Hypertech = more engine noise?

menasci

Member

Aug 17, 2003

640

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16

Chandler, AZ

Jan 12, 2004

#1

• Jan 12, 2004

• #1

I used a hypertech on my GT.
When I use the hypertune option the car appears stronger but...
The engine sounds noisier when I accelerate.

We only have 91 octane here in Phoenix
But I dont hear pinging (I don't think).

What could this be?

 

forpit2000gt

Founding Member

Jun 30, 2002

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Columbia, SC

Jan 12, 2004

#2

• Jan 12, 2004

• #2

may be detonation, I would back off the timing and see what it sounds like or find some place to get 93 . I wouldn't drive it long like that .

 

2000GTnoExtras

Founding Member

Apr 2, 2002

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Rocklin

Jan 12, 2004

#3

• Jan 12, 2004

• #3

In CA, we only get 91 too, unless you wanna go way out of the way.

I just use the stock program with 87. If I made say 5 extra HP with the hypertech, it wouldn't be worth the extra coin in gas, IMO.

 

menasci

Member

Aug 17, 2003

640

1

16

Chandler, AZ

Jan 12, 2004

#4

• Jan 12, 2004

• #4

2000GTnoExtras said:

In CA, we only get 91 too, unless you wanna go way out of the way.

I just use the stock program with 87. If I made say 5 extra HP with the hypertech, it wouldn't be worth the extra coin in gas, IMO.

Click to expand...

If I use the stock option then there is no HP gain.
You only get HP gain if you choose the hypertune option.
Other than that, just gear ratio, rev & speed limiter, and tire size.
right?

 

2000GTnoExtras

Founding Member

Apr 2, 2002

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Rocklin

Jan 12, 2004

#5

• Jan 12, 2004

• #5

For the Hypertech, yes, that is my understanding, Hypertune or stock tune. It would probably be a good idea to get it on a dyno and see a) how much power the HyperTune is really giving you, and b) check out your A/F.

IMO, my car runs so well on 87 with the factory tune, I wouldn't get an off the shelf chip (or tune) requiring me to run premium gas unless the gains are very significant.

Just my $.02