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Re: re Re: 2.2 I-5 Mods
what's an "ng" "nf" motor?
TIA Bob Lester
90 80Q...nologies/amp
----------
> From: Smith, Kirby A <kirby.a.smith@lmco.com>
> To: 'OorQue@aol.com'
> Cc: 'Quattrolist' <quattro@audifans.com>
> Subject: re Re: 2.2 I-5 Mods
> Date: Thursday, August 19, 1999 18:26
>
> OorQue@aol.com asserted:
>
> > for a 50% increase in hp you need to spend money. You're either going
> > to do some *serious* engine work and get maybe in the range you want
or
> > swap in a turbo motor.
>
> Or swap in an NF or NG motor, add a K&N air filter, a free-flowing
exhaust
> system and advance the ignition timing by 6-8 degrees ... stock, these
> motors
> put out 130hp and 140 ft/lbs of torque and with the above mods, you
should
> pick up another 15-20hp. It's a bolt-in proposition and there's no turbo
> lag, either. I'll bet the above can be done for less than $1500 total
and
> if
> you do it in stages, the original transplant shouldn't run more than
> $750-1000, less if you can find a parts car and buy it complete.
> #######
>
> I can support the idea that a better exhaust provides a few extra horses;
> there was a detectable improvement in acceleration over stock with my
Stebro
> exhaust.
>
> I doubt that the airflow restriction at the intake is more than a few
> percent of that in the exhaust, considering the different mass flows.
The
> impovement here, even with cold shielding, should be minimal.
>
> I would be curious how you expect to change the ignition timing. AFAIK,
the
> NG uses a flywheel sensor to set timing in concert with the ignition ecu.
> Changing it would seem to require either an expensive mechanical
revision,
> or expensive software revision. I have heard of chips claiming 10 or so
> more horses.
>
> Kirby A. Smith New Hampshire USA
> 1988 90q Titanium gray, 182 kmi
> 1988 90q Stone gray, 187 kmi
> 1988 90q Stone gray, 180 kmi - parts car
> 1995 S6 Pearl effect, 82 kmi
>
>
>