Drivetrain Swapping from a 15% pulley to 17% pulley?
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2nd Gear
Joined: Mar 2008
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Not much, the higher RPM redline is really only so you can ring the motor out longer (Make it down the straight without shifting). I only made a few more HP at 8250 over 7200. With his cam you'd probably make a bit more power on the top end.
He's been mapping most of the new cars with 7600 or so. Only he can answer that though. Which car is yours? I've been at Danny's almost every day this week, seen a lot of cars
.
He's been mapping most of the new cars with 7600 or so. Only he can answer that though. Which car is yours? I've been at Danny's almost every day this week, seen a lot of cars
.I'm in the UK and should be getting the live map via 1320 Autos on the 15th May.
I have 1320 camshaft- is that the same one Jan has?
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Joined: Nov 2006
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From: Fresno Ca.
. But if the numbers are there, then that means something made that number. Just wondering what it was .
it said MINI on the valve cover... does that help?
No James it was stock supercharger
with the header you have on your car it won't make power much over 7200 but we can increase the rev limit past that so you can hold it down the straights.....
we have some help coming with a bigger tubed header for you that will match the ports properly
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2nd Gear
Joined: Mar 2008
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No James it was stock supercharger
with the header you have on your car it won't make power much over 7200 but we can increase the rev limit past that so you can hold it down the straights.....
we have some help coming with a bigger tubed header for you that will match the ports properly
with the header you have on your car it won't make power much over 7200 but we can increase the rev limit past that so you can hold it down the straights.....
we have some help coming with a bigger tubed header for you that will match the ports properly
Tell me more
I think two people over here have already ordered your header and cat back will be nice to see back to back dyno to show the gain. I will wait to see how loud they are as I have put stock exhaust back on my car as the JCW catback was too loud for me above 3k
6th Gear
Joined: Aug 2005
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From: SoCaL (Agoura Hills)
Tell me more
I think two people over here have already ordered your header and cat back will be nice to see back to back dyno to show the gain. I will wait to see how loud they are as I have put stock exhaust back on my car as the JCW catback was too loud for me above 3k
I think two people over here have already ordered your header and cat back will be nice to see back to back dyno to show the gain. I will wait to see how loud they are as I have put stock exhaust back on my car as the JCW catback was too loud for me above 3k
. JCW is actually softer than stock I though?
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2nd Gear
Joined: Mar 2008
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Can't here my car now
Everyone has said that about the JCW but my one just seemed very loud
6th Gear
Joined: Aug 2005
Posts: 3,902
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From: SoCaL (Agoura Hills)
There's a few decent videos of the RMW exhaust. It's pretty noisy though with that header. I love it, doesn't bother me at all. Only mildly annoying when you have to have lots of power and you're trying to talk (Think hills...).
1st Gear
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Hi all
Having fitted my new head (RMW) the boost pressure has dropped (expected due to big valve head, is not due to a boost leak!)and now I am thinking of upping the boost more by switching to a 17% pulley.
Just to get a collective answer does anyone see any disadvantages from switching to a 17% pulley? (or advantages apart from more power
)
I initially went for the 15% as this is at the top end of the operating scale for the s/c before excessive heat is produced and it seemed the safer option as I had stock I/C (since changed to GP I/C).
James
Go with 53.5 mm pulley. That's something between 17% and 19% and works peferct. I know for at least 10 cars and all works great. Really great.
P.S I will be having Jans tune and was wondering about the extra rpm of the S/C with the 8.2k redline, will it be better to keep 15%?
Having fitted my new head (RMW) the boost pressure has dropped (expected due to big valve head, is not due to a boost leak!)and now I am thinking of upping the boost more by switching to a 17% pulley.
Just to get a collective answer does anyone see any disadvantages from switching to a 17% pulley? (or advantages apart from more power
)I initially went for the 15% as this is at the top end of the operating scale for the s/c before excessive heat is produced and it seemed the safer option as I had stock I/C (since changed to GP I/C).
James
Go with 53.5 mm pulley. That's something between 17% and 19% and works peferct. I know for at least 10 cars and all works great. Really great.
P.S I will be having Jans tune and was wondering about the extra rpm of the S/C with the 8.2k redline, will it be better to keep 15%?
Something like 18%
sorry...couldn't resist
we can offer all of the above , custom tailored to your needs
Btw, how's the stroker beast coming along?
we have other stages coming for the stroker
Safe to assume you're talking about the Rotrex kit that you've been working on?
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