Switzer P800 Porsche 911 Turbo: 800 Horses, No Bucking
#23
02-25-2010 | 03:08 AM
Teamspeed Senior Member
Joined: Feb 2010
Posts: 485
From: Nicosia/North Cyprus
Neil love the rear wing on that TT. Where could I get one for my 997TT?
Cheers
#25
03-01-2010 | 09:18 AM
Teamspeed Senior Member
Joined: Nov 2008
Posts: 307
Couple of comments, questions:
If the standard engine makes around the 480hp on your dyno (which I have seen before on Dynojets ie whp seems to equate to FWHP) then surely the tuned version is also an approximation of FWHP ie your tuned engines make ~700hp (not to be sniffed at
)
Whilst the comments about matching the VTGs low end torque are factually correct from just looking at the dyno sheet and may be correct for a full load run in high gear from lower revs, this does not represent the VTG's party trick which is stabbing the throttle at 2800rpm and getting instant torque, big blowers like yours just can't do that, this is the VTG's forte and can't really be shown on a dyno sheet - this is why Porsche spent a lot of dough developing the tech and it is awesome.
Also in this vein (or vane
) With a decent tune the VTG will have around 600lb/ft at 3000rpm which even at full load takes the big turbo car until 4000rpm to achieve - not to mention the hit of VTG 600lb/ft at 3000rpm !!
In summary, this is changing dramatically the nature of the engine - fast for drag racing but any other sort of track driving, stop start on the loadings and the VTG car will be faster.......... That top end looks like fun however
If the standard engine makes around the 480hp on your dyno (which I have seen before on Dynojets ie whp seems to equate to FWHP) then surely the tuned version is also an approximation of FWHP ie your tuned engines make ~700hp (not to be sniffed at
)Whilst the comments about matching the VTGs low end torque are factually correct from just looking at the dyno sheet and may be correct for a full load run in high gear from lower revs, this does not represent the VTG's party trick which is stabbing the throttle at 2800rpm and getting instant torque, big blowers like yours just can't do that, this is the VTG's forte and can't really be shown on a dyno sheet - this is why Porsche spent a lot of dough developing the tech and it is awesome.
Also in this vein (or vane
) With a decent tune the VTG will have around 600lb/ft at 3000rpm which even at full load takes the big turbo car until 4000rpm to achieve - not to mention the hit of VTG 600lb/ft at 3000rpm !!In summary, this is changing dramatically the nature of the engine - fast for drag racing but any other sort of track driving, stop start on the loadings and the VTG car will be faster.......... That top end looks like fun however
#26
03-01-2010 | 03:04 PM
Couple of comments, questions:
If the standard engine makes around the 480hp on your dyno (which I have seen before on Dynojets ie whp seems to equate to FWHP) then surely the tuned version is also an approximation of FWHP ie your tuned engines make ~700hp (not to be sniffed at )
In summary, this is changing dramatically the nature of the engine - fast for drag racing but any other sort of track driving, stop start on the loadings and the VTG car will be faster.......... That top end looks like fun however
If the standard engine makes around the 480hp on your dyno (which I have seen before on Dynojets ie whp seems to equate to FWHP) then surely the tuned version is also an approximation of FWHP ie your tuned engines make ~700hp (not to be sniffed at
)In summary, this is changing dramatically the nature of the engine - fast for drag racing but any other sort of track driving, stop start on the loadings and the VTG car will be faster.......... That top end looks like fun however
As for your comment that the VTG car will be faster, we've developed this package with input from a number of dedicated trackday enthusiasts, Grand Am drivers, and one or two auto journos, with a linear powerband that's been tailored specifically for roadracing. SO, rather than bench race ourselves into a frenzy, let's get them on the track and see?
All in good fun, of course!
Both looking perfect...
#29
03-02-2010 | 03:55 PM
Teamspeed Senior Member
Joined: Jul 2008
Posts: 326
Couple of comments, questions:
If the standard engine makes around the 480hp on your dyno (which I have seen before on Dynojets ie whp seems to equate to FWHP) then surely the tuned version is also an approximation of FWHP ie your tuned engines make ~700hp (not to be sniffed at )
Whilst the comments about matching the VTGs low end torque are factually correct from just looking at the dyno sheet and may be correct for a full load run in high gear from lower revs, this does not represent the VTG's party trick which is stabbing the throttle at 2800rpm and getting instant torque, big blowers like yours just can't do that, this is the VTG's forte and can't really be shown on a dyno sheet - this is why Porsche spent a lot of dough developing the tech and it is awesome.
Also in this vein (or vane ) With a decent tune the VTG will have around 600lb/ft at 3000rpm which even at full load takes the big turbo car until 4000rpm to achieve - not to mention the hit of VTG 600lb/ft at 3000rpm !!
In summary, this is changing dramatically the nature of the engine - fast for drag racing but any other sort of track driving, stop start on the loadings and the VTG car will be faster.......... That top end looks like fun however
If the standard engine makes around the 480hp on your dyno (which I have seen before on Dynojets ie whp seems to equate to FWHP) then surely the tuned version is also an approximation of FWHP ie your tuned engines make ~700hp (not to be sniffed at
)Whilst the comments about matching the VTGs low end torque are factually correct from just looking at the dyno sheet and may be correct for a full load run in high gear from lower revs, this does not represent the VTG's party trick which is stabbing the throttle at 2800rpm and getting instant torque, big blowers like yours just can't do that, this is the VTG's forte and can't really be shown on a dyno sheet - this is why Porsche spent a lot of dough developing the tech and it is awesome.
Also in this vein (or vane
) With a decent tune the VTG will have around 600lb/ft at 3000rpm which even at full load takes the big turbo car until 4000rpm to achieve - not to mention the hit of VTG 600lb/ft at 3000rpm !!In summary, this is changing dramatically the nature of the engine - fast for drag racing but any other sort of track driving, stop start on the loadings and the VTG car will be faster.......... That top end looks like fun however
On that DYNO you've seen WHP not crank HP..
SPI 700/750 onn dyno on France showed 684 HP and 936 NM on 98 pump with 200 cell cats on...
This package will be much more FUN.... We runned GTR with such turbos and it takes off like VTG off the line... You can see that in our vids...
Last edited by GT RUS; 03-03-2010 at 06:54 AM.
