Jackson Racing C38 vs C30 with stock pulleys

[twag4]

Originally Posted by majixmatrix

Dang, seems to be pretty hit or miss for some people. I have a friend who has the high boost pulley on a C38 and flexfuel who's been dailying it for months with no problems!! I can't trust off the shelf tunes haha but Delicious makes good stuff.

If he pushes it at all, he will be hit.

[Irace86.2.0]

Originally Posted by majixmatrix

Dang, seems to be pretty hit or miss for some people. I have a friend who has the high boost pulley on a C38 and flexfuel who's been dailying it for months with no problems!! I can't trust off the shelf tunes haha but Delicious makes good stuff.

I asked just to ask but I wasn’t implying that the tune was the fault in asking.

[mrg666]

Most engine failures I have seen (if not all) are with flexfuel and/or HBP. I am sticking with C30 and CARB tune for the stock engine.

[Breadman]

what is the efficiencies that the c30 and c38 run in? i dont have the maps

[mrg666]

Originally Posted by Breadman

what is the efficiencies that the c30 and c38 run in? i dont have the maps

Here
http://www.rotrex.com/Home/Technolog...Technical_Data

[Breadman]

Originally Posted by mrg666

Here
http://www.rotrex.com/Home/Technolog...Technical_Data

now i just have to reremember how to do these graphs

[twag4]

Originally Posted by Irace86.2.0

I asked just to ask but I wasn’t implying that the tune was the fault in asking.

I didn’t read that into it at all. Just saying that the rods are the weak link. I don’t blame the tune quality at all. Everything within my engine was sound- except for the carnage caused by a rod that broke at the wrist pin that then turned into a weed eater inside an aluminum block. Savage!

[PollosHermanos]

Originally Posted by twag4

I didn’t read that into it at all. Just saying that the rods are the weak link. I don’t blame the tune quality at all. Everything within my engine was sound- except for the carnage caused by a rod that broke at the wrist pin that then turned into a weed eater inside an aluminum block. Savage!

This is the kind of thing that makes me think twice before going FI - any pics of the end results?

Honestly I'm torn. I own this car outright, love it, but part of me still wants more. So I've been doing the "should I go buy that Cayman S" or "lets go bananas on the ole berz" back and fourth.

My latest swing is ack to keep this thing and make it really fun for less than the cost of a new Porsche. That said I don't PLAN on building the motor.

If i do go FI I'll keep the smaller blower, and if I do decide to get the big guy I'll just build the engine.

Any stats on this forum for FI builds gone boom and at what boost/use?

Need to do some searching.

[CSG Mike]

Originally Posted by PollosHermanos

This is the kind of thing that makes me think twice before going FI - any pics of the end results?

Honestly I'm torn. I own this car outright, love it, but part of me still wants more. So I've been doing the "should I go buy that Cayman S" or "lets go bananas on the ole berz" back and fourth.

My latest swing is ack to keep this thing and make it really fun for less than the cost of a new Porsche. That said I don't PLAN on building the motor.

If i do go FI I'll keep the smaller blower, and if I do decide to get the big guy I'll just build the engine.

Any stats on this forum for FI builds gone boom and at what boost/use?

Need to do some searching.

The risk is reasonable with reasonable power gains.

Remember, Edelbrock is so confident that they are willing to put a powertrain warranty on a drivetrain they did not design, when using their supercharger kit and tune, provided you meet their other requirements.

Unfortunately, in your case, your car has too many miles.

Whether you got JRSC, or another supercharger, CARB tunes will generally add minimal risk.

I've yet to ever see a ***SINGLE*** Edelbrock powertrain warranty claim.

[EchoHotel]

Originally Posted by JimmyMac

What's the whp potential of a C30? I'm currently building a motor with stronger rods for insurance if I decide to go boosted later down the road (maybe next year). I'd only be looking for up to 300whp. C30 handle that with ease?

I’m making 385whp on c30

[gtengr]

Originally Posted by Breadman

what is the efficiencies that the c30 and c38 run in? i dont have the maps

Here's what I approximated when I looked at them a few months ago. I forget which pulley I was looking at, but it might have been the high boost pulley with a redline lowered to 7000 rpm. Starting point I think was 4000 rpm. 93 octane.

[Breadman]

didn't expect it being that close with that much room on the c30

[gtengr]

Originally Posted by Breadman

didn't expect it being that close with that much room on the c30

Keep in mind that I can't say for sure if that is the standard pulley or the high boost pulley. I investigated both, but I'm not sure which one I was looking at when the file was saved. I also used a lowered redline of 7000 rpm as my own subjective safety factor, and that is less taxing on the blower.

[Firecruiser]

To me those graphs area bit misleading. With different scales on a axis a visual comparison is not possible. I'm not sure how to make use of the graphs though so maybe it doesn't matter but for someone just glancing at them to compare they look fairly identical when there are significant differences between them.

Just a thought. I may be completely out of my league and need to go back to my corner and shut up lol.