2014 Porsche Cayman Thread - 991 Conversion
#78
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Join Date: Jan 2013
Location: Chicagoland Area
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#80
Banned
Join Date: Jan 2013
Location: Chicagoland Area
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#82
Basic Sponsor
Rennlist
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The CTSCC Gran Sport regulations require the GTS 3.8 to be stock (408 hp) and they are sealed by the sanctioning body to eliminate performance enhancements. You're not allowed to race if the seal is broken. These regs would apply to the Rum Bum 2013 championship winning car driven by Nick Longhi referred to in the article. BTW, the stock GTS motors are also used by other Gran Sport teams which is a testament to the strength and reliability of the 9A1 motor.
The same engine regs do not apply to the DeMan Cayman builds described in the article freeing DeMan to tune the motors for higher levels of performance, as I understand it.
The same engine regs do not apply to the DeMan Cayman builds described in the article freeing DeMan to tune the motors for higher levels of performance, as I understand it.
The 3.8L GTS engine is outstanding right out of the box, 408 HP is Porsche's advertised rating. With unrestricted exhaust , freeing up induction side of things and ECU tuning the engines we have installed in Cayman conversions (11 to date of the X51 and 9 of the 3.8L S engine) have made a high so far of 447 HP for the X51 and 410 for the S..
We are in Love with the cars and love this conversion..
Give a call with any questions..
Regards
Rick Deman
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2016 GT4-R
Rick DeMan
DeMan Motorsport
Upper Nyack, NY
845 727 3070
Porsche Sales & Service
Porsche Race services and parts
www.DeManMotorsport.com
2016 GT4-R
Rick DeMan
DeMan Motorsport
Upper Nyack, NY
845 727 3070
Porsche Sales & Service
Porsche Race services and parts
www.DeManMotorsport.com
#83
Rennlist Member
I was at RRR today and Mike showed me photos of the CTSCC ST Cayman you are building for them. It looks to match the great craftsmanship and attention to detail that he and Jim have pointed out to me on the GTS GS car of theirs that you built. They're great guys and Rebel Rock and DeMan Motorsport should be a great combo. I can't wait to see them in action at Sebring and the new Cayman at Laguna Seca!
Mike
Mike
#84
Three Wheelin'
Hi! You must be Morgan's dad. I figured you would like some photos of the project. We have removed the 987.2 3.4L, we have ordered the 3.8L and we are removing the cylinder heads for porting once that motor arrives. We are essentially making a BGB X51 swap for Morgan. He's getting all hard bushings in the drivetrain, headers, flash and one heck of a new paint job. For now, the car can go to the body shop for paint while we wait for the arrival of the 3.8L, send off the cylinder heads for porting and await the arrival of the exhaust manifolds.
I have some photos below.
I called Morgan last week to see if he wanted a baseline dyno so that all of you guys can see what you're getting for your money. She made 305rwhp which is just what a 3.4L makes. Actually, that motor is probably pretty cherry since she should have dyno'd right at 300rwhp. We hope to return with 390rwhp PLUS.
Stay tuned!
I have some photos below.
I called Morgan last week to see if he wanted a baseline dyno so that all of you guys can see what you're getting for your money. She made 305rwhp which is just what a 3.4L makes. Actually, that motor is probably pretty cherry since she should have dyno'd right at 300rwhp. We hope to return with 390rwhp PLUS.
Stay tuned!
#87
Nordschleife Master
#88
Three Wheelin'
That decent oh for a stock 3.4 DFI (no mods). Didn't know they were running that strong. Compared to the 991 3.8 it's sure down on torque but strong for a 3.4
#89
Nordschleife Master
#90
Rennlist Member
Here is an interesting offer for those needing a 3.8L engine from a 3.4
http://www.planet-9.com/987-cayman-b...ne-wanted.html
http://www.planet-9.com/987-cayman-b...ne-wanted.html