Rotrex C38 Kraftwerks log
Joined: May 2010
Posts: 3,422
Likes: 2
I was told directly from Kraftwerks the C38-91 it doesn't nessicerily make more power as it just makes the same power in different places in the rpm band. The c38-81 makes more power on top end where the S's already make their power which is why I upped the rpm.
Like I said, my tune was super conservative. The fuel was very bad. We were having issues all day with fuel.. It was like a crappy 91 not even a good 91 so my luck it's like 87oc haha
You should see a gain in lower band power. The way they described it. It's like a seesaw pull it up on one side it lowers on the other side of the rpm band.
Now I don't know anything about getting more boost out of bigger piping and intercooler... I can attest to Skunk2/Kraftwerks customer service. Holy cow it's been great! Like incredible.. Helped me at every turn. Overnighted stuff. Just really great!
Like I said, my tune was super conservative. The fuel was very bad. We were having issues all day with fuel.. It was like a crappy 91 not even a good 91 so my luck it's like 87oc haha
You should see a gain in lower band power. The way they described it. It's like a seesaw pull it up on one side it lowers on the other side of the rpm band.
Now I don't know anything about getting more boost out of bigger piping and intercooler... I can attest to Skunk2/Kraftwerks customer service. Holy cow it's been great! Like incredible.. Helped me at every turn. Overnighted stuff. Just really great!
Registered User
Joined: Nov 2008
Posts: 67
Likes: 0
From: Timmins, Ontario
"Thanks for the Email. I have guys working on it already. We should be able to get everything taken care of by tomorrow." -Kraftwerks
That was a reply to my first email notifying them of my missing parts on March 6... Still no parts, just a lot of apologies with no explanations.
I have about 7 emails from the past month and half telling me that my parts will be shipped "this Friday", "this coming Monday", "no later than Thursday", still nothing.
Here's to hopes that everything will be awesome in the end but dealing with this kind service is starting to get to me.
Former Sponsor
Joined: Oct 2007
Posts: 28,698
Likes: 38
From: Mooresville, NC
Just saw Evans tuning tuned an ap1 with new kit, skunk2 header, exhaust, test pipe etc on 93. It made 403whp and 235tq with aem ems at 14psi.
I made 406whp 240tq same dyno there with 12.5 psi vortech v2 kit stock header, hks dual exhaust ap1 as well for comparison.
I made 406whp 240tq same dyno there with 12.5 psi vortech v2 kit stock header, hks dual exhaust ap1 as well for comparison.
Joined: May 2007
Posts: 5,491
Likes: 12
i made 400 whp 260 tor with 10 psi vortech v3 , single 70mm exhaust everthing els stock.
Community Organizer
Joined: Jun 2007
Posts: 31,070
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So far the power output of the new c38 kit is rather marginal compared to the old c30 ones, and averaging less peak trq and hp over non maxed out vortech kits. So far this is coinciding with what id expect from the quoted 900cfm of the c38, which for reference is the same cfm the archaic Novi 1000/comptech blowers produce. 
why is tts making so much more? 500+ I'm starting to wonder if kw can even crack 425whp.
why is tts making so much more? 500+ I'm starting to wonder if kw can even crack 425whp.
Joined: May 2010
Posts: 3,422
Likes: 2
So far the power output of the new c38 kit is rather marginal compared to the old c30 ones, and averaging less peak trq and hp over non maxed out vortech kits. So far this is coinciding with what id expect from the quoted 900cfm of the c38, which for reference is the same cfm the archaic Novi 1000/comptech bloweres produce.
why is tts making so much more? 500+ I'm starting to wonder if kw can even crack 425whp.
why is tts making so much more? 500+ I'm starting to wonder if kw can even crack 425whp.
Registered User
Joined: Jan 2008
Posts: 1,095
Likes: 1
Yea I saw this to which brings me to my question. Why would I buy this over the other brands that have proven effective and able to produce more power?
Joined: Oct 2002
Posts: 8,044
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From: South Florida
Originally Posted by Moddiction' timestamp='1397867347' post='23119557
Just saw Evans tuning tuned an ap1 with new kit, skunk2 header, exhaust, test pipe etc on 93. It made 403whp and 235tq with aem ems at 14psi.
I made 406whp 240tq same dyno there with 12.5 psi vortech v2 kit stock header, hks dual exhaust ap1 as well for comparison.
I made 406whp 240tq same dyno there with 12.5 psi vortech v2 kit stock header, hks dual exhaust ap1 as well for comparison.
Yea I saw this to which brings me to my question. Why would I buy this over the other brands that have proven effective and able to produce more power?
