.86 to .64 A/R = :-)
29-12-2007, 12:14 AM
#1
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.86 to .64 A/R = :-)
following from this thread https://passionford.com/forum/viewtopic.php?t=307992
just been out in the car after swapping
from a .86 to .64 hotside housing
and what a transformation
full boost well before 4k ,
feels so much better,
just been out in the car after swapping
from a .86 to .64 hotside housing
and what a transformation
full boost well before 4k ,
feels so much better,
29-12-2007, 12:17 AM
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Originally Posted by martin-reyland
Just need to check the fueling low down now 
will get it mapped as a safety
12-01-2008, 07:58 PM
#6
Originally Posted by marco polo
i think mine has .63 but not external tho
Also, I would definately NOT rely on compensation maps, it's a very bad habit and only takes for your lambda sensor to have a 'moment' and you're looking at a meltdown. Remember that you now have 1.4 bar of boost somewhere in the map where it didn't have 1.4 bar before, so that part of the map may have not even been looked at.
12-01-2008, 08:57 PM
#7
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C - it's a ratio, i know this, which means the physical size could be huge;y different. Is there a large physical difference between the two?
Rick.
Rick.
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12-01-2008, 09:50 PM
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Originally Posted by Christian and Beccy
Originally Posted by mitchrst
Wheres the cheapest place to get one of these turbos ?
12-01-2008, 09:55 PM
#16
Originally Posted by mitchrst
Originally Posted by Christian and Beccy
Originally Posted by mitchrst
Wheres the cheapest place to get one of these turbos ?
I'd expect up to 350bhp from the GT28RS and over 400bhp from the GT2540R personally. As for where is cheapest to get them, that would be importing from the US probably (if you're flukey enough to avoid customs/VAT charges), but should price be your one concern?
12-01-2008, 09:55 PM
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Originally Posted by Charlie Chalk
Originally Posted by Christian and Beccy
Originally Posted by Rick
Ahhhh i thought the C stood for Cunt
[/b]
12-01-2008, 10:01 PM
#23
Originally Posted by Rick
No. Shit answer i'm afraid. You haven't justified your opinion. I'd just give up if i were u
Though, I think my answer was quite informative.
Rick - Have you been drinking??
12-01-2008, 10:08 PM
#24
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Pointless? I beg to differ....
This wll give u a rough idea of flow capacity.
But - you're right, and i forgot that u had a dyno!! Have u done a dyno compare on the same engine and front end?
This wll give u a rough idea of flow capacity.
But - you're right, and i forgot that u had a dyno!! Have u done a dyno compare on the same engine and front end?
12-01-2008, 10:12 PM
#25
Originally Posted by Rick
Pointless? I beg to differ....
This wll give u a rough idea of flow capacity.
But - you're right, and i forgot that u had a dyno!! Have u done a dyno compare on the same engine and front end?
This wll give u a rough idea of flow capacity.
But - you're right, and i forgot that u had a dyno!! Have u done a dyno compare on the same engine and front end?
There is no way that from studying the physical size, you could judge the performance. I have both a 0.64 and a 0.86 A/R T28 housing and externally you couldn't tell the difference. I know how they both perform and how the 0.63 A/R T3 housing performs by comparison.
12-01-2008, 10:24 PM
#26
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As they are internally bored differently
Why questioning is this:
Both housings are ment for the same front end - ie. a turbo that can flow x amount of air. Now u say that the 63 and 64 are really different. one is 25, one is t3. as far as i can tell, this is just bolt pattern, and has little to do with intake area? a ratio of 63 to 64 makes naff all difference if both housings have similar physical dimesnions. you say they are diff - i want to know why
Why questioning is this:
Both housings are ment for the same front end - ie. a turbo that can flow x amount of air. Now u say that the 63 and 64 are really different. one is 25, one is t3. as far as i can tell, this is just bolt pattern, and has little to do with intake area? a ratio of 63 to 64 makes naff all difference if both housings have similar physical dimesnions. you say they are diff - i want to know why
13-01-2008, 05:25 PM
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Originally Posted by Christian and Beccy
I would definately NOT rely on compensation maps, it's a very bad habit and only takes for your lambda sensor to have a 'moment' and you're looking at a meltdown. Remember that you now have 1.4 bar of boost somewhere in the map where it didn't have 1.4 bar before, so that part of the map may have not even been looked at.
just did another spark plug check and they look so perfect,
so much better than in the pic, these have a few thousand
miles on too
.
13-01-2008, 05:50 PM
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Originally Posted by Charlie Chalk
My T28 has a .86 , I hate how laggy it is!
where can I get a .64 from?
where can I get a .64 from?
brand new from atp turbo.
straight bolt on job.
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