FD with TO4B?
02-05-05, 07:39 PM
#1
Eats, Sleeps, Dreams Rotary
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FD with TO4B?
Hey my dad has 2 TO4Bs sitting there brand new because he "was" going to make a twin turbo v8 but backed out afterwards, the kit is complete, and one of my twins on the FD just died. I was thinking of buying a manifold and sticking installing one of these? What do you guys think? Whats the maximum HP I can pull out of these?
02-06-05, 02:14 AM
#2
No it's not Turbo'd
I think 400 is attainable on pump gas, with a mild port... but I think Lag might be an issue, due to it beeing a non Ball Bearing Turbo.... But I don't think I'd expect miracles.... It's a tried and true turbo, do some searching, and I'd say you'll find plenty of dyno sheets, and oppinions 
02-06-05, 09:53 AM
#3
BDC Motorsports
Depends entirely on the TO4B that it is, Fatman. Can you take the compressor housing off and then measure the minor and major (smaller part, larger part) of the compressor wheel with a dial caliper and then post the measurements?
B
B
02-06-05, 12:51 PM
#4
Eats, Sleeps, Dreams Rotary
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Originally Posted by BDC
Depends entirely on the TO4B that it is, Fatman. Can you take the compressor housing off and then measure the minor and major (smaller part, larger part) of the compressor wheel with a dial caliper and then post the measurements?
B
B
Alright I just checked and my dad said the AR is .96 now I need to see about the compressor side.
02-06-05, 10:52 PM
#7
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Originally Posted by widebody2
I'm going to bet the compressor side AR is .6
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02-07-05, 03:18 PM
#8
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I think he means for the compressor side of the turbo. The .96 that you have paperwork for is most likely referring to the hot side of the turbo. Just get us those measurements for the wheel and we can go from there...
02-07-05, 04:17 PM
#9
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Originally Posted by 2a+RoN
I think he means for the compressor side of the turbo. The .96 that you have paperwork for is most likely referring to the hot side of the turbo. Just get us those measurements for the wheel and we can go from there...
02-07-05, 05:22 PM
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a/r can refer to either cold or hot side of the turbo. It is a ratio measuring the area of the tube versus the radius of the housing... its kinda hard to explain, but it is referred for both. It's just that most of the time people are talking about the hot side as that is a big factor in sizing a turbo. The .96 that you said is pretty well suited for a rotary so that aspect of the turbo is good to go 
Last edited by 2a+RoN; 02-07-05 at 05:27 PM.
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