Whats the max can a T34.48 can realistically make?
31-08-2006, 08:45 AM
#5
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I like .48 T34s. Has anyone done any proper back to back comparisons regarding boost threshold and powerband with T34s, just changing housing from .48, .55, .63 and keeping engine identical spec, with the relevant mapping of course.
31-08-2006, 08:55 AM
#6
A 0.63 a/r moves the power band up by 500 rpm (inc peak) - and you REALLY notice the difference (worse response for top end power trade off). On a road car, I would want a 0.48 a/r - on track a 0.63....
I haven't tried a 0.55 a/r in a Sapphire 2wd, so can't comment, but in the Escort with 4wd, it didn't feel that much better than a 0.63a/r (probably due to weight etc).
I haven't tried a 0.55 a/r in a Sapphire 2wd, so can't comment, but in the Escort with 4wd, it didn't feel that much better than a 0.63a/r (probably due to weight etc).
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31-08-2006, 09:08 AM
#8
Mine was running a 34psi spike at 4500 tailing to 26psi by 7000rpm 
.
I never ONCE had a 0.48 a/r fail.
Switching to a 0.63 a/r and running a 35psi spike at 3500-4000rpm tailing to 24psi by 7000rpm (ported head etc), these failed every 3 months
.
The former was on 98RON and the latter on 97RON......
.I never ONCE had a 0.48 a/r fail.
Switching to a 0.63 a/r and running a 35psi spike at 3500-4000rpm tailing to 24psi by 7000rpm (ported head etc), these failed every 3 months
.The former was on 98RON and the latter on 97RON......
31-08-2006, 09:32 AM
#15
My 385bhp spec was as follows:
7.8:1 c/r (achieved using 4x4 psitons with a 2wd head), standard cams, standard head, but 3 angle valves / seats, L8 ECU, 4 x 803s, Pace RS500 intercooler, water injection, Grp A coil, mapping by Ahmed (using multipliers to get the injectors WIDE open). T34 / 0.48 a/r - 360° thrust bearing, 7° cut back exhaust blades.
Did 12.64 quarter at 115mph / 172mph top speed.
7.8:1 c/r (achieved using 4x4 psitons with a 2wd head), standard cams, standard head, but 3 angle valves / seats, L8 ECU, 4 x 803s, Pace RS500 intercooler, water injection, Grp A coil, mapping by Ahmed (using multipliers to get the injectors WIDE open). T34 / 0.48 a/r - 360° thrust bearing, 7° cut back exhaust blades.
Did 12.64 quarter at 115mph / 172mph top speed.
31-08-2006, 09:34 AM
#16
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Originally Posted by Stavros
Anyone know the maximum torque ever wringed out of a T34? And what one?
Over 400 anyhow it seems.
My guess would be a .48 running some kerayzy boost spike?
Over 400 anyhow it seems.
My guess would be a .48 running some kerayzy boost spike?
Running greys live mapped L8 by MSD
31-08-2006, 10:58 AM
#17
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We took our 3dr to a R/R day at Powerstation a couple of months back & that made 388bhp & 479Ilb, with a T34/.48 light blues on a Harvey built engine
31-08-2006, 11:43 AM
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Originally Posted by Mike Rainbird
....................(using multipliers to get the injectors WIDE open)
I know of two Jap car tuners that say they would not use an injector past 90 - 92% for that very reason
31-08-2006, 11:49 AM
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Originally Posted by Moonstone Kev
We took our 3dr to a R/R day at Powerstation a couple of months back & that made 388bhp & 479Ilb, with a T34/.48 light blues on a Harvey built engine
31-08-2006, 12:14 PM
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Originally Posted by Mike Rainbird
My 385bhp spec was as follows:
7.8:1 c/r (achieved using 4x4 psitons with a 2wd head), standard cams, standard head, but 3 angle valves / seats, L8 ECU, 4 x 803s, Pace RS500 intercooler, water injection, Grp A coil, mapping by Ahmed (using multipliers to get the injectors WIDE open). T34 / 0.48 a/r - 360° thrust bearing, 7° cut back exhaust blades.
Did 12.64 quarter at 115mph / 172mph top speed.
7.8:1 c/r (achieved using 4x4 psitons with a 2wd head), standard cams, standard head, but 3 angle valves / seats, L8 ECU, 4 x 803s, Pace RS500 intercooler, water injection, Grp A coil, mapping by Ahmed (using multipliers to get the injectors WIDE open). T34 / 0.48 a/r - 360° thrust bearing, 7° cut back exhaust blades.
Did 12.64 quarter at 115mph / 172mph top speed.
31-08-2006, 12:14 PM
#31
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Mine 3dr was on a .48, peaking @ 33psi holding 28, live mapped by Karl,that was on Greys.
must say it was a fantastic road car, great punch from it, and not one bit of lag
went out in a mates saff with a .63, was a little laggier, but a tadge better top end.........
must say it was a fantastic road car, great punch from it, and not one bit of lag
went out in a mates saff with a .63, was a little laggier, but a tadge better top end.........
31-08-2006, 12:14 PM
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Originally Posted by Mike Rainbird
Car was faultless and as I said, did 172mph. Not bad considering that alleged more powerful cars have struggled to match that, let alone beat it.... 
.
.If light blues were fitted, do you think an extra 10-12 BHP would have been possible?
Just curious - but cant say why
31-08-2006, 12:49 PM
#35
Originally Posted by Weaver
So you were just being a smart arse then?
How did you have your water injection setup? Did you run methanol in the water?
How did you have your water injection setup? Did you run methanol in the water?
With the Pace intercooler being very poor above 25psi, it was almost always running
.
Originally Posted by Porkie
Originally Posted by Mike Rainbird
My 385bhp spec was as follows:
7.8:1 c/r (achieved using 4x4 psitons with a 2wd head), standard cams, standard head, but 3 angle valves / seats, L8 ECU, 4 x 803s, Pace RS500 intercooler, water injection, Grp A coil, mapping by Ahmed (using multipliers to get the injectors WIDE open). T34 / 0.48 a/r - 360° thrust bearing, 7° cut back exhaust blades.
Did 12.64 quarter at 115mph / 172mph top speed.
7.8:1 c/r (achieved using 4x4 psitons with a 2wd head), standard cams, standard head, but 3 angle valves / seats, L8 ECU, 4 x 803s, Pace RS500 intercooler, water injection, Grp A coil, mapping by Ahmed (using multipliers to get the injectors WIDE open). T34 / 0.48 a/r - 360° thrust bearing, 7° cut back exhaust blades.
Did 12.64 quarter at 115mph / 172mph top speed.
.
Originally Posted by Doug Stirling
Originally Posted by Mike Rainbird
Car was faultless and as I said, did 172mph. Not bad considering that alleged more powerful cars have struggled to match that, let alone beat it.... .
.If light blues were fitted, do you think an extra 10-12 BHP would have been possible?
Just curious - but cant say why
Originally Posted by reality
2 deg throttle with 95% DC? Odd!
The Pectel monitor recognises the hex code in the chip that represents the specific duty cycle, so displays this as a figure...
31-08-2006, 01:12 PM
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Originally Posted by Mike Rainbird
Originally Posted by reality
2 deg throttle with 95% DC? Odd!
The Pectel monitor recognises the hex code in the chip that represents the specific duty cycle, so displays this as a figure...
31-08-2006, 01:27 PM
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Originally Posted by reality
.........I mean, under what driving conditions would you ever see the injectors effectively hard-on with practically zero throttle being used? (zero throttle also meaning no boost)..