Sim Posted December 28, 2007 Author Report Share Posted December 28, 2007 also, I'm interested in doing a 5 stud conversion, the fronts can be taken care of in the Hoppers Stoppers brake kit, u can either have them 4 or ford 5 stud, but the rears I'm not sure on. they are R31 disc brakes which are 4 stud, how would i go about changing it to the ford 5 stud like the fronts would be? Quote Link to comment Share on other sites More sharing options...
kangaroosa Posted December 28, 2007 Report Share Posted December 28, 2007 Love the plates. I ordered a set for my KE30 (soon to be 12A) last week. "BRAPPN" How much did the engine rebuild cost? An engine builder I spoke to said he just rebuilt a Turbo 13B BP with dowelled etc (the works) for $7000. But he wouldnt give me a firm figure for a N/A 12A small BP. I'm budgeting on around $5000.....hopefully. Quote Link to comment Share on other sites More sharing options...
Jordan Posted December 28, 2007 Report Share Posted December 28, 2007 Corona/Pug/Hilux conversion could be possible? You'll be replacing the rear diff anyway, so why not swap in a R31 one, discs and all? Â Cheers Jordan Quote Link to comment Share on other sites More sharing options...
Sim Posted December 28, 2007 Author Report Share Posted December 28, 2007 thanks mate, hehe brappn is pretty sweet. who did u speak to about the engine? i spoke to maztech and xtreme rotaries etc, they both said around 6-7g's for the rebuild. i spoke to a mate who rebuilds rotaries from his home, and he said he could do it for a hell of a lot cheaper. i took the stripped block to him and he did all the rebuilding, dowelling, porting, painting it up replacing all the seals etc all that shit for $2500. after iv gotten everything needed for the motor it'll prolly end up being around 6g's for the complete engine. yeh i was toying with the idea of ditching the R31 diff i have n going for a hilux diff. but since the r31 is still in pretty good nick i was hoping to keep it for a little while longer but get the stud pattern changed? Quote Link to comment Share on other sites More sharing options...
Sim Posted December 29, 2007 Author Report Share Posted December 29, 2007 also, is there any way to check whether ur diff has shortened axles or not? without pulling it apart? as the previous owner said the diff had been shortened, i dunno if that was just to fit underneath the rolla or to what extent etc. I'm not really trusting in what he's said now cos of what happened with my motor. anyone know? Quote Link to comment Share on other sites More sharing options...
Jono Posted December 29, 2007 Report Share Posted December 29, 2007 i believe only one side of an r31 diff has to be shortened for use in old corollas. Quote Link to comment Share on other sites More sharing options...
kangaroosa Posted December 29, 2007 Report Share Posted December 29, 2007 (edited) thanks mate, hehe brappn is pretty sweet. who did u speak to about the engine? i spoke to maztech and xtreme rotaries etc, they both said around 6-7g's for the rebuild. i spoke to a mate who rebuilds rotaries from his home, and he said he could do it for a hell of a lot cheaper. i took the stripped block to him and he did all the rebuilding, dowelling, porting, painting it up replacing all the seals etc all that shit for $2500. after iv gotten everything needed for the motor it'll prolly end up being around 6g's for the complete engine.yeh i was toying with the idea of ditching the R31 diff i have n going for a hilux diff. but since the r31 is still in pretty good nick i was hoping to keep it for a little while longer but get the stud pattern changed? I sold my donor car to 'Mister Mazda' wreckers in Carrum. He races a S2 RX7 and builds motors etc as well as running a workshop/wreckers. He is who i got my quote from. One bloke that bought some parts off me recommended 'Rank Rotary'. I had my car tuned there years ago and found them to be ok on that side of things. Apparently the business turned to shit, so they moved location and have fresh faces there now. His 12A BP cost in the ballpark of $5000-$6000 for a full rebuild and port package. I might hit your mate up for a price in future if he is keen? I was told to only go for a small BP job if its just a streeter. Apparently the full BP is a heap thirstier and more unreliable. Â I'm doing the R31 diff conversion in my KE30 (well the workshop is). The diff is in my backyard along with a spare shorter axle. Hopefully just the longer side will be shortened and use the shorter axle to suit. You can't beat the fact thats its the right PCD and disc brakes though. I have an LSD one, but the ratio is 3.8:1.....so not really suited to a rotary, but i'll worry about that in due time. Edited December 29, 2007 by kangaroosa Quote Link to comment Share on other sites More sharing options...
kangaroosa Posted December 29, 2007 Report Share Posted December 29, 2007 also, is there any way to check whether ur diff has shortened axles or not? without pulling it apart? as the previous owner said the diff had been shortened, i dunno if that was just to fit underneath the rolla or to what extent etc. I'm not really trusting in what he's said now cos of what happened with my motor. anyone know? Â Measure the length of your diff from the outside of the wheel mounting plates on the axles. I will measure my unmolestered diff and you should be able to confirm your suspicions. Quote Link to comment Share on other sites More sharing options...
Sim Posted December 29, 2007 Author Report Share Posted December 29, 2007 ok sweet thanks for the info, ill give that a shot when i go check out the car next. my mate works from home so doesn't charge as much as most workshops do, only downside is he's in Sunshine which is a bit of a hike from dandenong if you're keen. I'm sure he'd accomodate you though, he just recently built an extend port 12a for some bloke, had it there when i was there last. yeh i was gonna go for a full bridgy but decided against it mainly due to the fact that they aren't the easiest things to live with for a street car. i ended up going for a Secondary Bridge port, which is basically an extend bridge port, only the secondaries are bridged the primaries are extended. you still get the brap brap as if its a bridgy but it is apparently a hell of a lot more streetable and would still go like stink. ive heard of alot of people going this way instead of full bridgys, alot of people from Maztech hav been going with this option with good results. so it could be a good idea to check that out for your 12A. Quote Link to comment Share on other sites More sharing options...
kangaroosa Posted December 29, 2007 Report Share Posted December 29, 2007 Cool. That method of porting looks to be the winner. The rebuild is a while off yet. The actual grafting of the 12A into my car will hit me hard enough for the time being.....but its a healthy motor so thats the main thing. Quote Link to comment Share on other sites More sharing options...
Sim Posted December 29, 2007 Author Report Share Posted December 29, 2007 yeh fair enough, still gotta sort out mounts etc I'm guessing. you'll beable to hear what the sec bridge porting sounds like once i get my motor up and running, hopefully within the next month or so. Quote Link to comment Share on other sites More sharing options...
kangaroosa Posted December 29, 2007 Report Share Posted December 29, 2007 Yeah, i keep meaning to start my own Project thread so i don't clog up yours. But in short, January the action starts to happen on my car. Make sure to drop me a PM when the rocket is up and running. I'd love to drop in and see/hear it. Quote Link to comment Share on other sites More sharing options...
Sim Posted December 29, 2007 Author Report Share Posted December 29, 2007 haha no worries dude, ill let u know when i get the motor going. will b looking forward in seeing how ur ke30 turns out, are u going oldskool carbie style or mechanical injection? Quote Link to comment Share on other sites More sharing options...
kangaroosa Posted December 29, 2007 Report Share Posted December 29, 2007 (edited) haha no worries dude, ill let u know when i get the motor going. will b looking forward in seeing how ur ke30 turns out, are u going oldskool carbie style or mechanical injection? My engine has a DCOE weber bolted it to. I'll be sticking with that for now. The manifold is in 2 sections, so i can unbolt one section and run an IDA Weber instead which would probably be the better option. My priority is just getting the engine, box and custom tailshaft fitted up to the diff. Then i can work on the other 'details' from there. I like to keep things simple, so carby it is. Edited December 29, 2007 by kangaroosa Quote Link to comment Share on other sites More sharing options...
Sim Posted December 29, 2007 Author Report Share Posted December 29, 2007 sounds good to me dude, iv always like the sound of carbie rotaries, sound tough as. i wouldn't mind building a peripheral ported 13b, 51mm IDA etc and drop it in my white ke20 lol. no fuel injection or anythin like that, just pure oldskool, real petrol guzzler. would be awesome. thats something to think about later on down the track i think. Quote Link to comment Share on other sites More sharing options...
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