We recently finished a full build on a customer's 1997 Toyota Supra. One of the many parts in the mix was an SP Quick Spool Valve. From the packaging, instructions to the quality I was throughly impressed. We installed the SP Quick Spool Valve between the Precision 7675 "GT42 Style" with a 1.28 a/r turbine housing and our Induction Performance exhaust manifold.
* The overlay below was done on pump gasoline 93 octane at 18lbs being lite on the tune. The blue lines are with the Quick Spool Valve. The red lines are without the Quick Spool Valve.
What this dyno sheet does
NOT show is partial throttle and transient response. I've driven a lot of 7675 3.0 2JZ's. None respond as well as this one does. Much the less with a 1.28 a/r turbine housing. If I had to make a partial throttle comparison I would compare it to a 6768. I like and approve this product. I will begin offering it to all our customers here at the shop.
BELOW IS THIRD GEAR. BOOST WILL MOVE LOWER INTO THE RPM IN FOURTH GEAR. I WILL TRY TO GET A LOG AT TX2K12.
- 4500RPM 8lbs
- 5000RPM 14lbs
- 5500RPM 26lbs
- 6000RPM 34lbs
- 6500RPM 34lbs
- 9000RPM 34lbs
- 4500RPM 102F
- 5000RPM 102F
- 5500RPM 103F
- 6000RPM 103F
- 6500RPM 106F
- 7000RPM 109F
- 7500RPM 110F
- 8000RPM 111F
- 8500RPM 116F
- 9000RPM 119F