[Shotimes] Which MAF is best?

[Timothy Tyner]

I am not saying the ProFlow are junk by any means, I am just saying the Ford
80mm and an LPM can be great and has worked for me.  Yes, Mark's 89 with
slicks (MUCH lighter than my 95 with 96 brakes, SFC's, STB's and my 225 lb
frame:) ) has ran quicker, but it also has more power.  I have yet to see
any GEN II with similar mods and weights run as quick.  All I know is that
my car did not LOSE power with the lpm and 80mm.  Yes, the car has cams in
addition to a BOS I.  It get's to 100 in just over 15 seconds, much quicker
than stock.

Toolman

-------Original Message-------

From: Bill Murray
Date: Monday, November 25, 2002 8:30:56 PM
To: 'Timothy Tyner'
Subject: RE: Re: [Shotimes] Which MAF is best?

Don't you have cams on your 95? Sounds like the test should be done on
your car with the 80 LPM and 50. My friends 91 has run a best of 14.7
with the 55mm in a trashcan cold airbox and dynomax mufflers as the only
mods. Also Mark has run lower than a 14.5 with his 89 NA. The
pro-flows have been dyno proven to have just as good if not better
numbers than a 80&LPM. I haven't heard of a car losing power with a
proflow but I can't say the same about the 80&LPM.

Bill

-----Original Message-----
From: shotimes-admin@autox.team.net
[mailto:shotimes-admin@autox.team.net] On Behalf Of Timothy Tyner
Sent: Monday, November 25, 2002 7:59 PM
To: shotimes@autox.team.net
Subject: Fw: Re: [Shotimes] Which MAF is best?

Well then, here is the challenge I lay down to all SHO owners since it
seems
I am the only one confident in the FORD 80mm and the LPM. Show me a
timeslip from a car with a 55mm or any ProFlow unit and no LPM with a
much
better 1/4 than a 14.5 and I will retract all I say about the LPM and
80mm
MAF (on a full weight NA car of course). I find it hard to believe that
my
car is the ONLY one having success with an LPM and FORD 80mm.

Toolman

-------Original Message-------

From: Darin Lind
Date: Monday, November 25, 2002 6:36:52 PM
To: Shotimes@autox.team.net
Subject: Re: [Shotimes] Which MAF is best?

I agree with ya there Ian. I ran an LPM program specifically for my
nitrous
(less timing, more fuel) on my 90 SHO and what happened, but 4 melted
plugs
due to pre-ignition on the first run. Went back to stock computer and
things
were
better. It's a crap shoot just like you said.

And regarding MAFs and bolt-on mods, LPMs are pretty much a waste too
for WOT power, you only risk losing power. The SHO is already optimally
tuned
@WOT from the factory - fuel, timing, etc. Vadim @ SHO Shop has even
said
this.
Several years ago they made a posting where they took a stock 5-spd SHO,
an
expensive
MOTEC and a dyno for tuning, and the best they could muster was 1 measly
HP
over stock,
by actually LEANING out the fuel curve. And there is no need for an LPM
with any bolt-on
mods, that's what the MAF is for. It detects the additional airflow and
you
get more fuel from the
factory program accordingly.

I once brought my SHO to Don Mallinson's old dynojet, and we got the
following:

stock 55mm = 197hp
ford 80mm + LPM = 195hp
ford 80mm + stock program = 200hp
Don's Pro-M 77mm + stock program = 201-202hp.

The 80mm has a different voltage curve, so the air/fuel ratio should not
be
optimal,
yet with the 'required' LPM 'correction' it ran slower. That is pretty
sorry. I tried another
LPM program with the same result. I've heard similar results from 80mm
MAF
owners.
So I think it's a bad idea to get a MAF that relies on an LPM, get one
of
the Pro-M models...
unless you want to spend some bucks to custom tune it - to probably get
back
to the same
power levels as you would get with the Pro-M + stock computer.

Darin

----- Original Message -----
From: <ianf@eden.rutgers.edu>
To: "Timothy Tyner" <shospeed@bigplanet.com>
Cc: <Shotimes@autox.team.net>
Sent: Monday, November 25, 2002 3:43 PM
Subject: RE: [Shotimes] Which MAF is best?


> I am not sure which turbo SHO that you are referring to. There is one
> that is well known (Jeremy Prine's) and then there are a few other
> project cars out there as well. If I recall correctly, Jeremy has been
> trough a lot of LPM reburns, dyno time and at least one engine.
Quarter
> mile times have nothing to do with safe A/F mixtures, reliabilty via
> tuning and other factors such as drivability, etc. I believe this all
> started because I stated that there might be a connection between poor
> LPM tuning and spun rod bearings due to detonation. I still maintain
my
> views that LPM programming is too much of a crap shoot for the average
> SHO owner who is looking for a plug and play answer to unleash hidden
> horsepower.
>
> Ian
>
>
>
> > When turbo'd SHO's are running 13.1's with only an LPM for tuning
(for
> > years), and when my NA 95 runs 14.5's with only an LPM for tuning
> (for three
> > years and 50k miles, first and only burn), I can not see the need
for
> the
> > Apexi (which is much more than $300 last I checked). Not saying one
> is not
> > in my future, just that the LPM can do wonders if the guy knows what
> he is
> > doing. I am surely not going to remove an LPM to replace it with an
> Apexi,
> > but if I was starting from ground up, I would consider one.
> >
> > Toolman
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