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More Boost After Tune

shotter

By shotter,
in Engines & Forced Induction

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shotter Rising Star

shotter

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Posted

I got my car tuned and because the car started to missfire over 14psi it was tuned at 13psi. I have changed my sparkplugs and fixed up the coilpacks so i want to see if the missfire is still there under higher boost. Now what im wondering is would it be safe to run higher boost with the current tune? The engine has forgies and the turbo is a high flow that i have been told can handle 20psi easy. Could i just watch the knock sensor and if it starts to knock i how it's running to lean? I would like to be able to do this without having to fork out more money on a retune.

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shotter Rising Star

shotter

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I asked for the tune to be done on the highest psi. But it was tuned at 13psi because that was the "safest for the turbo and heat" but he told me he ran it up to 20psi and the ratio's were fine. After that i called him back and asked for the dyno runs and then he decided to tell me that anything over 13psi it had a missfire. The reason why im not running to get it retuned is he stuffed me around and a tune that should have cost $250 cost me over $2000. So im not going back to that workshop. And i went to another workshop and found that they were idiots too. These are both performance workshops. And the computer is std but i have a haltech intercepter connected that was tuned.

femno Grand Master

femno

Posted
Posted

$2000!!!!!!!!!

What area are you in? Others on here can recommend good workshops to go to.

For the safety of your engine you should just go and have it checked for higher boost by someone in the know.

Consider investing in a PowerFC.

H@ME Mentor

H@ME

Posted
Posted

agreed, did not know u was only running a piggy back style ecu go for a pfc they cheap and will handle everything you need. but in general would it hurt to add a couple of psi? i'm only running 10psi off the gate no boost controller at all, i have a manual boost controller..can it hurt to add a few psi? i have an apexi turbo timer which shows hypothetical afr's and mine is always in 10-12 range (meaning lots of fuel yea?) so can it hurt to add some psi? Hame

p.s sorry for hijack!

shotter Rising Star

shotter

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Yea the $2000 is a very long story.... I live in canberra. And i would really like to get a powerFC but they sell so quickly.

But if anyone could recommend someone who can tune a haltech and is anywhere near Canberra please let me know. Or if anyone is selling a PowerFC for a R33 please let me know.

H@ME Mentor

H@ME

Posted
Posted
agreed, did not know u was only running a piggy back style ecu go for a pfc they cheap and will handle everything you need. but in general would it hurt to add a couple of psi? i'm only running 10psi off the gate no boost controller at all, i have a manual boost controller..can it hurt to add a few psi? i have an apexi turbo timer which shows hypothetical afr's and mine is always in 10-12 range (meaning lots of fuel yea?) so can it hurt to add some psi? Hame

p.s sorry for hijack!

anyone?

shotter Rising Star

shotter

Posted
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Posted

Well the missfire is still there. So it must be the ecu cut is coming in at 14psi. How do i get around this without getting an aftermarket ecu? I really wish the dropkick that tuned my car told me about this.

2LV8ETR Mentor

2LV8ETR

Posted
Posted
Well the missfire is still there. So it must be the ecu cut is coming in at 14psi. How do i get around this without getting an aftermarket ecu? I really wish the dropkick that tuned my car told me about this.

Get it chipped

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