Drove Sharkwerks GT4 development car
#16
I just had lunch with Alex and James after which I took their newly improved version of the GT4 on a short test drive. Having spent some time behind the wheel recently of a bone stock version, I was duly impressed with the result of the Sharkwerks achievements. The combinations of LWF, headers & cats, tune, gearing and GT3 throttle body were indeed a pleasant surprise, they really brought the car alive. I especially liked the gearing, I think for my local roads I would be spending a lot of time in third gear which now provides ample amounts of throttle response and tq to keep in a nice rhythm while enabling one to carry some impressive speed. That being said, it's still not a 3.9 but very easy to drive fast especially if they could improve on the suspension! Well done mates!
#17
GT3 player par excellence
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Joined: Apr 2002
Posts: 43,566
Likes: 5,898
From: san francisco
i know the car and i know the gears. they are GREAT.
just tell alex what you do to and where you drive your car.
then the right gear set will be selected for you.
no need to reinvent wheels. i simply trust the experts, matt and alex
just tell alex what you do to and where you drive your car.
then the right gear set will be selected for you.
no need to reinvent wheels. i simply trust the experts, matt and alex
#20
Addict
Rennlist Member
Rennlist
Site Sponsor
Rennlist Member
Rennlist
Site Sponsor
Joined: Oct 2002
Posts: 7,427
Likes: 85
From: san jose, california
A few more updates since Pete last drove it. Round two if you will:P Have a look at this video-review by ex EVO & now drivetribe.com honcho Henry Catchpole:
https://drivetribe.com/p/GWZx84jyTj6...S8eVF2Eoy3bBKQ
https://drivetribe.com/p/GWZx84jyTj6...S8eVF2Eoy3bBKQ
#21
Originally Posted by Leuz
Probably an obvious question, but are they using their own custom built headers, or using third-party?
Another addition which I can't speak highly enough of is the plenum and tb.. where before 5-7k rpm was flat, now there is continued climb.. it may not be a GT3 engine and it may not have the right gearing, but my car now feels utterly sublime. I would probably go for the lighter flywheel but not the new gears.. doesn't make sense from a cost/outcome perspective after reading pete's post on a spyder... maybe a gt4 which sees more trackwork yes?
Originally Posted by Beantown Kman
Those of us who have installed headers and a tune found the improvement in performance to be very noticeable. Not subtle at all. But I suspect most of us are using 93 octane fuel, or higher. It's becoming more evident that octane is a large factor in this engine's ability to produce power. Even Pete noticed it when he put some race gas in his own car.
#24
On the exhaust side you could get away with just headers (sport w/ cats) and exhaust and no tune....drives fine and no CELs. I drove it like that for quite some time and later added a custom tune via a COBB AP.....the gains, at least on my car, were considerable and improved even more the mid and top end. For the IPD + TB you will need a Tune for sure.
#25
For the IPD + TB you will need a Tune for sure.[/QUOTE]
I drove mine without a tune for a while with the IPD and TB. CEL came on a few times but the car adapted in a few hundred miles and it was fine since.
Added Fabspeeds race headers and COBB with Fabspeeds tune, left the stock exhaust on.
Completely transformed the power delivery, the flat spot is gone and its a totally different animal now. Light flywheel clutch combo is next along with the LSD.
Cant wait for the weekends to come to drive the thing...Absolutely Love It!!
I drove mine without a tune for a while with the IPD and TB. CEL came on a few times but the car adapted in a few hundred miles and it was fine since.
Added Fabspeeds race headers and COBB with Fabspeeds tune, left the stock exhaust on.
Completely transformed the power delivery, the flat spot is gone and its a totally different animal now. Light flywheel clutch combo is next along with the LSD.
Cant wait for the weekends to come to drive the thing...Absolutely Love It!!
#26
Addict
Rennlist Member
Rennlist
Site Sponsor
Rennlist Member
Rennlist
Site Sponsor
Joined: Oct 2002
Posts: 7,427
Likes: 85
From: san jose, california
I drove mine without a tune for a while with the IPD and TB. CEL came on a few times but the car adapted in a few hundred miles and it was fine since.
Added Fabspeeds race headers and COBB with Fabspeeds tune, left the stock exhaust on.
Completely transformed the power delivery, the flat spot is gone and its a totally different animal now. Light flywheel clutch combo is next along with the LSD.
Cant wait for the weekends to come to drive the thing...Absolutely Love It!![/QUOTE]
For sure I wouldn't run/use it without a proper tune. You don't want to run with errors on there and richer than needed You'll love the LSD!
Yep you can.
Some folks do but I wouldn't... Best to have it tuned for the mods/changes. It'll have errors for too much flow etc...
Agreed. Killer app seems to be stock exhaust used in that fashion I think. We have different gear ratios so not everyone needs/wants my crazy ones hah! LWF certainly gives it more of an RS character.
Couple 'o videos:
https://drivetribe.com/p/GWZx84jyTj6...Q3qb24AhEdelYw
And MF:
Added Fabspeeds race headers and COBB with Fabspeeds tune, left the stock exhaust on.
Completely transformed the power delivery, the flat spot is gone and its a totally different animal now. Light flywheel clutch combo is next along with the LSD.
Cant wait for the weekends to come to drive the thing...Absolutely Love It!![/QUOTE]
For sure I wouldn't run/use it without a proper tune. You don't want to run with errors on there and richer than needed You'll love the LSD!
On the exhaust side you could get away with just headers (sport w/ cats) and exhaust and no tune....drives fine and no CELs. I drove it like that for quite some time and later added a custom tune via a COBB AP.....the gains, at least on my car, were considerable and improved even more the mid and top end. For the IPD + TB you will need a Tune for sure.
Looking at their website, looks like they are using cargraphics sport headers. I have fabspeed but no matter, I concur wholeheartedly that sport headers and stock exhaust is THE killer app for this car. More midrange and better sound above 4K rpm with no other effects. It's truly a holy grail mod, zero regrets. I tried adding an exhaust and had to remove it.. one step too far for me.
Another addition which I can't speak highly enough of is the plenum and tb.. where before 5-7k rpm was flat, now there is continued climb.. it may not be a GT3 engine and it may not have the right gearing, but my car now feels utterly sublime. I would probably go for the lighter flywheel but not the new gears.. doesn't make sense from a cost/outcome perspective after reading pete's post on a spyder... maybe a gt4 which sees more trackwork yes?
I wonder about this in California as we have 91 octane gas.
Another addition which I can't speak highly enough of is the plenum and tb.. where before 5-7k rpm was flat, now there is continued climb.. it may not be a GT3 engine and it may not have the right gearing, but my car now feels utterly sublime. I would probably go for the lighter flywheel but not the new gears.. doesn't make sense from a cost/outcome perspective after reading pete's post on a spyder... maybe a gt4 which sees more trackwork yes?
I wonder about this in California as we have 91 octane gas.
https://drivetribe.com/p/GWZx84jyTj6...Q3qb24AhEdelYw
And MF:
#27
Basic Sponsor
Rennlist
Site Sponsor
Rennlist
Site Sponsor
Joined: Nov 2006
Posts: 4,717
Likes: 56
From: Fort Washington, Pa
I drove mine without a tune for a while with the IPD and TB. CEL came on a few times but the car adapted in a few hundred miles and it was fine since.
Added Fabspeeds race headers and COBB with Fabspeeds tune, left the stock exhaust on.
Completely transformed the power delivery, the flat spot is gone and its a totally different animal now. Light flywheel clutch combo is next along with the LSD.
Cant wait for the weekends to come to drive the thing...Absolutely Love It!![/QUOTE]
Very happy to see you are enjoying the combination so far Alex! Looking forward to the driving season next year with you
Added Fabspeeds race headers and COBB with Fabspeeds tune, left the stock exhaust on.
Completely transformed the power delivery, the flat spot is gone and its a totally different animal now. Light flywheel clutch combo is next along with the LSD.
Cant wait for the weekends to come to drive the thing...Absolutely Love It!![/QUOTE]
Very happy to see you are enjoying the combination so far Alex! Looking forward to the driving season next year with you
__________________
Porsche Performance Specialist
John@Fabspeed.com
215-618-9796
Fabspeed Motorsport USA
155 Commerce Drive Fort Washington, PA 19034
www.Fabspeed.com
Porsche Performance Specialist
John@Fabspeed.com
215-618-9796
Fabspeed Motorsport USA
155 Commerce Drive Fort Washington, PA 19034
www.Fabspeed.com