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Forced Induction Turbo, Supercharger, Methanol, Nitrous


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Old 07-09-2020, 11:36 PM   #5517
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The time has finally come, and I'm installing a JRSC C30 in my '15 FRS in the next few weeks.

Everything is currently stock on this car, and I just passed the 70K mile mark. Just did a full OEM clutch/flywheel replacement (was replacing the shitty OEM release bearing, so I went ahead and did the rest while I was in there), along with the rest of the 65K maintenance.

I don't track it, it's my daily driver w/ about an hour a day spent in it split pretty evenly between highway and city traffic.

For now I'm sticking to 91/93, but I may go in on a FlexFuel kit in the next couple of years for some E85 goodness.

I've seen some conflicting info in this thread and elsewhere on what other equipment is needed for peace of mind with this super, e.g. extra oil coolers and injectors etc.

Is any of that really necessary for a daily driver? I'm in Las Vegas which right now is getting up to 110 F... should that make me concerned enough to burn some more cash on cooling?

Also, I have a station near me that sells 100 fuel. I know that performance increases cease pretty much at 93, but would the right tune get me anything out of it?

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Old 07-10-2020, 07:59 AM   #5518
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Originally Posted by Escher View Post
The time has finally come, and I'm installing a JRSC C30 in my '15 FRS in the next few weeks.

Everything is currently stock on this car, and I just passed the 70K mile mark. Just did a full OEM clutch/flywheel replacement (was replacing the shitty OEM release bearing, so I went ahead and did the rest while I was in there), along with the rest of the 65K maintenance.

I don't track it, it's my daily driver w/ about an hour a day spent in it split pretty evenly between highway and city traffic.

For now I'm sticking to 91/93, but I may go in on a FlexFuel kit in the next couple of years for some E85 goodness.

I've seen some conflicting info in this thread and elsewhere on what other equipment is needed for peace of mind with this super, e.g. extra oil coolers and injectors etc.

Is any of that really necessary for a daily driver? I'm in Las Vegas which right now is getting up to 110 F... should that make me concerned enough to burn some more cash on cooling?

Also, I have a station near me that sells 100 fuel. I know that performance increases cease pretty much at 93, but would the right tune get me anything out of it?
Is the extra cooling required? No.

Will it be better for the car? Yes.

How much cash you want to spend is up to you.

If you're not doing E-85 yet you can hold off on the injectors and fuel pump, yes you can run the C30 and stock (low boost) pulley and E-85 without upgrading them but again, it's better if you do.

A custom tune can get you gains with 100 octane but unless you can guarantee that you'll be running that in every single tank I wouldn't do it.
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Old 07-10-2020, 06:49 PM   #5519
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Is the extra cooling required? No.

Will it be better for the car? Yes.

How much cash you want to spend is up to you.

If you're not doing E-85 yet you can hold off on the injectors and fuel pump, yes you can run the C30 and stock (low boost) pulley and E-85 without upgrading them but again, it's better if you do.

A custom tune can get you gains with 100 octane but unless you can guarantee that you'll be running that in every single tank I wouldn't do it.
How about headers? I've read mostly that stock headers are A-OK, but w/ FI does that change?
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Old 07-10-2020, 06:59 PM   #5520
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How about headers? I've read mostly that stock headers are A-OK, but w/ FI does that change?
Stock headers are fine, unless you're looking for more power you don't need to change them.
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Old 07-10-2020, 08:49 PM   #5521
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The time has finally come, and I'm installing a JRSC C30 in my '15 FRS in the next few weeks.



Is any of that really necessary for a daily driver? I'm in Las Vegas which right now is getting up to 110 F... should that make me concerned enough to burn some more cash on cooling?
im in a '13 with a c30 jrsc with ZERO supporting mods. ZERO. nothing is 100% necessary for you to go f/i, other than the kit and tune. it is however worth getting the jr track oil cooler while you are going through the process of installing a supercharger, this is coming from someone that doesnt have an oil cooler. its not that i over heat, ive never had a single problem, but just put it in while youre in there... just put the oil cooler in. its $500 that you are not going to miss in 4 months.

as for the tune, just tune it on 93 or whatever you said was local, i wouldnt bother with the 100. 93 is the bread and butter, dont get carried away.
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Old 07-16-2020, 10:36 PM   #5522
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well i can tell you this once you get it you will not stop the feel you get cant be expressed i have a c38 and love it. also if you are getting a supercharger plan on spending at least 10,000 on the support moods needed of course that includes the supercharger. some people will say BS but to have it done right and really enjoy it that will be around what you need. delicious tuning are some awesome guys to work with and are very helpful with what you need. not to mention Jackson racing will give you advice also. I drive mine whenever i can for a daily driver no track or racing.
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Old 07-16-2020, 11:37 PM   #5523
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well i can tell you this once you get it you will not stop the feel you get cant be expressed i have a c38 and love it. also if you are getting a supercharger plan on spending at least 10,000 on the support moods needed of course that includes the supercharger. some people will say BS but to have it done right and really enjoy it that will be around what you need. delicious tuning are some awesome guys to work with and are very helpful with what you need. not to mention Jackson racing will give you advice also. I drive mine whenever i can for a daily driver no track or racing.
im fairly certain a LS swap can be done by a shop for you for 10 grand. people can debate, bulletproof n/a v8, or a 4 banger with a spooly boy. im not trying to rub you the wrong way, i have a jrsc too, and wouldnt have it any other way, but damn, when you look at 10 grand on the table and say what can i do with this for the car... i mean i suppose a c38 with injectors, fuel pump, e85, small pulley, i guess your making around what a LS makes. someone fill me in.

let me know, @CSG_Mike if i walked into the shop, stock frs, how much power can i make with 10 grand? platform and handling aside, just for the sake of conversation.
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Old 07-17-2020, 06:40 AM   #5524
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also dont forget about the exhaust that goes with it and if you can do all the labor yourself
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Old 07-17-2020, 08:54 AM   #5525
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FINALLY got to the track with the supercharger on, and I can not describe the joyful sensation of once being slow, and now NOT being slow(relatively) on the straights. I was able to pass or keep up with just about everyone outside of the ZL1s and C7s. Max oil temp was 242, max IAT was 150 and the motor/blower was rock steady for 3 sessions at VIR.
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I swear I will punch your car if you put these on. Right in the face.
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Old 07-17-2020, 10:56 AM   #5526
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im fairly certain a LS swap can be done by a shop for you for 10 grand. people can debate, bulletproof n/a v8, or a 4 banger with a spooly boy. im not trying to rub you the wrong way, i have a jrsc too, and wouldnt have it any other way, but damn, when you look at 10 grand on the table and say what can i do with this for the car... i mean i suppose a c38 with injectors, fuel pump, e85, small pulley, i guess your making around what a LS makes. someone fill me in.

let me know, @CSG_Mike if i walked into the shop, stock frs, how much power can i make with 10 grand? platform and handling aside, just for the sake of conversation.
Sustainably? ~325-350whp.

Unsustainably? 500+

You're not gonna get any LS swap done for remotely close to 10k unless you're doing all the labor yourself with zero time value.
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Old 07-17-2020, 01:37 PM   #5527
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well i can tell you this once you get it you will not stop the feel you get cant be expressed i have a c38 and love it. also if you are getting a supercharger plan on spending at least 10,000 on the support moods needed of course that includes the supercharger. some people will say BS but to have it done right and really enjoy it that will be around what you need. delicious tuning are some awesome guys to work with and are very helpful with what you need. not to mention Jackson racing will give you advice also. I drive mine whenever i can for a daily driver no track or racing.
I have spent more than $10,000 just for JRSC. The cost of the kit is $5000 and I installed it. But I have to take loss of warranty and paying $5000 for valve spring replacement into account for installing JRSC. Failing valve springs were probably not because of JRSC but warranty did not apply due to modification.

I am not counting the oil cooler, catch can, etc.
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Old 07-17-2020, 04:19 PM   #5528
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I gave up on adding up how much I spend on the car, nobody likes to see men cry.

Definitely not cheap, but there are ways you can reduce the cost (at a risk of course). I bought my kit used for $2.5k with an alleged 5k miles on it, so far I've had no issues with it. I installed everything myself, I bought the fuel pump as an open box item but I went overboard with the injectors (1,200 cc). You can get away with less money if the car is for street only.

Due to a bad tuning experience, I won't be surprised if the engine blows but I'm already saving up for some forged internals. If I get a differnet exhaust I might be able to squeeze more power out of my setup, but exhaust alone will be another $2k.
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Old 07-18-2020, 10:20 PM   #5529
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FINALLY got to the track with the supercharger on, and I can not describe the joyful sensation of once being slow, and now NOT being slow(relatively) on the straights. I was able to pass or keep up with just about everyone outside of the ZL1s and C7s. Max oil temp was 242, max IAT was 150 and the motor/blower was rock steady for 3 sessions at VIR.
Awesome partner
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Old 07-27-2020, 02:00 PM   #5530
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I'm looking at a JRSC and I would like to run it with a perrin oil cooler. Is this possible without too much fiddling with drills?
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