Big Thanks To MA DEVELOPMENTS..(NOW WITH GRAPHS)
16-09-2007, 08:43 PM
#81
PassionFord Post Whore!!
The ramp rate is wrong for the car when it was done at RX works as this is shoot 3_R which controls the ramp rate diff than the Western and Motorworx,
Also RH 59 is diff than the RH53 on Petes I think this is the rpm cal for the RR again this will change the rpm graph but I will need to check up on this,Petes was calibrated on the Autronic Rpm scale,
The Important thing is Pete is very happy with the performance now as it is better and he is not saying there is lost TQ.
Mark
Also RH 59 is diff than the RH53 on Petes I think this is the rpm cal for the RR again this will change the rpm graph but I will need to check up on this,Petes was calibrated on the Autronic Rpm scale,
The Important thing is Pete is very happy with the performance now as it is better and he is not saying there is lost TQ.
Mark
17-09-2007, 06:10 AM
#83
saff is working!!!...atm
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think we both need to go up to AVA and have a run on their rollers,they seem to produce full road conditions,but its a kick in the ass off 200 mile for me,nevermind u.........after actually looking at all my graphs i can see that i make full boost a lot sooner on the road....
17-09-2007, 07:51 AM
#84
Originally Posted by Karl
Hi Pete,
Your car will never make more low down power whilst you continue to use the version of T38 you have. I have mapped several cars with your turbo on, and none have made significant power below 4000rpm even on different spec engines.
Regards blaming the cams for low torque, remember they are quite a wild cam and hence inherently better at delivering power higher in the rpm range. Nevertheless when I mapped your car in Jim's ownership it made 390lbf ft at similar boost levels, so its a little low at 350lbf ft.
I'm still not quite sure why you did'nt discuss changing your turbo etc with me before changing your mgmt, but as long as you're happy that's what matters.
Your car will never make more low down power whilst you continue to use the version of T38 you have. I have mapped several cars with your turbo on, and none have made significant power below 4000rpm even on different spec engines.
Regards blaming the cams for low torque, remember they are quite a wild cam and hence inherently better at delivering power higher in the rpm range. Nevertheless when I mapped your car in Jim's ownership it made 390lbf ft at similar boost levels, so its a little low at 350lbf ft.
I'm still not quite sure why you did'nt discuss changing your turbo etc with me before changing your mgmt, but as long as you're happy that's what matters.
I have never seen a Universal Turbos T38 make any more than 360-370lb ft on even an engine dyno that can load the engine to the max, and as Mark has said, pumping loads of boost into the mid-range would do NOTHING, but increase the back-pressure.
If you want more mid-range torque, then fit a normal T34. You will instantly gain 30-40lb ft, but loose 30-40bhp. Alternatively fit a GT30 and then you will see the true potential of Mark's mapping, combined with Karl's engine
.Harvey has been so disappointed with the torque results of the T38, that he is currently experimenting with turbos to get one that actually does sit between a T34 and a T4 - as in one that it actually provides the expected power AND torque. Watch this space
.
17-09-2007, 09:13 AM
#94
Originally Posted by NEIL A
Originally Posted by rapidcossie
A escort cossie made 384 ATW on AVA rollers on saturday with the TT version of the T38.
.
.
Does anyone know how the CR turbos T38 compares to the UT one ??
17-09-2007, 10:08 AM
#96
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So when it comes to me selling my T38 then Mike i'm stuffed 
cus they're SHITE.. 
Seriously though, it drives ALOT smoother now and WHEN it does come on boost it goes VERY well.
I shall be changing though in a few months..
cus they're SHITE.. Seriously though, it drives ALOT smoother now and WHEN it does come on boost it goes VERY well.
I shall be changing though in a few months..
17-09-2007, 10:27 AM
#97
No, they're a very good turbo for making POWER and driving nicely .
You just don't get a big thud of mid-range torque, just a completely linear power curve.
In a 2wd car it will mean more power can be put to the ground without being wasted in wheel-spin, and on a 4x4 it will "help" the gearbox stay in one piece.
.You just don't get a big thud of mid-range torque, just a completely linear power curve
.In a 2wd car it will mean more power can be put to the ground without being wasted in wheel-spin, and on a 4x4 it will "help" the gearbox stay in one piece
.
17-09-2007, 11:53 AM
#98
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Originally Posted by Mike Rainbird
No, they're a very good turbo for making POWER and driving nicely .
You just don't get a big thud of mid-range torque, just a completely linear power curve.
.You just don't get a big thud of mid-range torque, just a completely linear power curve
.
17-09-2007, 02:50 PM
#99
saff is working!!!...atm
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Originally Posted by Mike Rainbird
Originally Posted by Karl
Hi Pete,
Your car will never make more low down power whilst you continue to use the version of T38 you have. I have mapped several cars with your turbo on, and none have made significant power below 4000rpm even on different spec engines.
Regards blaming the cams for low torque, remember they are quite a wild cam and hence inherently better at delivering power higher in the rpm range. Nevertheless when I mapped your car in Jim's ownership it made 390lbf ft at similar boost levels, so its a little low at 350lbf ft.
I'm still not quite sure why you did'nt discuss changing your turbo etc with me before changing your mgmt, but as long as you're happy that's what matters.
Your car will never make more low down power whilst you continue to use the version of T38 you have. I have mapped several cars with your turbo on, and none have made significant power below 4000rpm even on different spec engines.
Regards blaming the cams for low torque, remember they are quite a wild cam and hence inherently better at delivering power higher in the rpm range. Nevertheless when I mapped your car in Jim's ownership it made 390lbf ft at similar boost levels, so its a little low at 350lbf ft.
I'm still not quite sure why you did'nt discuss changing your turbo etc with me before changing your mgmt, but as long as you're happy that's what matters.
I have never seen a Universal Turbos T38 make any more than 360-370lb ft on even an engine dyno that can load the engine to the max, and as Mark has said, pumping loads of boost into the mid-range would do NOTHING, but increase the back-pressure.
If you want more mid-range torque, then fit a normal T34. You will instantly gain 30-40lb ft, but loose 30-40bhp. Alternatively fit a GT30 and then you will see the true potential of Mark's mapping, combined with Karl's engine
.Harvey has been so disappointed with the torque results of the T38, that he is currently experimenting with turbos to get one that actually does sit between a T34 and a T4 - as in one that it actually provides the expected power AND torque. Watch this space
.
17-09-2007, 02:54 PM
#101
saff is working!!!...atm
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Originally Posted by Mike Rainbird
Pete,
As long as YOU'RE happy
.
As long as YOU'RE happy
.
17-09-2007, 07:45 PM
#104
PassionFord Post Troll
In defence of the Universal Turbo's T38........I think it does what it was built to do 
It was always designed as a 400bhp turbo, and was never designed for anything else. It has a beautiful linear torque curve, which is excellent on the road.
It does what it was built for, and if that's not the spec for your driving style or power that your looking for, then go to one of the GT range, or an equivalent.
It was always designed as a 400bhp turbo, and was never designed for anything else. It has a beautiful linear torque curve, which is excellent on the road.It does what it was built for, and if that's not the spec for your driving style or power that your looking for, then go to one of the GT range, or an equivalent.
17-09-2007, 08:08 PM
#105
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Originally Posted by Mike Rainbird
Harvey has been so disappointed with the torque results of the T38, that he is currently experimenting with turbos to get one that actually does sit between a T34 and a T4 - as in one that it actually provides the expected power AND torque. Watch this space .
.
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