Kraftwerks Rotrex Supercharger Discussion

[OICU812]

@gmsii


(What) aftermarket header is being used in these tests? Asking as haven't heard of one confirmed that fits with this kit.

Also are the toothed pulleys now shipping with kits?

Lastly as others pointed out, with this larger blower what other mods are required?.. Fuel pump, clutch, injectors etc?....

Any chance you guys will create a thermostatic controlled engine oil cooler?


Impressive gains for sure!

[Ralph Spoilsport]

Originally Posted by KraftWerks

We've got a few updates for everyone!

Note:
-All testing was done using California 91 Octane

Pretty cool numbers here. Does the C30 "high boost" tune require fuel mods?

[CSG Mike]

Originally Posted by gmsii

and your purpose for pointing this out is??

it will be the new tune that gets certified

for those that dont know, the longest process with CARB approval is not the lab testing...its the paperwork submittal and approval process. the paperwork has now all been approved and will be going to the lab for final testing and approval.

It's a genuine question. We have several customers on the fence, but are not willing to commit to purchasing the KW kit without a CARB EO#.

Your kit is a difficult sell for California customers when there are 3 other supercharger kits that are CARB legal, so we're looking forward to getting that CARB approval on your kit.

[KraftWerks]

Originally Posted by Ralph Spoilsport

Pretty cool numbers here. Does the C30 "high boost" tune require fuel mods?

Originally Posted by OICU812

(What) aftermarket header is being used in these tests? Asking as haven't heard of one confirmed that fits with this kit.

Also are the toothed pulleys now shipping with kits?

Lastly as others pointed out, with this larger blower what other mods are required?.. Fuel pump, clutch, injectors etc?....

Any chance you guys will create a thermostatic controlled engine oil cooler?


Impressive gains for sure!

To answer some of your questions:
-The aftermarket header used was ours, the borla works as well.
-With the pulley upgrade we used stock fueling.
-When the C38 was tested we installed Grams 550cc injectors as well as a Grams 265 fuel pump.
-We will look at a thermostatic cooler
-Toothed pulleys will be going out to existing customers

[djdnz]

Originally Posted by CSG Mike

It's a genuine question. We have several customers on the fence, but are not willing to commit to purchasing the KW kit without a CARB EO#.

Your kit is a difficult sell for California customers when there are 3 other supercharger kits that are CARB legal, so we're looking forward to getting that CARB approval on your kit.

If you are truly concerned as a vendor who has questions for real potential customers then you would be contacting KW via email or phone, like a proper business would - rather than posting through a forum and waiting for a response that could take weeks.

It's pretty obvious you are JRSC fan, and almost every post in this thread shows it. There is no problem with that, but after a while it becomes tiring when you are constantly badgering the competition.

[sw20kosh]

Originally Posted by djdnz

but after a while it becomes tiring when you are constantly badgering the competition.

this

[Freeman]

Originally Posted by djdnz

It's pretty obvious you are JRSC fan, and almost every post in this thread shows it. There is no problem with that, but after a while it becomes tiring when you are constantly badgering the competition.

Glad to see I'm not the only one that's been thinking that.

[Model Citizen]

X3

[glamcem]

x4

[Ralph Spoilsport]

That C38 is making my credit card twitch. 15% more torque from 3K up.

What do you suppose happens on 100% stock exhaust with C38? Back pressure, sure, but turbos make a ton of back pressure too. Not too worried about bleeding edge peak HP #'s. Would rather keep stock exhaust (it's paid for, quiet, OEM reliable, heat shielded).

[Calum]

Originally Posted by Ralph Spoilsport

That C38 is making my credit card twitch. 15% more torque from 3K up.

What do you suppose happens on 100% stock exhaust with C38? Back pressure, sure, but turbos make a ton of back pressure too. Not too worried about bleeding edge peak HP #'s. Would rather keep stock exhaust (it's paid for, quiet, OEM reliable, heat shielded).

Given that the aftermarket header made pretty well zero difference on the C30, I'm guess, and hoping the header will make little to no difference. Don't worry, my credit card is twitching pretty hard now to. I've just got to remind myself to wait for other to test the waters.

[glamcem]

Originally Posted by KraftWerks

Revised Kraftwerks Tune "r2" vs high boost - (stock header and exhaust on both pulls, smaller blower pulley used for higher boost. C30-94 used on both)

when you say higher boost, how much of boost are you referring to?

AFAIK, kit makes 9 psi boost at redline.

Thanks in advance

[KraftWerks]

Originally Posted by glamcem

when you say higher boost, how much of boost are you referring to?

AFAIK, kit makes 9 psi boost at redline.

Thanks in advance

No problem!
-High boost with the C30 was 13psi
-High boost with the C38 was over 14psi (we haven't finished that tune)

[smbstyle]

Are the C38 and C30 "low boost" runs the same psi?