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Old 10-20-2018, 06:09 PM   #4747
Brz866
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Anyone currently running the C38 with HBP on 93 octane with supporting fuel mods and oil cooler? My question is how reliable is this setup? My understanding is tuning plays a big part and the rest is up to the rods.
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Old 10-20-2018, 06:58 PM   #4748
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I'm putting this out as a feeler:

Would anyone be interested in a used C30 complete JRSC CARB tuned kit?

It's about 3 years old, the C30 itself is about 2 years old as it was replaced a couple years ago when the original failed. I have since over maintained the new unit and change the oil every 12 months regardless of miles.

Everything would be provided to you 100% complete and in very very good condition.

Fair price would be worked out if there was interest.

I am debating returning the car to stock and trading it in.

Private message me so we don't derail the thread here please.

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Old 10-20-2018, 11:38 PM   #4749
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Originally Posted by Brz866 View Post
Anyone currently running the C38 with HBP on 93 octane with supporting fuel mods and oil cooler? My question is how reliable is this setup? My understanding is tuning plays a big part and the rest is up to the rods.
No need for supporting fueling mods for that setup. Oil cooler is always a great idea.

With good tune, you should be okay!

What will the car be used for?
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Old 10-21-2018, 01:21 AM   #4750
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No need for supporting fueling mods for that setup. Oil cooler is always a great idea.

With good tune, you should be okay!

What will the car be used for?
The car will be almost entirely street driven. Maybe an autocross one or twice next year but that's it. Delicious tuning is doing the ecutek e-tune. Just worried about the engine holding up to the increased boost pressure and power levels. I understand this setup with a full catless exhaust could be near the 300 whp zone. I was thinking maybe shifting around 7k instead of redlining would help a lot as well. Any advice on how to be as safe as possible on this setup is much appreciated!

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Old 10-21-2018, 01:26 AM   #4751
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The car will be almost entirely street driven. Maybe an autocross one or twice next year but that's it. Delicious tuning is doing the ecutek e-tune. Just worried about the engine holding up to the increased boost pressure and power levels. I understand this setup with a full catless exhaust could be near the 300 whp zone. I was thinking maybe shifting around 7k instead of redlining would help a lot as well. Any advice on how to be as safe as possible on this setup is much appreciated!

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Shifting at 7k instead of 7400 will definitely help with long term reliability, as well as reduce peak boost seen. Should be totallyfine. Let them know you want the lowered redline.
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Old 10-21-2018, 01:49 AM   #4752
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Shifting at 7k instead of 7400 will definitely help with long term reliability, as well as reduce peak boost seen. Should be totallyfine. Let them know you want the lowered redline.
Thank you Mike that gives me some much needed peace of mind. I've looked but I can't find a whole lot of info involving HBP/93/reliability. I opted for injectors and fuel pump per my tuner's recommendation just in case of E85. Would the stock fueling system have sufficed for HBP and 93?

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Last edited by Brz866; 10-21-2018 at 02:28 AM. Reason: I should clarify I did the injectors and pump as a future-proof in case of E85 down the line.
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Old 10-21-2018, 05:57 AM   #4753
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Thank you Mike that gives me some much needed peace of mind. I've looked but I can't find a whole lot of info involving HBP/93/reliability. I opted for injectors and fuel pump per my tuner's recommendation just in case of E85. Would the stock fueling system have sufficed for HBP and 93?

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Yup!
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Old 10-21-2018, 11:03 AM   #4754
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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?
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Old 10-21-2018, 12:18 PM   #4755
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@mrg666

See other thread with duplicate post for comment.
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Old 10-22-2018, 04:13 PM   #4756
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Quote:
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@mrg666

See other thread with duplicate post for comment.
The whole post was repeated to explain the reason for the following question which I didn't ask in the DT thread.

Is there an updated tune for JRSC that I can get?
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Old 10-22-2018, 07:30 PM   #4757
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I am most interested in comparing stock-header+JRSC to Ace-header+JRSC, I mean the difference Ace header makes with JRSC. Data is very limited showing this difference. Maybe because it doesn't make much difference.
Anything worse than the NA power increase from the Ace is quite frankly impossible. I would expect the NA gains plus another 5-10 rwhp.
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Old 10-22-2018, 11:37 PM   #4758
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Anything worse than the NA power increase from the Ace is quite frankly impossible. I would expect the NA gains plus another 5-10 rwhp.
It will certainly be more than 5-10hp over the CARB tune. Quite a lot more under the curve.
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Old 10-22-2018, 11:53 PM   #4759
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It will certainly be more than 5-10hp over the CARB tune. Quite a lot more under the curve.
5-10 hp over the NA gains would be a 20-30 hp increase
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Old 10-23-2018, 11:23 AM   #4760
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5-10 hp over the NA gains would be a 20-30 hp increase
Whoops. I didn't have coffee yesterday. You said NA in your post twice and I still thought we were talking about a CARB vs. ACE setup. Ignore me!

The post you originally quoted was talking about stock header + JRSC vs. ACE + JRSC—which is indeed at least a 20-30hp difference.
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