got dyno results help
21-04-2009, 05:28 PM
#1
saffy cossie yes
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got dyno results help
hi i got my cossie back yesterday and it read just under 300bhp and 315lb torque ,,,i noticed it the boost cimbed up to 4250 revs the went flat till 5600 the just dropped straight down .........is this correct or is something wrong here 
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21-04-2009, 08:08 PM
#15
no, not at all, it just means you turbo has made its maximum power earlier, so there is little point reving her much higher as you wont make any more power,
you can see the graph is on the down before he backed off
is it on a t3? or a t34?
you can see the graph is on the down before he backed off
is it on a t3? or a t34?
Last edited by JTECH James; 21-04-2009 at 08:09 PM.
21-04-2009, 08:08 PM
#16
saffy cossie yes
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sorry im not to sure i cant tell but like a mug the bloke said it was stage 3 and there are dyno printouts for 364bhp so i assumed it was a t34 or higher and i fell for it
21-04-2009, 08:42 PM
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hi james it says 0.63 if its 313 at the flywheel thats les at the wheels isnt it ...i probably sound stupid but i dont know anything about mechanics but have laways wanted and loved cossies
21-04-2009, 08:46 PM
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If that's a .63 housing start saving!!
Mine made only 336 bhp on .63 last penultimate time it was out, and failed last wknd.
Know how you're feeling dude, its gutting to know a bill is round the corner, and your pride nad joy is poorly.
Take it as an opportunity to get a st escos or spaced 4x4 inlet and internally gated GT30 - that's what I'm doing and will see you well past 360 bhp!
Mine made only 336 bhp on .63 last penultimate time it was out, and failed last wknd.
Know how you're feeling dude, its gutting to know a bill is round the corner, and your pride nad joy is poorly.
Take it as an opportunity to get a st escos or spaced 4x4 inlet and internally gated GT30 - that's what I'm doing and will see you well past 360 bhp!
Last edited by bigchez; 21-04-2009 at 08:47 PM.
21-04-2009, 08:46 PM
#36
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thanks james your help has been second to none i very much appreciate it mate regards matt ......hopefully its nothing expensive wrong but you live and learn i suppose
21-04-2009, 08:52 PM
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I'm no expert at all, I'm a happy cheque book mechanic. 
However the graph isn't smooth and 313 bhp at the fly is poor for a t34.63. You need to find a tuner you like and trust and ask them to have a look. If you're lucky it may be poor set up/boost leak/weak actuator or something and be relatively cheap to fix.
Or you could be unlucky like me, as my turbo shat its guts on Sat so the car's now off the road for most of the summer.
Hope its cheap for you mate.
However the graph isn't smooth and 313 bhp at the fly is poor for a t34.63. You need to find a tuner you like and trust and ask them to have a look. If you're lucky it may be poor set up/boost leak/weak actuator or something and be relatively cheap to fix.
Or you could be unlucky like me, as my turbo shat its guts on Sat so the car's now off the road for most of the summer.
Hope its cheap for you mate.