Harvey Smith Up Pipe - My Findings
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Harvey Smith Up Pipe - My Findings
Just thought I would share my results from fitting one of Harveys 3 Bolt Up-Pipes.
I was going to Scoobyclinic for a Meth map, so thought I would also fit the new up pipe to see if it really did what it is suppose to.
My main reason was to aid spool, as I the SC54 is quite a large turbo to run on a 2.1.
Here are the results anyway: Blue line is WITH Harveys Up-Pipe, both on V-Power
With Meths:
Cheers
I was going to Scoobyclinic for a Meth map, so thought I would also fit the new up pipe to see if it really did what it is suppose to.
My main reason was to aid spool, as I the SC54 is quite a large turbo to run on a 2.1.
Here are the results anyway: Blue line is WITH Harveys Up-Pipe, both on V-Power
With Meths:
Cheers
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The standard up pipe which came with the RCM headers.
Yes John, Very
I'm really pleased with it. I was dubious that it would work, but thought I had to try it or I would always be thinking 'What If'. Pleased I did now
Yes John, Very
I'm really pleased with it. I was dubious that it would work, but thought I had to try it or I would always be thinking 'What If'. Pleased I did now
Last edited by chrisdicko; 01 October 2012 at 05:40 PM.
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Yep, approx 500rpm earlier spool. The turbo does spool earlier on the road too.
I think on a smaller turbo it would definitely spool approx 500rpm sooner too. Harvey will have more data to back this up though.
I think on a smaller turbo it would definitely spool approx 500rpm sooner too. Harvey will have more data to back this up though.
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Hi,
please come and drive my car, its got an SC54 Billet on there and its far from laggy,
Remember that one is a 2.1 which we all forget is a mere 5% cc increase over a 2.0 ltr.
On a 2.33 or a 2.5 these things spool like f*ck.
cheers
Kev
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Well done Chris. I think you will agree the improvement in spool and torque right across the rev range were in line with or better than I said they would be when you bought the uppipe. What was a pleasant bonus was the additional BHP.
Different engines, specs and turbos will react differently but generally spool improvements are 350 to 500 RPM on either the 3 bolt header sets or the forerunner 2 bolts of the Gruppe S type with clear torque gains right across the board. Some users report more than 500 RPM spool gains but I have not been present for before and after verification.
Different engines, specs and turbos will react differently but generally spool improvements are 350 to 500 RPM on either the 3 bolt header sets or the forerunner 2 bolts of the Gruppe S type with clear torque gains right across the board. Some users report more than 500 RPM spool gains but I have not been present for before and after verification.
Last edited by harvey; 04 October 2012 at 07:55 AM.
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