BBK == big brake kit
Don't know what BBK is, but... I guess if you don't have any braking issues you don't need to worry. I've always thought you should match HP and braking performance. If you have in the upper hundreds of HP you might want to start thinking about braking weaknesses... But, I guess if it's just being used in street applications you don't need to worry about these things.Originally Posted by Jon K
BBK == big brake kit
Simple answer, run both in tandem XDOriginally Posted by BigKriss
It's not too large - the exhaust housing is a .81 while my holset has to be something to the tune of 1.01 or 1.06 which is much larger. In addition, the physical housing itself is much smaller than the holset which was originally intended for about 10 - 15 liters of diesel exhaust running through it. The Holset has a giant hot side and smaller cold side because of the motors they were placed on producing huge amounts of exhaust but not too much horsepower.Originally Posted by BigKriss
The PT76GTS has a very appropriate sized hot side in comparison to the Holset and has a (very much so) larger compressor side to support the huge horsepower. The .81 housing on the new turbo is said to be very very good with spool especially with the "S" wheel i have in it. Spool will more than likely be BETTER than with the Holset configuration.
Last edited by Jon K; 10-17-2007 at 06:39 AM.
PPF in sweden is a big advocate of this turbo they have seen 1000 rwhp. I am not an innovator with this unit - this is a VERY popular Supra turbo. I was criticized by a lot of the big hp guys for picking a holset without knowing the specs on the unit and I can see the light now - yes the holset served me well but it was not perfect for the application.Originally Posted by BigKriss
This turbo is used a lot by the swedes for their 900 rwhp - 1000 rwhp M50s and such.
It is also the same turbo found on Ulysses (card counter) car @ ICS which dyno 996 rwhp on 2.8L M52. Also used by Cameron (highboostingm3) in his S50B30 Non vanos build that is estimated to be 950+ rwhp when done. These guys are members over at bimmerforums.
Last edited by Jon K; 10-17-2007 at 10:11 AM.
They aren't the cheapest they range from 1400 - 1600 usd
meh