" wide, just a sliver that were facing down towards the fans so i couldn't see it) are super dirty. I'm going to order a new air filter. but I only have 6k miles on the kit? i know its dusty in the desert and all... but still... i'll do a UOA on this batch of oil and see my silicon content.

anyways super tired from my camping trip, post might be rambling dunno. any thoughts?

tl:dr. Maf sensor dirty(did not look dirty to my naked eye, cleaned anyway), threw code p0172, only 6k miles on air filter, filter looks slightly damaged in two spots, not from my own handling abuse. cleaned maf and all appears good. wut?

damaged filter is installation error. Reposition to prevent damage

Dirty MAF = you should run a catch can on the driver side.

[Xuningshen]

Originally Posted by CSG Mike

damaged filter is installation error. Reposition to prevent damage

Dirty MAF = you should run a catch can on the driver side.

seriously, driving to work, and back home for lunch... throttle is so much smoother now, at low speeds. i guess it degraded slowly over time i did not notice it. it used to be rough-ish under 3k rpm...

[LS1M]

Has anyone run the JRSC with the OFT? They have an OFT tune that goes with the Vortec supercharger but not sure how well it would work with this one.

[uRBAN_Metal]

Originally Posted by LS1M

Has anyone run the JRSC with the OFT? They have an OFT tune that goes with the Vortec supercharger but not sure how well it would work with this one.

It wouldn't. Call up the Openflash guys and see what their plans are. They need a local car to tune before they would release anything. Someone told me they have plans on releasing a JRSC tune soon, but I have no idea if that's true. I sold my OFT to go with EcuTek. Not worth the hassle.

[CSG David]

Originally Posted by LS1M

Has anyone run the JRSC with the OFT? They have an OFT tune that goes with the Vortec supercharger but not sure how well it would work with this one.

Just to give you an idea, the Jackson Racing CARB tune parameters and the tables it uses excessively exceeds the capability of OFT. It is highly recommended you use EcuTek for tuning the JRSC kit.

[Thorpedo]

Originally Posted by CSG David

Just to give you an idea, the Jackson Racing CARB tune parameters and the tables it uses excessively exceeds the capability of OFT. It is highly recommended you use EcuTek for tuning the JRSC kit.

Sounds like an "acceleration has momentum" sort of statement to me. Care to justify why it is "highly recommended"? The complexity of the CARB tune makes no difference whether or not it can be tuned safely and efficiently on the OFT.

[LS1M]

I thought it might. Just looking at different options. It's a bummer that the carb tune is locked because if I want to make any changes, I have to start with a new rom & tune it myself, right? Or have it done by a tuner that doesn't lock it.

[CSG David]

Originally Posted by Thorpedo

Sounds like an "acceleration has momentum" sort of statement to me. Care to justify why it is "highly recommended"? The complexity of the CARB tune makes no difference whether or not it can be tuned safely and efficiently on the OFT.

No need to "simplify" it for us either like you did in an attempted (and failed) justification of your thoughts on over-revving either. Give it to us straight.

True story. You are welcome to try the OFT if you don't believe it. You are welcome to believe anything you want to believe and you definitely don't need to take it from us.

[CSG David]

Originally Posted by LS1M

I thought it might. Just looking at different options. It's a bummer that the carb tune is locked because if I want to make any changes, I have to start with a new rom & tune it myself, right? Or have it done by a tuner that doesn't lock it.

It's locked for a reason because it is smog legalized. Find a tuner who can build you a MAP specific to your setup.

[CSG Mike]

Originally Posted by Thorpedo

Sounds like an "acceleration has momentum" sort of statement to me. Care to justify why it is "highly recommended"? The complexity of the CARB tune makes no difference whether or not it can be tuned safely and efficiently on the OFT.

You cannot go to a tuner, with you oft, and ask them to give you a tune. They can't.

You're essentially stuck with what OFT provides you, and they haven't provided any sort of JRSC compatible map, nor do I forsee one coming in the future. This picture from @DeliciousTuning sums it up perfectly.

0 ecutek issues. Plenty of OFT issues.

You're getting a JRSC, not a KWSC, right?

[LS1M]

I don't think that's required outside of California, is it? Last time I checked, here in Texas they just plug into the odb2 port & if it shows the emissions tests are completed and the SES light is off, you pass.