na man, mx7 is sweet for what i want. i dont want big power so it iwll be fine bump any more stories. psixtc good to see the box is holding up, how much did that work cost ya?

low 11's with stock jatco, with a convertor.. There is no way I can see that happening.. I dont think even a low 13 would be possible.. They flare up very badly under boost when stock between gears.. I just dont see it's possible to run that time..

****, i lost 2nd gear giv'n it and i've only got a 3" exhaust everthing else stock

I don't really know what mine is, but I assume it's a non-turbo box with a shift kit, also with a trans cooler. It's been going for 2 years now behind my turbo engine, intercooler, cam, ported dump pipe, 2.5 exhaust, and 10 psi. Hasn't missed a beat. In fact, the money I had put aside for a new gearbox went to rebuilding the engine instead!

if your going to use the n/A box as a streeter and not a drager i say it will last a lot longer! Just hope mine lasts with a transcooler :S Why fork out 3 grand for an auto rebuild when N/A Boxs are next to nothing to buy and piss easy to install!

STOCK rb25de through a std 3L n/a auto lasted 1year but box was stuffed before the 25 got put there so yeah.....

i was running a n/a motor on 10psi, the n/a auto lasted 2 weeks, be for it started slipping.

beleive it morgz.... my na is holding up sweet as... jordy;s sounds like it is too. service them should have no probs any1 else ? Some original photos have not been recovered yet.

NA box - 185rwkw

auto box? any work done to it? does a shift kit make it stronger?

Quote: Originally Posted by david85dc beleive it morgz.... my na is holding up sweet as... jordy;s sounds like it is too. service them should have no probs any1 else ? No.. I dont beleive it.. coz it's simply crap I serviced mine.. and it slipped very very badly at 175rwkw, standard VLT auto.. untouched.. they simply cant handle it. Some original photos have not been recovered yet.

was ur gearbox servied as it should of been over its 18 yr life id say no imagine if u did.... then it would be mint and there would be no reason it couldnt hold it...

Quote: Originally Posted by david85dc was ur gearbox servied as it should of been over its 18 yr life id say no imagine if u did.... then it would be mint and there would be no reason it couldnt hold it... gearbox used on a engine making 150kw at engine... you put 175rwkw through it.. or say 210-220kw at the engine, it wont cope, as it's simply not made for it.. regardless of how well it's maintained

could say the same thing about my mf5... but it is sweet as?

Quote: Originally Posted by ATMO_BT1 could say the same thing about my mf5... but it is sweet as? Yeah maybe.. but if your talking completely stock boxes, that includes clutch, and they wouldn't last long at all behind a mild VLT, considering the whole thing was made for a 130kw odd n/a 3ltr..

yeah 117kw wasn't it? My mf5 has been in the car since i have had it for a year and a half and it was in there for ages before that, sweet as, mf5 is way stronger than the n/a auto tho

morgz what about what duz10's said. thats a top effort

My couses VLT was making approximately 190 rwkws on a stock VLT jatco, with 2800 converter. However he ran a huge air to liquid tranny cooler with a thermo fan on it. Run smooth and tight for about 3-4 years, then started to get a little tired but still changed fairly well when he sold it.

if Ur going to run power through the box i suggest a big cooler or something as the stock box will not handle the extra forces and heat. servicing does include tightening the bands and also replacing the filter, remembering that there is a nut right up top that is almost impossible to get at, recommend taking the throttle bodey out to replace the filter, also there are 2 bands to adjust forward gears and reverse screw them up and u wont have any drive in any gears.....i know i did it to the reverse bands Lucky its out side the pan........

ive got a stock bt1 trans cooler goerge gave me but i havent hook it up to my na box yet. would this allow me to run abit more boost without killing the box? any idea how much?