so this weekend consisted of swapping my M2B4 gearbox for a U2Q7 box in my racecar
I've had the U2Q7 box stripped down and had an M factory 5.15 final drive kit fitted.
Surprisingly the gearbox guy said the internals were mint apart from it needed a new 3rd/4th synchro hub
hopefully this will improve my lap times and make my car more competative in class against the lighter kit cars
Hopefully doing a trackday at Anglesey on thursday to test the box as I'me racing there weekend after next
Posted: Sun May 15, 2016 8:32 pm
by Merlin
I think you will find it a big improvement over the M2B4
Re: fitted U2Q7 gearbox over weekend to racecar
Posted: Sun May 15, 2016 9:00 pm
by W1ggz
Couldn't agree more with that it's a crazy improvement
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Posted: Sun May 15, 2016 9:59 pm
by Thebusofwoe
Im after an atr box soon too. Looking forward to your feedback on it.
Posted: Tue May 17, 2016 7:39 pm
by jasonxr2racer
luckily the box I bought for £150 was in good shape
just needed 3rd/4th synchro hub
Posted: Wed May 18, 2016 11:52 am
by gb-lude
Its a great box.. It did help me alot. Thats a VERY short final drive bro.. your top speed will be rather low.. and you will be changing gear all the time! I was thinking about the 4.64 fd but decided not to.. the ratios are ok on my local track.
Got the same issue.. 3rd and 4th syngro's are on their way out..
I do recommend getting all syngro's upgraded.. they will go bad again...
Im getting a new box build by PAW with a KaaZ diff.. Get this one fixed and sold..
Posted: Wed May 18, 2016 1:07 pm
by Drax
i bet this is savage you stick with the stock u2q7 LSD im guessing? didnt want to upgrade to a Kaaz or MFacory LSD?
Posted: Wed May 18, 2016 1:18 pm
by NafemanNathan
Do have the means to record your next race? I think there's quite a few of us here who'd love to hear you screaming around the track
Posted: Sun Jun 12, 2016 4:42 pm
by jasonxr2racer
Drax wrote:i bet this is savage you stick with the stock u2q7 LSD im guessing? didnt want to upgrade to a Kaaz or MFacory LSD?
Was down to money but the ATR LSD is better than M2B4 lsd. More like a Quaife diff
Posted: Sun Jun 12, 2016 4:46 pm
by jasonxr2racer
Heres the in car from last race at Anglesey.
Mssive brake judder all weekend due to pad material build up on discs
Cost me 2nd place in class
The Citroen I'm chasing is 245bhp and weighs 960kg with driver
you stick with the stock u2q7 LSD im guessing? didnt want to upgrade to a Kaaz or MFacory LSD?