Good bye Twins hello Single front mount!!!!!!
11-29-2011, 02:45 PM
#61
11-29-2011, 02:50 PM
#62
Sounds like they need to find a new dyno. No dis-respect, but we sell the same turbo since it comes direct from BW. That turbo supports around 115lbs/min MAX with the 87mm turbine wheel. The comp map BW uses is based on the larger 96mm turbine wheel and 1.32A/R housing coupled with that wheel. And to make 1200rwhp you would need about 145lbs/min of air and ~69lbs/min of turbine flow, which the BEST 87mm turbine wheel is done at 45-47lbs/min . A GT55-91 is hanging its tongue out at that lbs/min on that big of a motor. Adverting can not cheat physics.
11-29-2011, 03:19 PM
#64
11-30-2011, 10:37 AM
#66
Sure do....but they are the proprietary maps from BW. So they can not be publicly posted. Give us a shout, we can get you all the info you want as far as flow, PR, S-rpms and Eff% of the wheels.
11-30-2011, 11:07 AM
#67
Here is the billet 82mm public map. Keep in mind that comp wheel flow is WITH the larger 96mm 1.32A/R combo. That comp wheel was originally a KKK part #.
Map is attached.... That is .952 kg/s of flow or 126lbs/min. Or about 1260hp crank WITH the big turbine wheel. The smaller 87mm tuibine wheel limits the flow to about 115lbs/min
Map is attached.... That is .952 kg/s of flow or 126lbs/min. Or about 1260hp crank WITH the big turbine wheel. The smaller 87mm tuibine wheel limits the flow to about 115lbs/min
11-30-2011, 01:46 PM
#68
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I guess Seth said this is a new turbine wheel. Any info on this. I've been doing alot of reading on turbos. Just trying to learn as much as I can
11-30-2011, 01:55 PM
#69
Flows about ~1-2lbs more then the 783 turbine. We have the new 87 turbine available.....they are slightly different radius and taller tip height from what I remember. Hub thickness is still the same. Great turbine wheel, but no where near big enough to support 1200rwhp. 1000rwhp is a stretch on a V8 with a true dyno.
11-30-2011, 03:03 PM
#73
11-30-2011, 03:08 PM
#74
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Right on. So my goal is 9 flat, can we do it with this turbo
Its a 402 with TF 225 heads and 4l80. You can see my old times in my sig. those times are with my old 364cid engine on low boost
Its a 402 with TF 225 heads and 4l80. You can see my old times in my sig. those times are with my old 364cid engine on low boost
11-30-2011, 08:08 PM
#77
Yes 9's can be done. You will run out of turbine side will be your limitation. LS heads just flow a ton of air and the turbines are the ones that are limiting most setups. The new GT91 with the new optional 97mm turbine wheel from testing picked up 75rwhp on a customers setup with nothing else changed. This was at the same boost levels too.
11-30-2011, 08:24 PM
#78
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Yes 9's can be done. You will run out of turbine side will be your limitation. LS heads just flow a ton of air and the turbines are the ones that are limiting most setups. The new GT91 with the new optional 97mm turbine wheel from testing picked up 75rwhp on a customers setup with nothing else changed. This was at the same boost levels too.
11-30-2011, 09:09 PM
#79
