Severe Lack of Power !

Sun Sep 25, 2005 7:53 am

Howdi, not too long ago I converted the car from 1.6 to a 2.5 I took the engine gearbox loom ecu etc etc from a family mobile and mated it into my car, all is working ok but I seem to be away down in the power, original sports just poo all over me and its quite frustrating. I take it the sport gearbox and the brain are what would make the difference??

Another thing when I give her a bit it makes serious rattlin and knocking about from under tunnel lift foot off and all goes quiet i suspected the diff to begin with but had it checked and its fine, now thinking along the lines of gearbox mounts or propshaft bearings?

Cheers

Sun Sep 25, 2005 12:37 pm

hi there m8 i should think that rattling about in the tunnel under ur car could be the Donut on the Diff it should be round but overtime they get severly warn causing vibrations and all sorts!
hmmmm do u have a lsd a sports box etc??

Sun Sep 25, 2005 12:39 pm

Are you running an early or late setup mate?
(2 or 3 row ECU connector)

Sun Sep 25, 2005 4:12 pm

H35-IAN wrote:hi there m8 i should think that rattling about in the tunnel under ur car could be the Donut on the Diff it should be round but overtime they get severly warn causing vibrations and all sorts!
hmmmm do u have a lsd a sports box etc??

Have LSD

I went down under an hadda nosey and the gearbox is quite wobbly, its doing my head in as the exhaust is mounted on to it and it is causing quite a bit of thumping off the underside of the car, If i took a pic of my diff would u be able too tell?? How i fix this?

Dont have the sports box no, that one of my downfalls, never used my brain and put it in at the start and had one lying for ages, got good money for it tho, hard come by!

Sun Sep 25, 2005 4:20 pm

Andy325i wrote:Are you running an early or late setup mate?
(2 or 3 row ECU connector)

2 Row Shum Its an 87 engine so i am guessing i am going to have to take ecu from pre 87 sport?

Sun Sep 25, 2005 5:43 pm

not sure if the sport ones are different? I did have when I converted mine to a late car, but god knows where it is now

Andy

Sun Sep 25, 2005 6:35 pm

Was under the impression that sports had identical management to 325i's of the same age.

To be honest mate I just don't think they are that fast, lovely to drive, loads of torque and a fair bit of pull higher up but they are never gonna set the world on fire without some serious tweakage. I have a sport and it is a bit slow IMO.

Mon Sep 26, 2005 11:51 pm

OllieB wrote:Was under the impression that sports had identical management to 325i's of the same age.

To be honest mate I just don't think they are that fast, lovely to drive, loads of torque and a fair bit of pull higher up but they are never gonna set the world on fire without some serious tweakage. I have a sport and it is a bit slow IMO.

Aye I know what ya mean but even still it should have a bit more in it...

Found out the noise, the 3 Bolts connecting the prop too G/Box were bother, 1 was not there, 1 was rung an last one was holdin on by a thread. he also said this happened to him before, I am now thinking that the shaft could be slightly bent and vibrating them loose could this be the case? Also when I looked the other night he had only put in 2 feckin wheel nuts on the rear the spoon!