best turbo for cossie ???
20-12-2006, 12:27 PM
#1
best turbo for cossie ???
In performance ford january 2007, there is a test of a roll bearing t34 from turbo dynamics 
very impressive
it had been tested on a 500cv spec motor, and they had compared standard t34 and roll bearing t34.
2300 rpm and 2 bar at full throttle
and 480 hp
what do you think about this turbo ?
very impressive
it had been tested on a 500cv spec motor, and they had compared standard t34 and roll bearing t34.
2300 rpm and 2 bar at full throttle
and 480 hp
what do you think about this turbo ?
20-12-2006, 12:37 PM
#2
DEYTUKURJERBS
looks incredible dont it 
but then again the MD240R looked incredible too when you read the PF tests on that back in the day, and in reality it was a surge-tastic loada crap.
cant wait for someone to try it on a car, as if its as good as it seems, its properly properly good...
but then again the MD240R looked incredible too when you read the PF tests on that back in the day, and in reality it was a surge-tastic loada crap.
cant wait for someone to try it on a car, as if its as good as it seems, its properly properly good...
20-12-2006, 01:10 PM
#4
Surley if its got a roller bearing then why havn't they called it GT34?Doesn't this mean that it has the problems like GT series turbos where if one part failed the whole thing needs to be replaced?
I know from when people where switching from T28's to GT28's it only came in about 300rpm sooner. If someone fits it and i see a graph for it i will stand corrected.
I know from when people where switching from T28's to GT28's it only came in about 300rpm sooner. If someone fits it and i see a graph for it i will stand corrected.
20-12-2006, 01:13 PM
#5
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Looks AMAZING that Turbo!!!
Just mental... But.... I will remain slightly sceptical until it hits a few cars.
Can't wait to see someone try it or a hard used road/track car though
Just mental... But.... I will remain slightly sceptical until it hits a few cars.
Can't wait to see someone try it or a hard used road/track car though
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20-12-2006, 02:02 PM
#10
DEYTUKURJERBS
Originally Posted by Nash
I know from when people where switching from T28's to GT28's it only came in about 300rpm sooner. If someone fits it and i see a graph for it i will stand corrected.
And GT28s have newer spec wheels etc. Every time ive seen just the core changed to BB and identical wheels n housings, nothing changes.
20-12-2006, 02:08 PM
#12
Originally Posted by Stavros
Originally Posted by Nash
I know from when people where switching from T28's to GT28's it only came in about 300rpm sooner. If someone fits it and i see a graph for it i will stand corrected.
And GT28s have newer spec wheels etc. Every time ive seen just the core changed to BB and identical wheels n housings, nothing changes.
When you compare apples with apples (identical turbos with nothing changed other than bearing type), there is absolutely NO difference in spool up (back to back T4 comparison).
Obviously if you compare apples with oranges (bigger housings, different trim wheels etc), unsurprisingly you are going to notice a difference
.Out of curiousity, what sort of friction difference do you think is generated out of running the shaft in a bath of oil compared to roller bearings?
Please be aware that I am NOT slating the turbo, as it did look VERY good. I am just pointing out that roller-bearing cores do not give faster spool-up. This is achieved with different design of turbo (smaller, lighter shaft and more efficient turbine design) and NOTHING to do with the roller bearing core.
20-12-2006, 02:17 PM
#19
Originally Posted by Mike Rainbird
Originally Posted by sygjim
yes, with the same motor 400 hp with t34 and 480 with t34 with bearing
Go and read the article again and NOTE THE TRIM CHANGES FROM TURBO TO TURBO!
yes, it's an hybrid with a gt, so, it's an explanation of the power difference
they named it t34, but it's not a t34, i am agree
20-12-2006, 02:25 PM
#20
Originally Posted by sygjim
Originally Posted by Mike Rainbird
Originally Posted by sygjim
yes, with the same motor 400 hp with t34 and 480 with t34 with bearing
Go and read the article again and NOTE THE TRIM CHANGES FROM TURBO TO TURBO!
yes, it's an hybrid with a gt, so, it's an explanation of the power difference
they named it t34, but it's not a t34, i am agree
.The turbo is very good (by the looks of it), but this is down to it's superier internal components and nothing more magical
.
20-12-2006, 02:49 PM
#24
Originally Posted by Mike Rainbird
Originally Posted by CossieRich
Mike or anyone else
What trim is this "t34" and how is it capable of flowing enough air for 480 bhp. Is there a compressor map for it?
What trim is this "t34" and how is it capable of flowing enough air for 480 bhp. Is there a compressor map for it?
(revenge is SWEET!)
20-12-2006, 02:51 PM
#25
Originally Posted by CossieRich
Originally Posted by Mike Rainbird
Originally Posted by CossieRich
Mike or anyone else
What trim is this "t34" and how is it capable of flowing enough air for 480 bhp. Is there a compressor map for it?
What trim is this "t34" and how is it capable of flowing enough air for 480 bhp. Is there a compressor map for it?
(revenge is SWEET!) . I just treated you with the comtempt you deserve and ignored them .
20-12-2006, 03:08 PM
#26
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Originally Posted by pete mcrash
must have gone to well lane.....lol
thats like the third tme i've heard something sarcastic about well lane?????? anyone care to xplain??
20-12-2006, 03:22 PM
#27
Originally Posted by Mike Rainbird
Originally Posted by CossieRich
Originally Posted by Mike Rainbird
Originally Posted by CossieRich
Mike or anyone else
What trim is this "t34" and how is it capable of flowing enough air for 480 bhp. Is there a compressor map for it?
What trim is this "t34" and how is it capable of flowing enough air for 480 bhp. Is there a compressor map for it?
(revenge is SWEET!) . I just treated you with the comtempt you deserve and ignored them .
20-12-2006, 03:33 PM
#29
saff is working!!!...atm
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Originally Posted by cheeky dog
Originally Posted by pete mcrash
must have gone to well lane.....lol
thats like the third tme i've heard something sarcastic about well lane?????? anyone care to xplain??
20-12-2006, 04:53 PM
#30
PassionFord Post Whore!!
Originally Posted by Stavros
Originally Posted by Nash
I know from when people where switching from T28's to GT28's it only came in about 300rpm sooner. If someone fits it and i see a graph for it i will stand corrected.
And GT28s have newer spec wheels etc. Every time ive seen just the core changed to BB and identical wheels n housings, nothing changes.
i agree with that, Thats why i dont think this test was fair,
ps i think it is a similar if not the same spec MD 240r used in the test.
Heres what i said while decussing the actical with PF Dave
Originally Posted by fiecos dan
Just read the mag,
Good read as always Dave, Nick and the pf team.
but i think the turbo feature is abit miss leading. (not digging, just my opinion)
As what i can see,
-2 different spec turbo's, two different spec actuators on the same map / engine. As this can have boost issue's related to the boost controll, not the Turbo.
To be fair, the turbo spec's would need to be the same, but with just different bearing cores, with the same actuator fitted for bost test's, with the same preload. (wastegate wired closed would of been even better).
i say this, as a T34 are alot less laggy normally. i mean 30+psi before 3300 rpm. when on correct set up, and 380+ bhp on road fuel
Good read as always Dave, Nick and the pf team.
but i think the turbo feature is abit miss leading. (not digging, just my opinion)
As what i can see,
-2 different spec turbo's, two different spec actuators on the same map / engine. As this can have boost issue's related to the boost controll, not the Turbo.
To be fair, the turbo spec's would need to be the same, but with just different bearing cores, with the same actuator fitted for bost test's, with the same preload. (wastegate wired closed would of been even better).
i say this, as a T34 are alot less laggy normally. i mean 30+psi before 3300 rpm. when on correct set up, and 380+ bhp on road fuel
13-01-2007, 12:08 PM
#34
il have 1 fitted to my car for the berkshire rolling road day so il put the results up then
its only a 1.6cvh but was previously running a T34
i only have a previous engine dyno sheet with the standard t34 on tho not a RR print out if that makes alot of differance
spose you cant compare engine dyno sheet to rolling road sheet can you?
its only a 1.6cvh but was previously running a T34
i only have a previous engine dyno sheet with the standard t34 on tho not a RR print out if that makes alot of differance
spose you cant compare engine dyno sheet to rolling road sheet can you?
13-01-2007, 01:38 PM
#35
PassionFord Post Whore!!
Good luck.
but your right, about the engine dyno, and a RR.
ps, heres my answer on the other post in the rst section.
Please do.
But have you boost/rpm checked your T34 @ every 100 rpm, under full load in the car?
and on the same actuator, boost controll, and same full spec and same weather conditions, but just the turbo changed, do the same on the new turbo.
but your right, about the engine dyno, and a RR.
ps, heres my answer on the other post in the rst section.
Originally Posted by Fiecos Dan
Originally Posted by M K
il see how mine differs from standard t34 at the berks rolling road day
Please do.
But have you boost/rpm checked your T34 @ every 100 rpm, under full load in the car?
and on the same actuator, boost controll, and same full spec and same weather conditions, but just the turbo changed, do the same on the new turbo.
13-01-2007, 05:12 PM
#39
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Originally Posted by GARETH T
Originally Posted by BatFink
What is the problem with the MD240R?
Fucking hell!My sides.
Why does it surge alot?
OT I know,but relevant here.
13-01-2007, 05:18 PM
#40
Professional Waffler
i got another one,, but i think ill save it for a rainy day
the problem is that it has a realtive small exhaust housing compared to its compressor sizing! someones tried to lower the boost threshold by using a small exhaust housing and sadly what you end up with is surge!
btw boost threshold is the point in the rev range where the turbo starts to make positive pressure,, most poeple call this lag,, but it isnt,,, lag is the time it takes for the turbo to spin upto speed when in the correct operating rev range
the problem is that it has a realtive small exhaust housing compared to its compressor sizing! someones tried to lower the boost threshold by using a small exhaust housing and sadly what you end up with is surge!
btw boost threshold is the point in the rev range where the turbo starts to make positive pressure,, most poeple call this lag,, but it isnt,,, lag is the time it takes for the turbo to spin upto speed when in the correct operating rev range