Jibs05

1st diff went with the m20b20, launched 1st gear. Probably had too much grip for the motor. tires didn't slip so something else had to give up. had 16x7.5 215 some grippy bridgestones I think? can't remember. 1st gearbox that went in was bought off a guy that said he races e30s, and pulled it out of his race car. I had to buy another since the guy i bought my original manual conversion from sold me the wrong gearbox. It lost 1st gear in a few months.

Whaaaat. That's crazy. I'd really like a short ratio medium case even if it's open. But people want like 450 for an open diff. This is my 2nd G260

I wouldn't weld the small case, i'd keep it for road duties. And get a medium case for track duties. I don't mind swapping diffs, i've had mine out so many times all the bolts come off without much pain! The diff i busted was a 3.64 medium case (from navins old 325i), the diff before was a 3.64 small case. Finding a shorter ratio small case is easier and cheaper than finding a short ratio medium case as well. I get what you're saying, but for the price of medium case lsd diffs it's cheaper to have the free call outs haha. And i'd hate to break an lsd, i think i'd cry haha Im running a G260

That's the spirit, don't let anyone tell you what you can and can't do!

It will all depend on price atm. I dont think im doing anywhere near 240 lb/ft. I'd like a longer ratio for the skid pan/track so i can stay in gear longer. I can't justify dropping 1k+ on an lsd diff, if something cheaper comes up i may consider it. Other than the push on corner entry lock diffs aren't too bad.

or run a piggy back ecu like mapecu3. it will delete your maf anyway.

I think a small case will be fine as long as I dont abuse it

Yes and yes. Haha

since getting my car road legal and stuff, all i've been doing is fixing little things like interior trim, tidying wiring and finding every excuse to take her out for a drive. The exhaust note is spot on at 100kph cruising and in 4th doing 50kph it's pretty quiet. The deep rumble is a sound i'll never get sick of. Its not as bad on gas as i thought it would be, doing pretty much the same milage as my m20 engine (although that motor was never running right). She'll bite if you're too aggressive but if you have quick hands and a firm touch she'll go wherever you want. one of the 1st things was to change the oil (2nd oil change from run in) and put some new (to me) tires. Thanks to Marcus and Richard these were done in a timely fashion A few days later i received a message from Jeff (Jeff e36 on here) asking if i could tag along with him to view an e30 he wanted as a daily. Not being one to turn down a chance to drive my e30 and view another, i asked him when i should pick him up. He bought it. P.s his e36 widebody build should be interesting :pimp: A friend of mine needed a ride home from a party we were at, I was more than happy to oblige. He lives near muriwai. Needless to say, i took the long way home Jeff was kind enough to come along, he has a fancy camera and manages to catch a lot of great shots to capture the reason we do the things we do. Our Car culture. You can follow him on FB or instagram Facebook: https://www.facebook.com/JWphotoNZ Instagram: Instagram: @jw.photography.nz Had spotted a mini meet on the ECC page on facebook, and decided i needed a break from doing assignments. So, out we went again. (Pinched this photo from Nate Teo) A few friends and i went to see a movie (The Martian, good movie). So again. More than happy to. Snapped this photo, and this filter just seemed to work well. The following day we decided a nice short walk through the bush to a waterfall would be a nice way to finish the weekend. So off we went to Kitekite falls. When i 1st bought my e30 i got a cool pic of my wife (Girlfriend at the time) on the bonnet at this lookout near piha. December 14 2012 October 26 2015 now married We had an awesome picnic lunch and a great view. I was really hot after the walk and needed to wash my face. Roy (blusplatt on here) decided he wanted some more permanent memories So we headed back to the e30, jumped in and started our journey home when... The diff decided to call it quits on the uphill section 3mins drive up from piha. Nature of the beast i guess... Waited a few hours for a tow truck, and called Richard (e30spec on here) to pick up the others i had in my car. I decided to catch up on some sleep. And then the tow truck arrived. So now she's in the garage waiting for a new diff. I may just get a small case 4.1 or something to get me going and keep a locked medium case 3.46/3.64 for skid/track days. Hopefully through summer ill be updating more often and attending more track days! Stay tuned!

:thumb: very thorough build man!

so thats a no?

how much do you want for just the evo arms? cheers

Glad i could help

I smell 5 lug... you have a pm btw

The major complication is its an E30, nice car!

I think mild steel would work better for those wanting to weld them in?

man those coils look sexy, if i had the coin... GLWS

also interested in price

The piston sat 1mm below deck in the m50 block, but the cut outs for the valves were a lot smaller than m50 pistons. I did consider machining m50 pistons to suit but for the amount of material I had to remove I decided against it. I didn't think of using m52 pistons though, I didn't have any to measure and compare. Again I should have been more thorough with this build, but you live and learn. 240hp atw would be amazing. I haven't calcualted compression yet. I really should. Weren't you selling pocketed pistons a while back?

Have some AFR readings, Cold start idle Cruising 100kph-ish 5th gear Accelerating in 5th gear (unknown speed) From what i read these are pretty good readings? Makes me think the idle control valve is stuffed because of the bad idle.

I may just wait for ground cams, if im gonna go through the hassle of pulling cams out I may as well make it worth my while. I mounted my ecu in the engine bay and made a plastic cover to shield from heat and water. Easy accessibility Im not sure what the db reading was when I got the lvv cert for the exhaust, he didn't mention it to me. But it passed. I built the exhaust a while ago (after the dyno but about a year ago) magnaflow comes to mind but ill have to have a look to confirm. It would be interesting to see what the chip is, I haven't re-calibrated my wideband but it was reading 14 @ 100kph cruising in 5th roughly 2500rpms. From what I read thats pretty good? I have refrained from opening it up for a while. You dont really need to, at 2000rpm in 2nd it struggles for traction. Fun fun.

I bought the ecu 2nd hand and the chip came with it. If you want me to see what the chip is/where its from i can open up my ecu to have a look. I was getting some custom ground cams, But ill look into that idea. My m50 is a non vanos, hence the dumb as dog sh*t ECU. So do i just use the original cams as what they should look like after I machine them? And since mine is non vanos do i still use the M54 cam? I missed the Coolant temp sensor, from my understanding if it doesn't read anything from it, it wont read from the maf/o2 etc. Ive welded an extra bung in my exhaust, i looked at getting the ecu to read from the wideband and its so much hassle. My exhaust is 3" mandrel bent with two mufflers, 1st and last exhaust ill probably do haha I did read something about this, is the cam too long? Or is it the way the cam chain attaches that needs to be changed?

I bought it from a guy in tauranga. Ill recalibrate my wideband before I give you figures, just to be sure im giving you an accurate reading. But from what ive seen so far its pretty reasonable. Ill put up a break down of WOT, cruise, load. The fail 110kw was done on the factory chip, although I believe it was other factors that I had overlooked while performing the swap the reason why it was sh*t. Doing tests to see if the ecu was powering the o2 sensor (open loop?) Showed me that ever since doing the swap it was in closed loop (I may have them the wrong way around). I had missed connecting the temperature sender for the ecu. Which I think would send the ecu into a sort of "limp mode". Well thats my theory anyway. Factory cams at the moment, id like to get some sort of piggy back before I get cams. A lot of learning to do.

Hmm i haven't heard it pinking (pre detonation?) and the AFRs look ok? But i understand what you are saying, Ive been eyeing up the Mapecu3 for a while, ill just have to save up for a bit. Yep i still have them although they arent 5x120, they are 5x114.

I bought a chip from the states from a company that claimed to have done this build and have the correct fuel maps etc. As far as i could tell using their tune was full enrichment. My wideband would go to 10.5 at WOT which isn't very good, just another mistake i made with this build. Swapping back to a generic chipped ecu made the fueling look much better all round. Im sure some tuning can be done to pull out more power, but until it can idle properly i'm staying away from performance mods. :thumb: