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BPTurbo with Automatic transmission??
Posted: August 5th, 2003, 11:31 pm
by raiden
I want to put BPTurbo(GTR) with Automatic Transmission in to my 1995 Mazda MX-3.Is it possible?Does it has automatic transmission for BPTurbo???

Re: BPTurbo with Automatic transmission??
Posted: August 6th, 2003, 12:14 am
by sw-ontarioguy
if your adding more horsepower adn SPEED to your car, why would you want it to be auto? Dont most people do engine swaps for the potential of racing? With an auto, youre kinda screwing yuorself out of racing.

Re: BPTurbo with Automatic transmission??
Posted: August 6th, 2003, 4:07 am
by torpedan
Dude WTFudge.. dont jump all over someone cause they ask a question.. What if he is freaking handycapped and cant drive a stick.. He could be missin his left leg for all ya know..<p>
To answer the question you could mate a Protege lx tranny to it. You might have to get the transmission beefed up a bit but its much morepossible to beef a automatic than it is a standard.
Re: BPTurbo with Automatic transmission??
Posted: August 6th, 2003, 8:31 am
by Spydie
incidently....for straight line drag...automatics are actually faster.
I read that somewhere....I'll have to remember to look it up again.
Re: BPTurbo with Automatic transmission??
Posted: August 6th, 2003, 10:34 am
by guyaverage
<blockquote><font size="1" face="Verdana, Arial">quote:</font><hr> What if he is freaking handycapped and cant drive a stick.. <hr></blockquote><p>Or maybe he just DOENST WANT to drive a stick. I've driven them for years and just got sick of shifting every 20 seconds, and now all my cars are automatics. I see this on every car forum I lurk on. Every time someone asks a question about an automatic the person gets slammed. Some people just get sick of shifting all the time.<p>If set up with a good torque converter with the proper stall speed for that engine, in many applications an automatic can be made to be just as quick, and sometimes, faster. In an automatic, by torque-braking, a turbo can be made to spool up and build boost before the car is even rolling. Try that with a five speed.
Re: BPTurbo with Automatic transmission??
Posted: August 6th, 2003, 1:35 pm
by DVH
No one can shift as fast as an auto tranny can...

Re: BPTurbo with Automatic transmission??
Posted: August 6th, 2003, 2:12 pm
by marshmallow15
automatic tranny's shift smoother, when beefed up they shift even quicker and are sometimes 30% more effective than stick, used mostly by professional racers because of the smooth shifts and the fact that you don't have to let off on gas when shifting, which results in more constant boost rather than boost going back to 0 and having to build it up again.. but most of the time this is the case of a fixed up tranny from levelten or so.. around 400-600 per upgrade. stick is just a bit better out of the factory, which is why most people prefer it. also with atx, you can beat someone and eat a hamburger at the same time.<p>(finally someone bashing autos get bashed themselves.. no offense to the stick drivers out there though)
Re: BPTurbo with Automatic transmission??
Posted: August 6th, 2003, 4:56 pm
by papa roached
i learned not to knock autos, my grand pa's 68 GTO has a turbo 400, man i never did think a 3 speed could be so fast
Re: BPTurbo with Automatic transmission??
Posted: August 6th, 2003, 4:58 pm
by Custommx3
Just an FYI...
Mazda autos are crap. And expensive to rebuild.
Re: BPTurbo with Automatic transmission??
Posted: August 6th, 2003, 5:21 pm
by Spydie
<blockquote><font size="1" face="Verdana, Arial">quote:</font><hr>Originally posted by Custommx3:
Just an FYI...
Mazda autos are crap. And expensive to rebuild.<hr></blockquote><p>no argument here
so let's be more specific. In GENERAL autos make better drag cars. But get into some autocross or rally....bye
Re: BPTurbo with Automatic transmission??
Posted: August 7th, 2003, 9:42 am
by 92RedMX3
Ok, gotta throw my 2 cents in here. Autos can be much easier to deal with on the track and are normally the tranny of choice for high horsepower, RWD cars. The reason is that the shift is so fast. Now something to do have to point out is the thing about smooth shifting. If you mean smooth shifting like the feel between shifts then you would be sadly mistaken.....Racing apps use shift kits and such that shift so instantly from each gear to the next that it pops you back in your seat and will easily chirp tires. If you mean smooth shift such as it is fast and consistant going from gear to gear your correct. Any REAL drag racer with a th400,th350 etc.... tranny will have a hard shift, if its soft then he has fried most of his clutch packs and will be rebuilding very soon.
Re: BPTurbo with Automatic transmission??
Posted: August 7th, 2003, 12:04 pm
by ryanlindenberg
<blockquote><font size="1" face="Verdana, Arial">quote:</font><hr> In an automatic, by torque-braking, a turbo can be made to spool up and build boost before the car is even rolling. Try that with a five speed.
<hr></blockquote>
couldn't you just hit the gas?<p>and his question is if he can put an auto on the BPT, not if one tranny is better than the other. try to find an auto from a 90-94 protege LX or from a 91-96 ford escort GT. get the driveshafts, torque converter, and flywheel too. i don't know how long the tranny would hold up with a BPT. somebody else probably does though.<p>and for the record i'd take a 5 speed any day.

<p>[ August 07, 2003: Message edited by: ryanlindenberg ]</p>
Re: BPTurbo with Automatic transmission??
Posted: August 7th, 2003, 12:15 pm
by guyaverage
<blockquote><font size="1" face="Verdana, Arial">quote:</font><hr> Just an FYI...
Mazda autos are crap. And expensive to rebuild. <hr></blockquote><p>Mazda automatics will never be known for long life, but they can be brought up to 100% rank average by doing nothing more than adding on an aftermarket cooler. Personally, I pulled one off a Dodge Caravan in the local junkyard, for only $10. Cleaned it up, put on new hoses, spliced it in to the return hose,worked great for $40 less than what Autozone wanted for an even smaller one. And frequent (or at least OCCASIONAL) fluid changes will work wonders. I cringe when I hear people talk bad about their automatics crapping out at 110,000 miles, then you ask them how many times they changed the fluid and filter, "uh, never...." Amazes me, they will change their engine oil/filter every 2500 miles religiously, but go 8 years and 100,000 miles with ever having changed the tranny fluid, and blame it on a bad design when it craps out.<p>Expensive to rebuild? I keep hearing that,on this forum and an Rx7 forum, but I did some google searching on this and the prices dont seem out of line from many others, at least lots cheaper than some of the $2200-2600 horror stories I have read here. Dont know what kind of quality a lot of these places deliver, but it cant be worse than scAamco or the other popular high-profile shops.
Re: BPTurbo with Automatic transmission??
Posted: August 7th, 2003, 12:24 pm
by guyaverage
<blockquote><font size="1" face="Verdana, Arial">quote:</font><hr> couldn't you just hit the gas? <hr></blockquote><p>Actually no, the engine has to be under load to build boost. Freely reving the engine in nuetral wont do anything.<p> <blockquote><font size="1" face="Verdana, Arial">quote:</font><hr> and his question is if he can put an auto on the BPT, not if one tranny is better than the other. <hr></blockquote><p>I know, I really wasnt trying to bash 5 speeds at all. I was just trying to say that some people prefer automatics, and that they dont deserve the bashing they seem to constantly get, and that in SOME cases they can be better. I actually wish I prefered 5 speeds, they are a lot easier to find around here...
Re: BPTurbo with Automatic transmission??
Posted: August 7th, 2003, 12:25 pm
by Custommx3
I agree slightly. Ive changed my tranny fluid/filter about every 35K miles. I dont have a cooler, but I dont drive it hard either. Its lasted so far about 153K miles. On the other hand, on occasion it does slip, But the "Lucus Oil" Tranny treatment works like a champ.