1UZ Swap (w/ future SC)

[enildeR]

My cars been down for a while, for a number of reasons. I decided to pull the trigger on a Toyota 1UZ after seeing someone's thread on r3v. It's a 98 VVT-i, so 290 HP and 300 ft-lbs.

I picked one up of ebay for $1k. Should be here soon. I plan on taking the opportunity to replace the rods and pistons, so I don't have to do it when I put the SC on. Other rebuild stuff to make sure it's sound when I eventually get around to starting it all up.

Here's my problem: transmission.

The reason is I'm planning on buying a 2.3L Whipple SC. From most info online, provided internals are upgraded, it'll more than double power ratings. I want to plan out a gearbox swap now instead of blowing one up while driving, possibly limping home, and then finding a solution.

I've read plenty on people using the W58 for stock, and R154 for FI (both Toyota). The R154s are $$$ on ebay. rob_e30 found the limit of G240's being around 300. I guess I could use the current box I have in stock form until I decided to go with the SC. There's a company that rebuilds R154 so they are better than new with better syncros, micro polishing and other stuffs. But the rebuild requires a core, and the cost is $2800. That gets a clunky gearbox that can easily handle 600 ft-lbs. JCwhitney has some transmissions. The tremec TKO 600 is just about the cost of the R154 rebuild, but I still need to get a bellhousing and possibly adapter place fab'd up, so sourcing the R154 is the cost of the fab work.

Anyone else have ideas on a viable alternative? Are there any BMW gearboxes/transmissions that could be adapted? I liked the idea of going dual clutch, as some of them come with their own computer, but I never saw prices, so I'm wagering that it's probably going to be more than $10k. Should I look for certain make/year salvages to pull from (for dual clutch)?


I'll post pics up and do a bit of detailed build info as I go.

As for other stuff:

I have a Wolf3D from Wolf EMS sitting in my closet, so tuning the standalone and the regular bits that go with that (wideband). Need to plan on an exhaust, as I want it to sound goddamn sweet. Better than the fucking Mustang I saw on the road the other day.

The 1UZ used fluid filled mounts, too. I just don't know dimensions. I'll see about using the new ones I bought for the M42, as the engine is about the same weight. That was the main reason I went with the 1UZ instead of rebuilding the M42: more power but same weight. Just need to fab some brackets. Hopefully the engine has the mount brackets still on the engine. I wanted to see how close they line up.

I have no idea if it's a front, mid, or rear sump, as apparently the engine had different ones for the different vehicles it was in.

I'm contemplating smoothing out the engine bay and doing a wire tuck while everything is out. Currently in the process of cutting out the front support (radiator), as I'm replacing it. Looking in to doing a removable one, as it'll make things easier in the future.

Bought some Hella Euro smilelys couple weeks ago. Planning on using the FX-R projectors with bmwman91's adapters.

[Darky]

That's a v8. They must weigh more than a m42. A g240 will not take that kind of abuse, not for long anyway.
Maybe g260 or g265. G260 is common but not 265 but there are also zf gearboxes from the e36 that will work.
Wolf 3d that's a blast from the past, don't think it will be to smooth with that v8 not enough memory/speed to handle all the throatle positions and cylinders and boost. It will work but not very smoothly!

[enildeR]

That's a v8. They must weigh more than a m42.

The 1UZ is 390lbs. So probably a tad over the M42, as I can only find ~420 for the M42 with G240.
470 with all acc. (1uz), but I only plan on using the alternator, as I am with the M42.
It's an all alloy engine with Nikasil-lined sleeved cylinders. The weight is on par with LS1s. Only it's cheaper. If it's a bit over the M42, I'm fine with it. I took out all the AC crap, and the front end is noticeably higher than the rear. Hopefully, it'll sit back down where it used to be.
 

A g240 will not take that kind of abuse, not for long anyway.

Yeah, I wouldn't expect it to last too long. My 4th syncro was already half way out the door, so I figured it wouldn't matter. Then again, maybe keep it around to rebuild for whatever I put the M42 in.

Maybe g260 or g265. G260 is common but not 265 but there are also zf gearboxes from the e36 that will work.

I'll have to look in to it. I did find mention that the e36 M3 gearbox would work, but I think it was the equivalent of the W58.

Wolf 3d that's a blast from the past, don't think it will be to smooth with that v8 not enough memory/speed to handle all the throatle positions and cylinders and boost. It will work but not very smoothly!

Yeah I guess it's YMMV in this case, but I figure if it was used on 6-cylinder turbo Porsches back in the day that it should work fine on this. If it doesn't work out, I'll keep it around for whatever I land up putting the M42 in, and go with the latest MegaSquirt. I just didn't want to spend any additional money on an EMS.