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"Lindsey Racing felt that it would be beneficial to retain the ceramic liner if possible so Lindsey Racing has been testing different combinations on the 951 head to try and increase the port velocity without significant loss to the flow numbers. The problem is that the ceramic liner that is inside the exhaust port on the Turbo head cannot be altered, so porting the exhaust cannot be done. There is an alternative and we have discovered what that is. We now have found a combination that the exhaust flows 185 CFM with the velocity increased from a miserable 390 to an impressive 566 FPS! That is a 45% increase in velocity with only a 3% loss in flow rate!
Imagine what will happen to the Turbo when you hit it with hot exhaust gases that are moving so much faster"
I'm NOT concerned with a little loss in flow as I can keep my hybrid BB 52 trim Garrett K26-8 and Bosch inj and pump, keep cup chips w/o a piggyback MAF.
If I spent $5-6k replacing those performance parts for more top end flow, the car would be less likely to sell fast. 951 would be a "DYNO QUEEN TUNER CAR" like your monster 3.0L .
In distant future, I'm looking at Cayman S and their $7k turbo stage 1 kits making 11.9@1/4m & 11.2 on a stroker. I don't want to be stuck with a Monster 3" turbocharged 3.0L 951 30yrs old that won't sell fast with some MAF tuner or $2k MAP with 72lb inj and 3" inlet turbo with some welded custom manifold intake.
+400rwhp on 951 = tranny repairs & head gaskets
Some Cup guys i know call them K26-9 because the hot side is bigger than 1989 stock, as the Cup Chips are diff than 1989 stock. ( PCA Tech, Panorama Mag)
I sat my hybrid next to 3 other K26 and K27, he has a cup car with magnesium wheels.
I also explained that 1989 was same as cup as well, seems hot side wheel is bigger INSIDE i learned.
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