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Old 10-23-2018, 11:29 AM   #4761
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Originally Posted by mrg666 View Post
I have JRSC (c30 with default pulley) installed on a stock engine (stock header, injectors, fuel pump, etc) with CARB tune. I am noticing that the CARB tune, although it is very smooth and efficient at normal temperatures, does not seem to perform well in colder weather. I can understand that hot or cold temperature can affect the performance (power) but the engine should still be smooth at least. The engine feels different on a cold day in the same week with the same gas in the tank. Is there an updated tune for JRSC that I can get? Do you think Delicious tune can help? If I order Flash & Go tune, do I need to replace the MAP sensor?
There is no update on the CARB calibration. Are you letting the engine get up to temp? This calibration was tested during the Cold Winter in Colorado at Altitude and it was perfect. Boost loves the dense air when it is cold out and the car will drive better and make more power on colder days. If you are having drivability issues, it is likely from something else. You can email our tech department at tech@jacksonracing.com, as they can help you better than anyone on this forum.

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Old 10-23-2018, 12:00 PM   #4762
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Hate to parrot what JR said but I agree. I drove my car with the same setup you have last winter in sub freezing temps and didnt have any issues.
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Old 10-23-2018, 04:57 PM   #4763
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Clean your MAF sensor. A dirty MAF affects the entire RPM range, but affects idle most!
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Old 10-24-2018, 01:20 AM   #4764
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how many quarts of traction fluid do i need?

just got this kit second hand

thanks
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Old 10-24-2018, 02:15 AM   #4765
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how many quarts of traction fluid do i need?

just got this kit second hand

thanks
One. You should also replace the filter.

https://www.counterspacegarage.com/r...-fluid-1-liter

https://www.counterspacegarage.com/rotrex-oil-filter
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Old 10-26-2018, 07:55 PM   #4766
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Reporting back from track weekend.

Last time I took the car for a shake down at an HPDE event and car ran fine all day. I went on a 2 days time trials at Laguna Seca. Car ran flawlessly all day. The CARB tune and street tires put me in the midpack of my run group. The power delivery is smooth and linear, perhaps too smooth and linear that it felt drama-less - in a good way While still no match with most cars purely in acceleration department, I wasn't far off to most except some really fast ones

The smooth and linear power delivery induces high confidence, and I noticed that within 2 sessions I was pretty much pedal to metal all the time, so much I literally ran full tank of gas in the next 2 sessions. I had little under 1/5th tank when I prep'ed to exit and that's when session ended. I filled up the tang and did the calculation: 7.2 miles / gallon! At 2.238 miles, a gallon gives just little over 3 laps...

Not that using gas bothers me, but this means I need to watch my fuel more closely than what I am used to.

Lesson here is to those tracking their JRSC'ed FRS/BRZ, don't forget to check fuel level every lap !!

Oh, engine temp stayed cool all day, never went near half mark

Happy supercharging
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Old 10-26-2018, 08:15 PM   #4767
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Originally Posted by milanojess View Post
Reporting back from track weekend.

Last time I took the car for a shake down at an HPDE event and car ran fine all day. I went on a 2 days time trials at Laguna Seca. Car ran flawlessly all day. The CARB tune and street tires put me in the midpack of my run group. The power delivery is smooth and linear, perhaps too smooth and linear that it felt drama-less - in a good way While still no match with most cars purely in acceleration department, I wasn't far off to most except some really fast ones

The smooth and linear power delivery induces high confidence, and I noticed that within 2 sessions I was pretty much pedal to metal all the time, so much I literally ran full tank of gas in the next 2 sessions. I had little under 1/5th tank when I prep'ed to exit and that's when session ended. I filled up the tang and did the calculation: 7.2 miles / gallon! At 2.238 miles, a gallon gives just little over 3 laps...

Not that using gas bothers me, but this means I need to watch my fuel more closely than what I am used to.

Lesson here is to those tracking their JRSC'ed FRS/BRZ, don't forget to check fuel level every lap !!

Oh, engine temp stayed cool all day, never went near half mark

Happy supercharging
Curious, you using Jackson's oil cooler?

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Old 10-26-2018, 08:53 PM   #4768
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Yes I do have the JRSC engine oil cooler
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Old 10-26-2018, 09:00 PM   #4769
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Okay just wondering. I should PROBABLY get one in case mine ever finds itself on a track.
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Yes I do have the JRSC engine oil cooler
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Old 10-29-2018, 06:09 PM   #4770
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my understanding is that these cars' oil temp gets pretty high even in stock form. The obdii port has oil temp readout but no gauge displays that critical info. I think any modded engine that sees hard use should have the oil cool installed.
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Old 10-29-2018, 06:51 PM   #4771
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I'm aware of the nessecity of the oil cooler for track use. I'm more or less on the edge of making the plunge into taking my car to the track but knowing myself it may become a hobby that has my interest one or two track days then I'll just walk away from it like it didn't happen.
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my understanding is that these cars' oil temp gets pretty high even in stock form. The obdii port has oil temp readout but no gauge displays that critical info. I think any modded engine that sees hard use should have the oil cool installed.
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Old 10-31-2018, 04:28 PM   #4772
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If anyone is interested I parted out my car and have a brand new Jackson Racing C30 High Boost Pulley, and Jackson Racing Version 2 Intake Pipe that I am interested in selling.

Last edited by axelthrasher; 11-01-2018 at 11:30 AM.
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Old 10-31-2018, 04:41 PM   #4773
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my understanding is that these cars' oil temp gets pretty high even in stock form. The obdii port has oil temp readout but no gauge displays that critical info. I think any modded engine that sees hard use should have the oil cool installed.
Before I was boosted, I monitored my oil temperatures on the track. Highest I saw was 275 F. Ambient temperature was 85. I'm running 5W-30. I sent the oil to Blackstone labs and they said it was fine.
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Old 10-31-2018, 05:14 PM   #4774
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If anyone wants to buy this from me, I parted out my car. I also have some brand new JR upgrade parts I'm trying to sell too.


- JR C30 High Boost Pulley
- JR 4 Bar MAP Sensor
- JR Version 2 Intake Pipe
- Forge Diverter/Bypass Valve (replaces the plastic Keiser one in the JR kit)
What is the JR Version 2 Intake Pipe? How is that different from Version 1?

Also would be interested in the JR 4 Bar MAP Sensor and Forge Diverter/By Pass Valve. Price for both? Color for Forge Diverter?

Nevermind this...I just found your other post...PM'D!

Last edited by J1Avs; 10-31-2018 at 05:29 PM.
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