need a tranny to hold 450wHP

[se7en]

okay folks, I want to be the first in the 9's running the kl series engine.

the power end of it is easy (relatively speaking) I will run a de with ze? heads and de valetrain, and 20-21psi boost.

running a turbonetics 60-1 t4 .63 a/r making 450-470whp

okay, here's my problem.

the tranny.

I know that I will need tough axles, but the most problem is the launch.

do I have to buy the quaife lsd? is there a more cost effecient lsd that will hold that power?

I read somewhere about welding the diff or something?

also, it doesn't have to last forever, but at least 10 runs for tuning , then I can turn the boost back to a more realistic number

is there straight cut gears available for the g-series trans?

I am aiming for a 1.55-1.7 60 foot time to get the number with 26X15X10.5" drag radials.

I may launch and make the pass with less boost, and use some spray at the top for the runs, I haven't decided yet.

so, any ideas tranny gods?

lets make history

as far as I can tell, 10.80's is as fast as an mx-3 has run in street trim FWD(done by rafi)

and that was a bp.

7

edit: would it help maybe to lower the front and raise the backend? to keep the weight in the front...

[atlantamx3]

as far as I can tell, 10.80's is as fast as an mx-3 has run in street trim FWD(done by rafi)

and that was a bp.

That was not a BP, but a FE3.

[se7en]

oh yeah, that's right...I knew that......my mistake

7

[fieromx3]

450whp will not get u into the 9's

[se7en]

If I can stick off the line, then 450Wheel HP will get me into the 9's.

just for example(I know these things are usually generous):

http://www.race-cars.net/calculators/et_calculator.html

using that link as an example, using 2200lbs car with 450WHP runs 9.88 best case senerio.

I think that if I can stick it I will get close.

ps. I am not just some noob...I have been racing 10-11 sec cars for 8 years now.

so lets see what happens.

back to my original question.....can I get straight cut gears for this tranny? other recommend tranny upgrades?
(g-series specific)

thanks

7

[projectB10]

OK - Check out the following link

http://www.mazdas247.com/forum/showthre ... t=3rd+gear" onclick="window.open(this.href);return false;

The link provides some info on a various options for upgraded gear sets suppled by PAR out of Aussie. Big dollars for a genuine solution If you are serious about your 450wHP goal

[Aston Wards]

I know this may sound random, but have a read through the loooooong TPS thread, KiwiMx3 was building a drag MX3 and posted some info in there...., actually, have a check thru some of his posts, there's tidbits of info everywhere lol! most of his stuff was homemade or custom-made

[se7en]

I did a search on kikimx3, and found nothing.

is that on mx-3.com?? or is that a probetalk or mx6.com person??

[se7en]

nevermind, I found it (kiwi_mx3)

heh.. thanks for the info..



7

[kiwimx3]

custom straight cut gears are made by a company called RPM engineering in auckland
New zealand for the mazda gearbox P.O.A.

first and third gear are the weakest link, a GTX third seems to be the strongest factory gear
so far.

I have bellhousing plates that remove the motormount stress from the gearbox assy which stops
a lot of cracking of the gearbox. my mazspeed lsd redrilled for extra arp bolts seems to be fine
so far.

I currently pull a 1.8 60' with a custom front end and shocks, if i was to run a wheelie bar i could
cut that to a 1.6, jacking the rear does nothing and 1000 lbs springs is scary on a short wheelbase
car in the topend.

Matt.

[se7en]

1.8 60' that's not bad....1.6 is what I will need to run my time...


what E.T. do you get? MPH?

thanks for coming out of retirement eh!!

7

[projectB10]

Interesting - Kiwi_mx3 and Kiwimx3

whats the deal with the user name? Kiwi_mx3 had plenty to contribute (granted - not for a long while) and all of it bloody useful.

So who is Kiwimx3?

[kiwimx3]

currently a best of 12's @ 115mph and thats if i have traction.

My bellhousing is machined 6mm and i have a plate
( ever seen how the v8 motors are mounted in tube chassis )
setup that picks up the front mount and the diff housing
also i have a modified 626 mount mounted to the rear of the
plate and it picks up the rear chassis member that the steering rack
is mounted on.

[kiwimx3]

Interesting - Kiwi_mx3 and Kiwimx3

whats the deal with the user name? Kiwi_mx3 had plenty to contribute (granted - not for a long while) and all of it bloody useful.

So who is Kiwimx3?

Its me matt the same guy, my old account is locked and the only way to get a new one is this.
and to post a answer to the guys questions.

does that answer your question ian?

[projectB10]

Its me matt the same guy, my old account is locked and the only way to get a new one is this.
and to post a answer to the guys questions.

does that answer your question ian?

Welcome back Matt Great to see you back on the forum. You have been away?? Not inside but overseas ?

12's and 115. You have a lot to tell us about.