Ranger Yi

i was reading both the buyers guides version 1 says this

"To check the boost pattern, cruise in 3rd gear at 35. As the road ahead clears, accelerate under wide open throttle. Boost levels should quickly spool to 10 to 12 psi. Just above 4500 rpm, the boost level should drop breifly to approxamitly 8 psi and then slowly build up to 10 psi by redline."

while Version 2 says this

"At or before 3,000 rpm you should see around 10 psi (pounds per square inch, lb/in^2) of boost. At 4500 rpm you should see a quick drop to about 8 psi and an almost instantaneous recovery to 10 psi. It should continue to make 10 psi of boost until close to redline where it may drop a couple of psi. This is what is referred to as a 10-8-10 boost pattern."

So which boost pattern is right?

Mahjik

iTrader: (1)

For a stock car, number 2.

adam c

iTrader: (2)

10-8-10 falling off a bit at higher rpm on a stock car.

Ranger Yi

Since im looking into an rx7 thats slightly modified.. a 10-12 boost pattern should be ok then.. im just getting myself worried for nothing.. hopefully this weekend things go well.

PS... does anyone know where i can get CHEAP Avalanche VS. Stars tickets.. playing in dallas. this weekend? i really want to go to the hockey game..

Mahjik

iTrader: (1)

That's ok depending on the mods of the car (and the complete boost pattern). The 12 PSI may be a spike or it could be where the current owner is running the boost. That's one of those math questions you can't answer as 2 numbers aren't enough to determine a proper boost pattern with the stock sequential turbo system.

Ask in the SOUTH forum:

https://www.rx7club.com/south-rx-7-forum-34/

Ranger Yi

these are the mods on the car

M2 Downpipe
M2 Carbon fiber intake
Greddy catback
Power FC and handheld
turbotimer
Koyo large radiator
R1 right side oil cooler

Mahjik

iTrader: (1)

Like said, you'll have to test out the car to see what the "real" boost pattern is...