rollin82

hey i dunno if you guys will help me.. but i was wonder if any of you have or know of anybody whose done a TII or 88 N/A sawp into a 91mazda B-series truck..........

i can handle all the wire and ecu crap but im juts wonder about engine mounts and tranny mount and all that hoopla

i have a b-series truck in need of a motor and have a 88 n/a motor and would like to put it in it....

my dad told me that mazda used to do this swap to the b-series 4x4s and race them..


but i think it would be cool to tow my rx7 with a new school rotary truck on 17s haha

heres my truck if ya interested

rx7amigo

hmmm..

rxrotary2_7

i know Judge Ito has done it. try to find him and send a PM or link to the thread.

rxrotary2_7

i just sent him a PM with a link to the thread. hopefully he can help you out.

Tom93R1

iTrader: (2)

Racing Beat has a B series truck they put a TII motor in. They seem like good people over there, maybe they could also offer some suggestions.

rollin82

coo thx for your help guys..... i Pm'd J ito as well.... and am about to do some emailing to RB.... if any body else has suggestions...lemme know

thx

Judge Ito

Yes guys I have build a few Rx-Trucks like I like to call them. Ask me what excatly you need to know and Ill try to help you step by step. Im currently building myself a nice one. When I finally buy a digi-cam ill host some pics. Mods are 13B FD engine,ported,big turbo haltech e6k. some more toys but I don't want to bore everybody..

Felix Wankel

Its not boring!

Judge Ito

thanks for the pm to this link..

rollin82

hey Ito

what you dod to mount the engine in.. .. custom brackets.... modded orignals.. i havent yet pulled the dead engine out my truck yet to really look into it....

glad to hear im not the only one who wants to do this

thx 4 ur help

Judge Ito

If your looking to make the mazda truck N/A the job is not that simple.(If you can't buy a 1985 gsl-se 13B engine) your going to have to go this other way that I'm about to explaine.the deal with the gsl-se 13B is that it slides right in with little mods. Take the original engine metal mount thats on the chassis and shaved them off. Buy a 1985 Gsl-se 13B engine oil pan and oil pick up.(mazdatrix sells the pan for 80.oo bucks oil pick about 20 dollars) for your 88N/A. Your going to need the same Gsl-se front timing cover. This will allow you to swap front covers and re-use the 4 oil metering lines.You need the gsl-se front timing cover for the purpose of engine mount location. Take the original pick up tranny and remove the bell housing. At this point a second gen. bell housing will interchange with the original truck tranny. Mate the 13B and modified original truck tranny together and get ready to slide them in the engine bay. put back the original tranny in it's factory location with the factory tranny cross member. (your going to re-use the factory drive shaft) at this point you could see where the front of the engine lays. Using the first gen rx7 engine mounts and engine cross member your going to have to modify a nice front engine mount. If after reading all this work your still intrested. Ill keep posting more info. let me know...

rxrotary2_7

hmmm... wouldnt the trany sit lower in the stock location than it should for the rotary? what bell housing? can you use an auto fc housing? should you use a rx4 bellhousing?

rollin82

wow.. thx for the help Ito...

didnt know i could use my stoack tranny...

Q though..
what about the gear ratio differences... will that matter much?

just talked to my dad about the parts ( hes a genuine mazda parts guy.. and has been for mazda 15 years) .. so he can get them no problem ... i would maybe even be able to trade my 88 for a gsl-se engine with one of his rotary hook up guys...

is the reason the gsl-se works easier is because it already has the parts needed for the 88 on it already...?

and would the tranny sit too low?

thx again ,,, and as soon as x-mas breaks starts im getting strted cause im tired of seein my other baby ( the 1st is my 85gsl) sitting on jack stands

Judge Ito

When using the original tranny with the Rx7 second gen. bell housing the tranny falls right back in it's original place. No Rx4 bell housing is needed, just the regular first gen, to second. N/A bell housing with the Mazda Pick up B2000 or B2200 series original gear box.

Judge Ito

Yes thats the reason the gsl-se engine is better. It has the front cover on with the oil pan needed fot this type of conversion. Bolting the original tranny with the rx7 N/A bell housing will allow the tranny to sit perfect and right in the center for the shifter. Basically the tranny is going right back in the factory location.

rxrotary2_7

maybe i am bit confused here. are you talking about a TII bellhousing? or a n/a auto FC bellhousing?

zyounker

Ok, guys this is a easy swap (at least i consider it one)

Pick up a 1st gen front cover, GSL-SE would be the easiest, but a 12a one can be adapted by sloting the mounts.

You will need a GSL-SE oil pan.

Then you change the bell housing on the truck tranny with a 2nd gen rotary bell housing will bolt right to the truck tranny.

Then you drop it in


No, you would not use an AUTO bell housing, for a manual truck you would use a manual 2nd gen bell housing.



basicly info that Judge Ito already said.. so it probably didn't help any


-Zach

rollin82

cool thanks for all the help guys..... starting next tuesday im yanking the 4 pist-on out my truck and removing it from the tranny .... and removing all the EFI crap off the 2nd gen motor......

which brings the next question......

i was thinking of doin a weber conversion....
but if you know of any short cuts to keeping the EFI...

i cant afford a haltech or any after market ECU... (poor)

sooo ya if have any advise on either weber or EFI system fill free to PM me or post here

thx again for all your help Ito

zyounker

Well, you could use a megasquirt for the EFI, and just run a 1st gen distributor system..

As for weber, there are lots of options, i have always liked the 48IDA, but they are getting hard to find. And you will have trouble finding a manifold for a 6 port 13B..


You know, rather then $500-800 on a weber setup, you could pickup a used haltech. Have a much better power curve(depending on tuning) for about the same price.



-Zach

rollin82

i recnetly stumbled upon a old internet document i printed out that i found on a website for v8 conversions second gens.... point being it has nice section on what all the wires are for comming off the stock ECU..

soo what im asking is how difficult would it be to use the stock fuel injection.... ( would i be using the stock truck ecu and the 2nd gen ECU together) cause i will be the first to admit i dont now much about EFI and wiring

the reason i wanted to do the carb conversion.. (whichever one i choose)... the wiring would be much simplier i think.. cause i have very few wires needed on my 85 gsl with 13b4port street port...

impretty sure i could do the carb convo easy.. plus alot faster in getting my truck on the road faster then spending day running wires and cutting and crimping blah blah blah

thx again guys

Tom93R1

iTrader: (2)

I put a 13b from a 2nd gen rx7 into my REPU with a Weber side-draft carb. I used the ignition system from an 83 rx7. As for wires in the engine bay I have very few. There are a couple wires to the alternator, a couple wires to the coils, from there a couple to the dizzy, and then the plug wires. If you eliminate the emissions crap and use a Weber carb that makes for one simple setup.

Felix Wankel

First gen and second gen NA bellhousings are cast with the gearbox as one piece. How do you propose to remove it from the transmission?

TII bellhousings are too large for the NA flywheel.

SmokingClutch

How hard is the TurboII swap compared to the '85 GSL-SE swap?

Judge Ito

take the long 12mm bolts off and the snap ring inside the bell housing.

rxrotary2_7

ok. i am still a bit confused. maybe it is because i have never personaly seen the pickup's trany. what would be wrong with just switching a pickup's tail shaft to a rx trany? it just doesn not compute in my head for some reason. if the truck's trany is that close that the "bellhousing" (even though it is more than a bellhousing) from a 2nd gen bolts right up...then why not just change the tailshaft?
does anyone have a pics so i can visualy see this? maybe that is what i need.