Another stupid "How much boost" question...
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Another stupid "How much boost" question...
Assume the following:
Stock ports, stock turbo.
RB turbo back, FMIC, Microtech LT-8s, 1000cc secondary injectors.
I want to run it on the stock turbo with all that, and get a rough tune in, so that I can go and switch to my bigger turbo. How much boost do you think I can run on the stocker?
Stock ports, stock turbo.
RB turbo back, FMIC, Microtech LT-8s, 1000cc secondary injectors.
I want to run it on the stock turbo with all that, and get a rough tune in, so that I can go and switch to my bigger turbo. How much boost do you think I can run on the stocker?
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12 is the turbos efficiency range after that you are pushing mostly heat. On the TMIC it is a little to hot up there try and stay around 10-12 with that and 12 with a FMIC or 12-14 maybe with some injection.
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#12
I'm a boost creep...
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Originally Posted by iceblue
The last one is very similar to the HT-18
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Originally Posted by iceblue
The inducer/compressor wheel used in the two turbos are well um basically the same.
Originally Posted by NZ_87_TURBO
can anyone tell me the stock inducer/exducer sizes for the stock compressor wheel?
S4 HT-18: 12 blades, 43.8mm inducer, 63.0mm exducer
TO4B: 16 blades, 48.3mm inducer, 69.9mm exducer
So they're well um basically not even close...
This is backed up here:
http://www.turbocharged.com/catalog/comp_wheels.html
Mine appears to be a T04B-S. About the closest match to the stock compressor's dimensions is a T3-55, but it's a little small.
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#17
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Originally Posted by riverzendz
1000cc secondaries on a stock turbo and stock ports? Preparing for a bigger turbo in the near future? Seems like major overkill if not.
Originally Posted by $100T2
Assume the following:
Stock ports, stock turbo.
RB turbo back, FMIC, Microtech LT-8s, 1000cc secondary injectors.
I want to run it on the stock turbo with all that, and get a rough tune in, so that I can go and switch to my bigger turbo. How much boost do you think I can run on the stocker?
Stock ports, stock turbo.
RB turbo back, FMIC, Microtech LT-8s, 1000cc secondary injectors.
I want to run it on the stock turbo with all that, and get a rough tune in, so that I can go and switch to my bigger turbo. How much boost do you think I can run on the stocker?
#18
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you can run 14 to get a rough tune in, but you can only hold like 7 pounds to redline, so you're whole upper range of the powerband will need retuned with the big turbo. i just switched from a stock turbo at around 14psi to a big T4 ITS turbo, and theres a lot of higher rpm and higher boost tuning to be done.
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I Have TO4B-S wheel and a .60 ar housing. what sort of power can i make out of this motor with a street port . i ask to get an idea of what injectors to use.
I was gona go 660 primarys ( as i already have some that i got for free) and 800 secondrys but looking at the map on page 1 it looks like tis max efficency is anywhere upto 14psi ( but i dont know how to read that map.) 14psi is the same as the stock turbo. how much extra air will this move and am i wasting my money and time using this turbo
I was gona go 660 primarys ( as i already have some that i got for free) and 800 secondrys but looking at the map on page 1 it looks like tis max efficency is anywhere upto 14psi ( but i dont know how to read that map.) 14psi is the same as the stock turbo. how much extra air will this move and am i wasting my money and time using this turbo
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