So i finally got the g40 back tonight after nearly 3 months!!
When the gearbox was sent off it turned out to be an 8p one. (i spoke to the previous owner and he said it was just the casing that was 8p. the gearbox was atv)
1. is it possible to have another gearbox casing on the atv gearbox?
2. now the car is back i was driving at 4k rpm and this was at 70mph in 5th.. Before i sent the car for repairs i thought at 70mph it was at a lower rpm.. Could someone please check when out driving.?
Thank you
you can put an atv insides in an 8p casing yeah.
Not sure what rpm=speed in each gear tbh - someone will let you know
pete
A G40 box is something like 21.5 mph per 1000rpm in 5th. You should be doing about 3200 rpm at 70mph. Yours works out as 17.5 mph/1000rpm and top end will be about 115mph at the normal rev limit. Wheel size/speedo/ rev counter accuracy will affect it a bit (but not that much). Most likely cause is a different ratio diff in the box. For a stock G40 rev limit in second gets you to about 57mph. If you are significantly below this the diff is wrong (i.e. all gears are affected not just 5th). The G40 has the lowest diff ratio of the MK3's. Normal Polos need a higher ratio as they haven't got much torque.
so you can't actually get to sixty in second then, i was trying to find this out the other day on a long stretch of road with a beady eye on the speedo, although I think my chip has a raised limiter.
I read somewhere the G60's couldn't which is why they had a 0-60 time very similar to the 16v GTi
i have just got back and done over 300 miles on the box.. it def is not right. i think the rpm is out on all the gears.
looking at the receipt it says crown wheel kit for a 8p box. would this be the culprit?
i have still got the old crown wheel but there are no vw codes on it. not on the output shaft either. is the best way to check is to count teeth?
does anyone know where i could find this info for an atv box?
Just a little update... the crown wheel and main shaft does change the ratio. But this is being sorted out once the atv parts come in from germany.
Very very quick acceleration ... a shorter ratio box than a gt box on a g40!!
I was reading on brake pads and mintex 1144 seem to be good. (reading posts on this forum and others) on ebay item: 190092030627 these are the pads for the g40 and 1144 compound if anyone would like some. I called and checked to make sure they are mintex 1144.