A different differential swap - will it work

[elwesso]

That's what I said. B-Ri must have some sort of hookup. Or is just fond of spouting incorrect information.

So. The price shown on the website is what I'll be paying? How long will a rebuild take? Something that can be done in a day?

LOLS.. A rebuild would probably take a week.. Most of that money goes toward the labor, the parts arent that expensive.

[Haitian_King]

Ahhh. Damn. Without my Q for a week? I can't imagine.

Looks like I might have to do that.

[96Qowner]

That's what I said. B-Ri must have some sort of hookup. Or is just fond of spouting incorrect information.

And others are sometimes too quick to pull the trigger on a false jibe - better to just tell a friend or sumpin. The internet'll getcha when you get too cocky, heheh.

"IMPORTANT NOTE:

Spoke with Joe today, remanufactured transmissions are still $2,200 + shipping less $400 core exchange + shipping.

Wonder what my wife would say with 3 transmisions in crates in the garage?

Modified by maxnix at 10:33 AM 11/27/2007"

zerothread?id=293107

Of course anyone can call Joe and find out for sure.

[Haitian_King]

Shouldn't the "our price" reflect that then?

Sure, anyone can call Joe and find out, but I'm not interested in getting one from him. If I'm going to pay a little more and get a performance transmission instead of a stock one, and not have to worry about shipping, then why not go for it?

[3Q Jay]

However, I have the dreaded slow 2-3 upshift in cooler weather, so I just looked up the old posts in mid '05 by you and 3Q Jay (re4r03a vs. re4r01a valve body - thanks to 96Qowner for the reference ), but the thread quits before I could find out what either of you finally did to solve the problem.

Thanks

John, I bought a new separator plate from IoS, and drilled a couple of oversized holes to aid the 2-3 shift. one (biggest drill-out) was to increase the feed pressure to the high clutch pack. other was to relaese the band. (recall that the 2-3 shift is a combo of the high clutch engaging simultaneous with the band disengaging).

mixed results. it shifts absolutely crisp at mashed WOT 7000 2-3, but the 'around town' 2-3 is actually drawn out. not in the usual way with an overspeed, but actually an 'overbrake'. the high clutch now engages BEFORE the band releases (see vb mod info above). in a similar way, the 4-3 at 2/8-3/8 throttle downshift is delayed as well.

[Jesda]

Maybe he wants to do it because its fun to work on cars. I just bought 2 Q's just because. I don't need 'em, won't be able to use-just because its fun.

Remember when it was fun for you?

It stopped being fun when I started cutting my hands on the Q.

[Q45tech]

They make half a dozen different thin glove types: latex, rubber, cotton, kevlar, metal mesh that are in every professionals tool box.

All part of the $30,000 you spend on tools.

[Rex]

Whenever you have a question about a parts price, call Joe, don't use the website.

Just adding my 2 cents.

AND, get the OEM reman, the performance ones are not going to feel any different in your daily driving, and (as with any "performance part") will most likely have a shorter life span.

[Haitian_King]

Thanks for clearing that up Rex. So an IPT or Level 10 won't be more fun to drive? Light to light races won't be different?

[96Qowner]

Thanks for clearing that up Rex. So an IPT or Level 10 won't be more fun to drive? Light to light races won't be different?

A high stall kit will make a huge difference in that, no matter the transmission.

I want to find a $2500 5AT that'll mate to the VH45, though. To hell with the four gears. I've done some half-hearted Googling, but was never able to find a list of dimensions/sizes for available trannies, etc.

[Haitian_King]

I've been checking for a 5AT for the g50. No luck.

Is it better have the OEM and get the high-stall, or get the whole unit from IPT? I was considering getting a JDM and having them do the high-stall converter and valve body mods.

[elwesso]

I disagree with Rex.. my L10 is a lot better than the OEM trans.. The trans shifts crisp and quick. The thing I like are is the downshifts are quicker... I like mine a lot mroe than a stock one.

It wont be too much harsher (at least mine isnt)...

96Q... ive always wondered if the 5AT (RE5R05A) from the G35/Q45/M45/350Z etc would work on a G50. if the bellhousing bolt pattern on the trans is the same, that would mean you could swap the VH45 bellhousing onto the trans and slap it onto a Q45...

If the G50 torque converter doesnt work, you could probably use the torque converter and possibly flex plate from the G35...

The only thing after that would be to make the electronics work.. I havent looked in a while how the TCU works, but I dont think itd be easy to make it work since you're trying adapt an OBDII computer into OBDI

electronics shouldnt be a big deal but it all matters how the signals what the trans is looking for compares to what the VH gives, you feel me? If its all different then its gonna suck to make it work right.

[96Qowner]

I'm pretty sure Dennis said that the 4AT TCU runs its own show - no help from the ECU (and I'm already OBDII). I'm not as concerned with matching the bolt pattern as I am with making it fit the available space - can always make a plate. Even a different length driveshaft seems doable.

Dunno. I have over 200K on mine and it's shifting well. Maybe by the time I need one, I can figure out a 5AT to replace it.

[mtcookson]

I disagree with Rex.. my L10 is a lot better than the OEM trans.. The trans shifts crisp and quick. The thing I like are is the downshifts are quicker... I like mine a lot mroe than a stock one.

It wont be too much harsher (at least mine isnt)...

96Q... ive always wondered if the 5AT (RE5R05A) from the G35/Q45/M45/350Z etc would work on a G50. if the bellhousing bolt pattern on the trans is the same, that would mean you could swap the VH45 bellhousing onto the trans and slap it onto a Q45...

If the G50 torque converter doesnt work, you could probably use the torque converter and possibly flex plate from the G35...

The only thing after that would be to make the electronics work.. I havent looked in a while how the TCU works, but I dont think itd be easy to make it work since you're trying adapt an OBDII computer into OBDI

electronics shouldnt be a big deal but it all matters how the signals what the trans is looking for compares to what the VH gives, you feel me? If its all different then its gonna suck to make it work right.

I bet you could probably use that PCS controller to control the 5-speed.

[Haitian_King]

Well that settles it. If I'm going to replace the whole thing, I might as well get a Level 10 or an IPT over a reman.

[Q45tech]

I like the $1800 choice [wholesale from Infiniti dealer] better than any option!

[elwesso]

I'm pretty sure Dennis said that the 4AT TCU runs its own show - no help from the ECU (and I'm already OBDII). I'm not as concerned with matching the bolt pattern as I am with making it fit the available space - can always make a plate. Even a different length driveshaft seems doable.

Dunno. I have over 200K on mine and it's shifting well. Maybe by the time I need one, I can figure out a 5AT to replace it.

Same way with the later one (TCU that is)... I dont think the dimensions of the trans are much different, all you'd have to do is ask someone on ebay to measure it for you, or someone in the G35 forum...

Sort of, but it has to accept certain parameters from the engine, namely the most important, TPS voltage. Without the right TPS voltage range the trans will shift goofy.. It does things in intervals of 8 but I couldnt find any reference voltages in the FSM.. Im torn, it wouldnt surprise me if it was different or the same...

[mtcookson]

if the bellhousing bolt pattern on the trans is the same, that would mean you could swap the VH45 bellhousing onto the trans and slap it onto a Q45...

Just looked through the FSM's. The RE5R05A has an 8 bolt bell housing to transmission pattern while the RE4R03A has a 10 bolt pattern.

[Q45tech]

You would have to create a mini CAN data network system [microprocessor running emulations to talk and listen] to create TPS, RPM, Vehicle SPEED and a few other inputs to drive the transmission...............everything comes in and out of transmission as data on a 2 wire shield data line.

http://www.ni.com/can/http://sine.ni.co ... /p...5.pdf

[Haitian_King]

Yeah. But I don't need a 12 pack. Dig?

If it was $1800 for one, I'd take it in a heartbeat. Seeing as I'll have to purchase multiple units to get a pricebreak, it doesn't work.