best turbo for 450bhp?
12 March 2007, 09:13 AM
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best turbo for 450bhp?
Simple Api have just rebuilt my 2.5 engine and 6 speed gearbox using forged pistons,steel rods etc.At the moment it has a TD05/06 20G doing about 380 bhp what is the best turbo to reach a comfortable 450/450 .Obviously I want quick spool up and the boost to hold steady up to my 7200 rev limit.
cheers
cheers
12 March 2007, 07:43 PM
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12 March 2007, 10:27 PM
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NB DO NOT GO INTO DAVID'S OFFICE at API HE WILL HYPNOTISE YOU AND MAKE YOU SPEND OODLES OF CASH.
YOU HAVE BEEN WARNED.
PS Perfect service from Martin and the lads on saturday and that Evo battery is the dogs danglies
13 March 2007, 12:55 PM
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Hi David, this is all your blasted fault anyway,you gave me ideas !!!
NB DO NOT GO INTO DAVID'S OFFICE at API HE WILL HYPNOTISE YOU AND MAKE YOU SPEND OODLES OF CASH.
YOU HAVE BEEN WARNED.
PS Perfect service from Martin and the lads on saturday and that Evo battery is the dogs danglies
NB DO NOT GO INTO DAVID'S OFFICE at API HE WILL HYPNOTISE YOU AND MAKE YOU SPEND OODLES OF CASH.
YOU HAVE BEEN WARNED.
PS Perfect service from Martin and the lads on saturday and that Evo battery is the dogs danglies
BUT, I do do it with a smile and a bacon sarnie - that must count for something surely.
David
.
14 March 2007, 03:02 PM
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Having driven a newage, like yours, with a 2.5, and a TD06 49lb i thought it was very impressive. That was untill said owner of the car decided he was fitting a MD321T.
How can i put this, THEY ARE LEAGUES APART!
The 321T hits you so hard, its unbelievable. The torque availability is phenominal compared to the TD06 49, and that is coming from experience of both turbos on the same car and engine, with the same mapper, mapped to the same criteria.
md321t-1a.JPG @ Fotopic.Net
Get a TD06 49 to do that, and i will be impressed.
Last edited by P20SPD; 14 March 2007 at 03:04 PM.
14 March 2007, 08:35 PM
#22
Is the MD321T a twisted or 'regular' installation, and does it have an external waste gate?
from my novice veiwpoint, that graph looks like a very drivable delivery rather than a crude boost build crashing into action.
Am I right?
Finally, is the turbo best optimised for a 2.0 or 2.35 or 2.5? (in theory at least.)
Graham (with a 20g boat anchor?)
from my novice veiwpoint, that graph looks like a very drivable delivery rather than a crude boost build crashing into action.
Am I right?
Finally, is the turbo best optimised for a 2.0 or 2.35 or 2.5? (in theory at least.)
Graham (with a 20g boat anchor?)
14 March 2007, 08:41 PM
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standard postion graham
comes supplied with braided lines etc etc
i got 1 on my ej25 as well
being mapped saturday , can't wait , only running actuator boost at the moment and 6000 rev limit
done 1300 miles now so its time for THE map
comes supplied with braided lines etc etc
i got 1 on my ej25 as well
being mapped saturday , can't wait , only running actuator boost at the moment and 6000 rev limit
done 1300 miles now so its time for THE map
14 March 2007, 08:48 PM
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I have an MD321T on my 2.5 and it saw 452/477 at the last mapping session. Got to be the one to go for with those sort of figures.
14 March 2007, 09:10 PM
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TerryB - 2 litre - 450bhp/420lbft at 1.8bar iirc
Paul Crafts - 2.35 - 460bhp/515lbft at 1.8bar iirc
Alan Bell - 2.5 - 451bhp/484lbft at 1.7bar iirc
The above are my vague recollections of different engines on the 321T, each engine having appropriate extras, but some with more than others.
Graham, Alan's car is so so so easy to drive, it does build nicely in the higher gears (you can come out of 30mph corners in 6th if you wish, with very little effort), however, that same torque profile in lower gears, means it may brake traction fairly easy. The same corner in 3rd or 4th, will have you going sideways 
The 321T sits in the standard position, has an internal wastegate, its literally, plug and play.
Steven
Paul Crafts - 2.35 - 460bhp/515lbft at 1.8bar iirc
Alan Bell - 2.5 - 451bhp/484lbft at 1.7bar iirc
The above are my vague recollections of different engines on the 321T, each engine having appropriate extras, but some with more than others.
Graham, Alan's car is so so so easy to drive, it does build nicely in the higher gears (you can come out of 30mph corners in 6th if you wish, with very little effort), however, that same torque profile in lower gears, means it may brake traction fairly easy. The same corner in 3rd or 4th, will have you going sideways
The 321T sits in the standard position, has an internal wastegate, its literally, plug and play.
Steven