Jackson Racing Supercharger Owners Thread

[ML]

Originally Posted by CSG Mike

You can log via Ecutek. With bluetooth connect, you can also visually see it on a display of your choice.

any code reader can also give you a realtime display, as with most track dataloggers.

Ok, ok, so I didn't realize you can monitor boost with the Torque app stock, so thanks for that. And if it is correct, then I'm only seeing about 8.5psi max but I have the 12psi pulley. AFR has been good on the guy who sold it to me's custom tune, but he said he didn't need aftermarket injectors and fuel pump, but I'm seeing that you do according to JR and CSG(what size injectors are recommended?).

So my real question now is, why am I not seeing the full 12psi if the app is reading correctly?

Is the belt slipping? No I don't see/hear any signs of that
Is there a boost leak ? Maybe I guess, I need to smoke test it to find that out.
The guy who had it before me had a BOV on it, could this be set to limit boost to a certain PSI? I have the recirculator, so I will try swapping that out as soon as the stores open back up after christmas to get some more hose.

Thanks in advance

[mswbrz]

What does everyone prefer ? Ecutek with chord or the blue tooth app phone method ?
Also is it possible to upgrade to the blue tooth mode version if you have the chord type with all your same info on it ect ?


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[tomm.brz]

Bluetooth is better in any ways
i also think ecutek stopped producing the chord version and what if you find it on shops is an old stock

yes you can buy bluetooth version and use it without doing nothing else

[peaches]

Originally Posted by ML

Ok, ok, so I didn't realize you can monitor boost with the Torque app stock, so thanks for that. And if it is correct, then I'm only seeing about 8.5psi max but I have the 12psi pulley. AFR has been good on the guy who sold it to me's custom tune, but he said he didn't need aftermarket injectors and fuel pump, but I'm seeing that you do according to JR and CSG(what size injectors are recommended?).

So my real question now is, why am I not seeing the full 12psi if the app is reading correctly?

Is the belt slipping? No I don't see/hear any signs of that
Is there a boost leak ? Maybe I guess, I need to smoke test it to find that out.
The guy who had it before me had a BOV on it, could this be set to limit boost to a certain PSI? I have the recirculator, so I will try swapping that out as soon as the stores open back up after christmas to get some more hose.

Thanks in advance

If you have the HBP bigger injectors are required, and an upgraded fuel pump is highly recommended. Assuming you don't have any exhaust of vacuum leaks, that is one limiting factor, the other one is the tune. I had a bad tuning experience, he was only able to get 8 PSI for a while until he started playing with other parameters then he got 10.5. Once I switched to a reputable tuner I see 12 every time. I would suggest you measure the pulley to make sure it is indeed the smaller one.

I have 1,000 cc injectors but I run E-85, track it, and may go for more power later on, if you only run 91/93 you can get away with 450cc (that is what they sell as an upgrade). I don't know if that is true for the C38, I'd use 700cc to be safe in that case.

[ML]

Most definitely the HBP based on the printed number on the pulley. Yeah its all very curious trying to figure out someone elses choices when getting used parts like this, and I guess its just part of the risk of doing so. But sounds like no matter what I'm going to need injectors/fp.

how does the tune effect the boost reading on a SC though? that kinda confuses me as its all mechanical. I guess maybe the engine measures it in a different way based on fueling? Getting it dyno tuned has been on my mind though, but again need injectors to do that first.

[peaches]

Originally Posted by ML

Most definitely the HBP based on the printed number on the pulley. Yeah its all very curious trying to figure out someone elses choices when getting used parts like this, and I guess its just part of the risk of doing so. But sounds like no matter what I'm going to need injectors/fp.

how does the tune effect the boost reading on a SC though? that kinda confuses me as its all mechanical. I guess maybe the engine measures it in a different way based on fueling? Getting it dyno tuned has been on my mind though, but again need injectors to do that first.

I'm not a tuning expert, but apparently the "issue" with mine was exhaust valve overlap or something. Exhaust valve timing was not optimized, so the engine airflow is reduced. It was nothing mechanical (I did all the install), it was all ECU programming. The other issue he had was that he wasn't using the PI\DI properly, the car had too much fuel all the time and drove like crap on the street.

If you get a tune from CGS or Delicious it'll be pretty good out of the box, it'll just need a few revisions to accommodate your particular setup. Online tunes are convenient but all the logging required can be a pain. I rather have dyno tuning but unfortunately, that led me to a bad experience. So far the car is still running so I think I dodged that bullet.

[tomm.brz]

Do you know that with a Supercharger, lower reached boost could also mean better tune and better cam timings? all the tune and logs must be seen, but lower boost could also mean less resistance and better tune

judging only from that can be a noob mistake

Also stock injector can be good also for high boost pulley and 91/93 octane.. if a tuner says not it s because he s lazy, i use stock injectors with 1bar of boost and still have headroom.. better word is "advised"

[kowalski]

Originally Posted by ML

Ok, ok, so I didn't realize you can monitor boost with the Torque app stock, so thanks for that. And if it is correct, then I'm only seeing about 8.5psi max but I have the 12psi pulley. AFR has been good on the guy who sold it to me's custom tune, but he said he didn't need aftermarket injectors and fuel pump, but I'm seeing that you do according to JR and CSG(what size injectors are recommended?).



So my real question now is, why am I not seeing the full 12psi if the app is reading correctly?



Is the belt slipping? No I don't see/hear any signs of that

Is there a boost leak ? Maybe I guess, I need to smoke test it to find that out.

The guy who had it before me had a BOV on it, could this be set to limit boost to a certain PSI? I have the recirculator, so I will try swapping that out as soon as the stores open back up after christmas to get some more hose.



Thanks in advance

Another thing to consider is altitude. Where I live (1.500 mts above sea level) altitude reduces the amount of boost you woul'd normally get. If that is not the case, then, check elsewhere as others have suggested.

Best!

Enviado desde mi SM-A730F mediante Tapatalk

[peaches]

Originally Posted by tomm.brz

Do you know that with a Supercharger, lower reached boost could also mean better tune and better cam timings? all the tune and logs must be seen, but lower boost could also mean less resistance and better tune

judging only from that can be a noob mistake

Also stock injector can be good also for high boost pulley and 91/93 octane.. if a tuner says not it s because he s lazy, i use stock injectors with 1bar of boost and still have headroom.. better word is "advised"

The tuner doesn't say it's required, Jackson Racing does. The tuner gets paid regardless, he doesn't guarantee the car won't blow up either way. JR spent a lot of time developing and testing the kit, after talking to their support team and giving them all my details they said the car should put out 12. I changed tuners, and it did exactly that. There are variables that can reduce the boost, but they have to be somewhat extreme to lose 4 PSI.

I live in south FL, the car was tuned in 95-degree weather with 80% humidity. It ended up with 12 PSI. He lives in NC, I was just at Road Atlanta and ran a track day in 42-degree weather with 20% humidity, my car was still putting out 12. That is a big difference in weather, what can cause him to lose 4PSI?

Can it work with stock injectors and fp? Of course. Having owned other forced induction cars and learned the hard way what happens when I do things cheaply, am I willing to risk it? Hell no. If you're comfortable doing that, then good for you. Your car is still running? Great! Telling someone to go against JRs recommendations just because you don't want to spend the extra money, that's just bad advice.

I know my engine will see a lot of high RPMs, high temps, and load. Spending an extra $800 to make sure it has more than enough fuel is totally worth it. That's me though, a lot of people who install this kit don't track the car so you can get away with spending less.

[tomm.brz]

Originally Posted by peaches

The tuner doesn't say it's required, Jackson Racing does. The tuner gets paid regardless, he doesn't guarantee the car won't blow up either way. JR spent a lot of time developing and testing the kit, after talking to their support team and giving them all my details they said the car should put out 12. I changed tuners, and it did exactly that. There are variables that can reduce the boost, but they have to be somewhat extreme to lose 4 PSI.

I live in south FL, the car was tuned in 95-degree weather with 80% humidity. It ended up with 12 PSI. He lives in NC, I was just at Road Atlanta and ran a track day in 42-degree weather with 20% humidity, my car was still putting out 12. That is a big difference in weather, what can cause him to lose 4PSI?

Can it work with stock injectors and fp? Of course. Having owned other forced induction cars and learned the hard way what happens when I do things cheaply, am I willing to risk it? Hell no. If you're comfortable doing that, then good for you. Your car is still running? Great! Telling someone to go against JRs recommendations just because you don't want to spend the extra money, that's just bad advice.

I know my engine will see a lot of high RPMs, high temps, and load. Spending an extra $800 to make sure it has more than enough fuel is totally worth it. That's me though, a lot of people who install this kit don't track the car so you can get away with spending less.

boost can change also depending on exh headers and cam timing
when a friend changed to skunk2 header from a UEL header with a hks supercharger, boost went down in higher rom.. but power in dyno went up
more efficient header = less resistance = less boost but more torque produced

even hks says that their bigger injector are REQUIRED for a hks v2 supercharger with 43mm restrictor
i run stock injectors without restrictor, in winter without problems

they are playing safe, doesn t necessarily mean you are obliged to follow what they say if it s not entirely true
of course you are right in saying it is adviced and a good move, totally agree.. but i hope you understand what I meant

[gtengr]

Originally Posted by ML

how does the tune effect the boost reading on a SC though? that kinda confuses me as its all mechanical.

Continuously variable cam timing.

[CSG Mike]

Originally Posted by ML

Ok, ok, so I didn't realize you can monitor boost with the Torque app stock, so thanks for that. And if it is correct, then I'm only seeing about 8.5psi max but I have the 12psi pulley. AFR has been good on the guy who sold it to me's custom tune, but he said he didn't need aftermarket injectors and fuel pump, but I'm seeing that you do according to JR and CSG(what size injectors are recommended?).

So my real question now is, why am I not seeing the full 12psi if the app is reading correctly?

Is the belt slipping? No I don't see/hear any signs of that
Is there a boost leak ? Maybe I guess, I need to smoke test it to find that out.
The guy who had it before me had a BOV on it, could this be set to limit boost to a certain PSI? I have the recirculator, so I will try swapping that out as soon as the stores open back up after christmas to get some more hose.

Thanks in advance

Your MAP is stock, and maxed out; it reads 1.3ish bar absolute.

Which also means, your tune is based on a set of assumptions, and the tune/engine has no way of knowing if those assumptions change, because it physically cannot read the changes....

[ML]

Originally Posted by CSG Mike

Your MAP is stock, and maxed out; it reads 1.3ish bar absolute.

Which also means, your tune is based on a set of assumptions, and the tune/engine has no way of knowing if those assumptions change, because it physically cannot read the changes....

I have an Omni 4bar map sensor. Tune...it’s a custom shiv tune, but who knows the status of that really.

[jflogerzi]

Originally Posted by ML

I have an Omni 4bar map sensor. Tune...it’s a custom shiv tune, but who knows the status of that really.

I would get a new tune from a tuner who continues to develop for the platform. Shiv has really moved on. I would also switch to ecutek when boosted for some of the added safety features and controls.

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