new tune

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01-06-2007, 07:28 PM

sstang

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new tune

I got an SCT tuner from American Muscle (as a gift) and downloaded it to my car. I then noticed a little detonation from 0-2000k rpm, and I had to retard the timing 8* to make it finally stop(or at least where you couldn't hear it). I have heard American Muscle's tunes aren't that great (canned), so would it be beneficial to get a new tune from somewhere else like Brenspeed? I heard I could order a tune for like $25 or so.

01-06-2007, 07:32 PM

H0SS302

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Location: Texas

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RE: new tune

Is that good for your car to bump the timing back that much?

01-06-2007, 07:35 PM

StockD15b

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RE: new tune

dyno tune?

01-06-2007, 07:38 PM

sstang

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RE: new tune

Quote:

Is that good for your car to bump the timing back that much?

Well I don't know if it was 8*, butthe tuneon 0, and I took it back to -8. I thought I read tuners couldn't advance timing enough for detonation to occur, but I don't know.

Quote:

dyno tune?

I don't know of any places to get a dyno tune in the Charlotte area. Plus there wouldn't be a great benefit with my few mods.

01-06-2007, 07:43 PM

Gumby

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RE: new tune

I had a SCT dyno tune with only a MAC catback, and I gained 12 rwhp. It's worth it.

01-06-2007, 08:21 PM

ZW99GT

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Join Date: Nov 2004

Location: Tennessee

Posts: 7,797

RE: new tune

Quote:

ORIGINAL: sstang

I got an SCT tuner from American Muscle (as a gift) and downloaded it to my car. I then noticed a little detonation from 0-2000k rpm, and I had to retard the timing 8* to make it finally stop(or at least where you couldn't hear it). I have heard American Muscle's tunes aren't that great (canned), so would it be beneficial to get a new tune from somewhere else like Brenspeed? I heard I could order a tune for like $25 or so.

You were using a good quality 93 octane right? Like BP/exxon/shell If you were running 93 octane and it was still pinging, replace the stock tune, and send that POS back.

01-06-2007, 08:21 PM

sstang

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Join Date: Jul 2006

Location: NC

Posts: 2,663

RE: new tune

Quote:

I had a SCT dyno tune with only a MAC catback, and I gained 12 rwhp. It's worth it.

Well since I already have a tune installed, it would probably be a less gain for me. Also, the noise came back, so I'm guessing the timing is not the reason. I cannot figure out the reason for this rattling sound coming from the drivers side of the engine only. It happens from around 1500-2000k when I give it partial throttle. Anyone got any ideas on this? I'm thinking about changing the plugs on the driver side...

01-06-2007, 08:33 PM

Gumby

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RE: new tune

Maybe I said it wrong...I had the MAC catback before the tune. After the SCT dyno tune(94 octane) I gained 12 rwhp.

01-06-2007, 09:47 PM

sstang

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RE: new tune

Quote:

Maybe I said it wrong...I had the MAC catback before the tune. After the SCT dyno tune(94 octane) I gained 12 rwhp.

Yeah, but did your car have a "canned" tune before the dyno, or did you buy the SCT and get a dyno tune at the same time?

01-06-2007, 10:03 PM

#10

Gumby

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Posts: 331

RE: new tune

I bought the SCT and got the dyno at the same time.
Doesn't really matter if it came with a canned tune though, you can erase it and program whatever tune you want.

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