Octane 91 causes SR to knock...eventually?

[steve shadows]

Yes,

Exactly

Just as an FYI, 95% of the cars that come in for Dyno tunes where the owners think their timing is correct it is not, it is actually WAY off.

You must use a timiing light, loosen the CAS and remove the TPS sensor while the car is idling at operating temp (80-90C) to check the actual timing. Then rest it, tighten the cas back down and replace the tps plug.

[dongoesby]

Originally Posted by steve shadows

Yes,

Exactly

Just as an FYI, 95% of the cars that come in for Dyno tunes where the owners think their timing is correct it is not, it is actually WAY off.

You must use a timiing light, loosen the CAS and remove the TPS sensor while the car is idling at operating temp (80-90C) to check the actual timing. Then rest it, tighten the cas back down and replace the tps plug.

thanks Steve, I was thinking to send you a pm on this, but thinks for chiming in.

so when you say yes, which part does it referring to? Octane 91 causes knock, or there is suppose no knock when initial start, or the timing usually self adjusted by ecu?

[fliprayzin240sx]

Originally Posted by dongoesby

thanks Steve, I was thinking to send you a pm on this, but thinks for chiming in.

so when you say yes, which part does it referring to? Octane 91 causes knock, or there is suppose no knock when initial start, or the timing usually self adjusted by ecu?

He's agreeing that almost all SRs on the road have a fucked up base timing. Go ahead and check your timing, make sure its good to go.

[steve shadows]

precisely haha