Bike junky
Parking Attendant
Bike Junky
Posts: 7
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posted September 27, 2013 08:18 PM
HP gain from 7lbs to 15lbs boost?
With the Muzzy stage 1 turbo kit and stock motor my 07 14 made 238 HP.
The bike now has 9.5:1 JE turbo pistons, 725 cc injectors, larger fuel rail, 250 LPH pump,
And a vacuum operated 1:1 fuel pressure regulator. What do you think the HP difference
Would be at 7lbs then 15 lbs boost? I'm waiting for a new PC V to arrive because the old one
crapped out. PC is replacing it for free but won't see it till next week.
The motor is fresh with stock rods. The bike has 45k miles with 35k on the turbo kit. Any pointers
Would be appreciated, thanks, and yes this is the old Triumph Guy.
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zx14dave
  
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1badzx12r
Needs a life
Posts: 8321
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posted September 28, 2013 05:28 AM
 Edited By: 1badzx12r on 28 Sep 2013 13:29
238hp @ 7lbs ? + 80hp = 318hp@15lbs OR there about
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http://www.youtube.com/watch?v=S06nIz4scvI
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Bike junky
Parking Attendant
Bike Junky
Posts: 7
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posted September 28, 2013 06:35 AM
Thank you for the input, your studs and ECU helped a lot. When torquing the mains down
Two felt mushy so I installed 10mm x 1.25 Helicoils which felt much better and didn't take the
Dreaded extra 1 1/2 turns to reach specs. The no go gauge bottomed out in the old threads
Plus they looked ratty. Could be the factory used a roll form tap which is stronger but ugly.
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zx14dave
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1badzx12r
Needs a life
Posts: 8321
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posted September 28, 2013 08:03 AM
I had the same issue with treads on a Suzuki. The threads would take the bolt TQ 65lbs APE prostreet studs but when put under a boosted load it would pull in the threads and lift the head and spray coolant out the radiator cap .. that's how bad it was .. I installed heli coils in 6 holes and left the 4 outside bolt holes alone. I had to put 2 heli coils per hole cause I couldn't find long enough heli coils.. another issue I found is the stock crush washers when used under the APE supplied stud nuts will sink into the head bolts hole losing stud TQ . next time you have the head off look at those washers you'll see what i'm talking about .its money well spent on the better APE nuts and harden washers when increasing boost
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http://www.youtube.com/watch?v=S06nIz4scvI
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