I am looking to put a 3.73 rear end in my 99 GT. I have neither the
space, time or tools to do this myself.
1.) Does anyone have a recommendation of a good performance shop in
the North Atlanta area. By good, I mean someone who knows what they
are doing and won't rip you off with high charges and the like.
2.) Is there anyone in the North Atlanta area that goes to the strip
often and would care to take a newbie with them? I am well behaved
and housebroken. I would prefer to watch a while and get the hang of
what goes on at the strip before taking my GT to run, but the long
range plans are to see what the beastie (and the driver) can do. FYI,
I am 48 and a programmer and in my younger days did quite a bit of
street racing.
3.) Can anyone supply me with the formula to figure the speed/RPM
ratio with different tranny gears/rear end gears and tire sizes?
Since it seems that these questions are asked often in this newsgroup,
I was thinking of writing a quick program where you could plug in the
information and get the answers as to the RPM's at different speeds
with different setups. I want my car to run faster, but I don't want
to be taching 3800 in 5th when I drive long distances on the
interstate at 80! (kills the gas milage!)
Any information would be greatly appeciated.
Ken
99 Laser Red GT Coupe
Bone stock
There is Dugan Racing in Suwanee, or Gene Evans Ford (they are an SVT
dealer and will install FRPP stuff).
Kevin McEvoy
geoff
In article <37DFCBBB...@usit.net>,
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>Hey Ken,
>
>There is Dugan Racing in Suwanee, or Gene Evans Ford (they are an SVT
>dealer and will install FRPP stuff).
>
>Kevin McEvoy
Kevin...thanks for the reply. Do you have personal experience with
either of these places, pro or con?
My dealer said that they would install it, but that it would void my
warranty on the rear-end. Also, they are a bit high on their labor
rates. <g>
I would prefer to let a non-Ford place work on it so it is not in
Ford's computer system as modified.
Ken
Kevin McEvoy
Hey Ken, I had Dugan install a set of FMS 3.73's in my 99GT and they
did do a good job (no gear noise or other problems). They charged me
$189 for the gears and $250 for the install.
I usually go up to Commerce (Atlanta Dragway) on Friday nights for
street car test and tune. If you are interested in going I will be up
there this Friday night at 6:00pm and will probably be there till they
close at 10:30-11:00. If your interested send me an e-mail and we can
hook up at the track.
As for the rpm/gear program there is a good one at this link:
http://www3.corral.net/tech/gearcalc.html
Ron
99 Rio Red GT
K&N
Flowmasters
Tri-Ax Shifter
FMS 3.73's
I just called Dugan and got some prices from them to do the mods I
want. (basically what you have on yours...<g>) Given a second chance,
would you go for the 4.10's instead of the 3.73? A couple of hundred
rpm at 80 doesn't seem to be much to give up for the quicker pull at
low end...
I will drop you an emial and see if we can hook up...I want to see how
it works at the track and get used to it before trying to do it. (I
also want the mods on first)
Thanks for the link to the program! No use in re-inventing the wheel
since this does it all! I have it in my favorites now so I can find
it at will...
Ken
99 Laser Red GT Coupe
Bone Stock
>Hello Ron...thanks for the reply!
>
>I just called Dugan and got some prices from them to do the mods I
>want. (basically what you have on yours...<g>) Given a second chance,
>would you go for the 4.10's instead of the 3.73? A couple of hundred
>rpm at 80 doesn't seem to be much to give up for the quicker pull at
>low end...
>
>I will drop you an emial and see if we can hook up...I want to see how
>it works at the track and get used to it before trying to do it. (I
>also want the mods on first)
>
>Thanks for the link to the program! No use in re-inventing the wheel
>since this does it all! I have it in my favorites now so I can find
>it at will...
>
>Ken
>99 Laser Red GT Coupe
>Bone Stock
Most of what I have read in this newsgroup says to stick with the
3.73's for the GT's and go with the 4.10's in the Cobra's. The DOHC in
the Cobra revs a lot higher then the SOHC and can make better use of
the 4.10's. I am sure you will run across many different opinions on
that though.
I'd take the car to the track before you do the mods and see what kind
of difference they make. The last time I was at the track I didnt have
the gears or shifter installed so I can't wait to see what it will do
now!
Ken
99 Laser Red GT
Bone Stock
I went to Commerce for the first time last week. I am now a drag racing
addict. It's damn near all I think about. The people there are almost all
nice and laidback. THis was nice cuz I was nervous about doing something
stupid my first time. I would suggest going before you get the mods just so
you can get a baseline on your car. I really wish I had.
Jimmy
Ken
99 Laser Red GT
Bone Stock
>3.) Can anyone supply me with the formula to figure the speed/RPM
>ratio with different tranny gears/rear end gears and tire sizes?
>Since it seems that these questions are asked often in this newsgroup,
>I was thinking of writing a quick program where you could plug in the
>information and get the answers as to the RPM's at different speeds
>with different setups.
Well Ken, it looks like you've asked the right questions, as I said.
Anyhow, officially welcome to the group.
As far as the RPM calculator goes, I use the one at www.rin-pinion.com
They give you tire diameters per size too.
Steve
'71 Buick GS 455
'91 Mustang LX 5.0 coupe (For Sale)
http://members.aol.com/SEEverist/index.html
"I'll add that to my threat collection." Harry Callahan
Ken
99 Laser Red GT
Bone Stock
I work at Gene Evans Ford so I can't say that I'm unbiased but wherever you get
the work done make sure you put good parts in and you shouldn't have any
problems. Also remember 3.27 gears are the best offering from Ford so no matter
who does the work your warranty on that part will be voided. Don't let your
dealer misslead you your warranty is only voided on the performance parts and
damage due to failure of those parts. >2.) Is there anyone in the North Atlanta
area that goes to the strip
>often and would care to take a newbie with them?
A group of guys from work go to Dallas almost every friday night. its only an
1/8th mile strip but its close and fun for after work.> I want my car to run
faster, but I don't want
>to be taching 3800 in 5th when I drive long distances on the
>interstate at 80! (kills the gas milage!)
I've tried 3.73's and 4.10s with no noticable change in mileage from the stock
3'27 gears that came in the car. All three setups netted mid 22 M.P.G. overall.
I'm currently running 3.73's.
I had Gene Evans do the install of my 4.10 gears. The job was done on time,
and I have never had any problems. I think it was about $460.00 for the
complete job. It was well worth it. I would recommend Gene Evans to anyone
for performance work.
Mike Luttrell
98 Chrome Yellow Cobra #4857
http://mike.luttrell.com
The only other thing that bothered me about letting a Ford dealer do
the mods was that then the car would show up in Ford's computer system
as modded with performance parts...which might lead to some warranty
hassles later. Is this a valid concern?
Ken
99 Laser Red GT
Bone Stock
Good. You need special tools and know-how for this job. It's best left
to the pros.
> 1.) Does anyone have a recommendation of a good performance shop in
> the North Atlanta area. By good, I mean someone who knows what they
> are doing and won't rip you off with high charges and the like.
Don Bailey in Buford has good prices. He's not a "performance" shop
persay; jerust general automotive. But I've taken my Mustang and my
Grand National to him for heat core replacements.
> 2.) Is there anyone in the North Atlanta area that goes to the strip
> often and would care to take a newbie with them? I am well behaved
> and housebroken. I would prefer to watch a while and get the hang of
> what goes on at the strip before taking my GT to run, but the long
> range plans are to see what the beastie (and the driver) can do. FYI,
> I am 48 and a programmer and in my younger days did quite a bit of
> street racing.
I'm 33, a "computer cleric" (I perform autopsies on unix systems that
have died and resurrect dead ones) for HP, and did my share of street
racing as well. Ive also some experience at the track with my '88 5.0,
but none with the GN. Once I get the GN's knock sorted out, I'll take
it. But I'd be happy to bring you along whether I race or not. Heck,
if you don't want to race your GT, I'll jockey it down the 1320 for you!
:)
> 3.) Can anyone supply me with the formula to figure the speed/RPM
> ratio with different tranny gears/rear end gears and tire sizes?
> Since it seems that these questions are asked often in this newsgroup,
> I was thinking of writing a quick program where you could plug in the
> information and get the answers as to the RPM's at different speeds
> with different setups. I want my car to run faster, but I don't want
> to be taching 3800 in 5th when I drive long distances on the
> interstate at 80! (kills the gas milage!)
I hope http://members.theglobe.com/tlorek/calculators.html has what
you're looking for.
--
David Lyons
Dugan's pretty expensive, and they'll put "Dugan racing" stickers all
over your car (they did mine).
They've got a hell of a nice shop. I get a boner everytime I visit it.
I'd let them do one of their fancy interiors with the gauges and stuff
for my Mustang (if there price was right).
> Hey Ken, I had Dugan install a set of FMS 3.73's in my 99GT and they
> did do a good job (no gear noise or other problems). They charged me
> $189 for the gears and $250 for the install.
> I usually go up to Commerce (Atlanta Dragway) on Friday nights for
> street car test and tune. If you are interested in going I will be up
> there this Friday night at 6:00pm and will probably be there till they
> close at 10:30-11:00. If your interested send me an e-mail and we can
> hook up at the track.
> As for the rpm/gear program there is a good one at this link:
> http://www3.corral.net/tech/gearcalc.html
I might be interested in going. If you two decide to go, let me know.
You can stop by on the way to pick me up - I live between Flowery Branch
and Chestnut Mountian.
>It is a five speed manual. I can't really tell you how the 4.10s' would feel
>with a 4.6L SOHC. I know in with the DOHC, it likes to get the RPMs' up for
>a good launch and maintain it up through the band. I really like the 4.10s',
>and I don't have problems driving in the rain or anything of that nature.
>You will of course have to deal with the higher RPMs' at highway speed, but
>at 70MPH it is not bad.
You mean you can keep it down to 70????? Sheesh, I wish I had your
restraint. No, wait, what am I saying? I think I'll go with the
3.73's and see what happens...I can always step up to the 4.10's
later.
>Service at Gene Evans said exactly what GTROMEJ did before. The warranty is
>only voided on the part itself and any related damage the upgrade could
>cause, like shearing something. I doubt that will hapen unless you start to
>modify the engine. But, that issue would be better adressed by someone in
>the group, other than me, that knows more about what the rear end can take.
Well, it might take some fighting to prove that any particular mod
caused any other problem, and that is what I am trying to avoid.
However, there is fine print in the warranty that will let them get
out of about anything if they feel like it anyway, so maybe it is
worrying over nothing. I am still trying to get a definative answer
as to whether changing the shifter voids the warranty on the tranny.
If so, it is the stupidest clause I ever heard of in a warranty.
I don't plan to mod the engine until I own the beast.