PDA

View Full Version : SMG race car

Spjuvern
21-01-2011, 04:34 PM
how many of you guys race with the SMG gearbox?

i compete in sweden BMW cup, and iam planing to mount S54 and SMG gearbox in my E36 race car.

what are you guys opinion about the SMG gearbox i a race car?
_Nathan_
21-01-2011, 05:27 PM
I would get a standalone ecu and normal gearbox (5 speed e36 non evo probably) (or Drenth if money allowed) personally.

I still have smg but will get rid of it once I can afford a Drenth, will go to MoTeC (can do you a deal on MoTeC if you want as we are a dealer).

Smg is good but it is heavy, adds complexity, ties you to the oem ecu which may be a pain for you to retrofit to an e36 and is the only part of my car that I don't fully trust.
lawsy
21-01-2011, 09:42 PM
I will echo Nathans thoughts

If you have no other reason than being a lazy fooker, go manual;)
billy-m3cutters
21-01-2011, 10:22 PM
The getrag 5speed is a pretty good box, and it'll serve you nicely with s54 running gear.

Smg might be abit too much to fabricate in an e36 shell.
DuncanR
21-01-2011, 10:30 PM
and is the only part of my car that I don't fully trust. The only part mate ?? ....what about that loose nut behind the steering wheel ?? :smt102
lawsy
21-01-2011, 11:10 PM
The only part mate ?? ....what about that loose nut behind the steering wheel ?? :smt102


Didnt know nathan let you drive it dunc:birdman:
northernjim
21-01-2011, 11:10 PM
The only part mate ?? ....what about that loose nut behind the steering wheel ?? :smt102

:hahaha::hahaha::hahaha::hahaha::thumbs:
Bounce
22-01-2011, 07:31 AM
Didnt know nathan let you drive it dunc:birdman:
:thumbs::thumbs::hahaha:
_Nathan_
22-01-2011, 09:28 AM
lol :thumbs:
Hazy
22-01-2011, 07:07 PM
No no no to SMG for a race car, me and Radders ran them last year in the CSL Cup and junked em for manuals halfway thru the year
Thorney
23-01-2011, 08:59 AM
Have run CSL race car with smg for three years, no problems ever. Have a spare gearbox and never used it, just sat in the workshop.
lawsy
23-01-2011, 10:11 AM
Have run CSL race car with smg for three years, no problems ever. Have a spare gearbox and never used it, just sat in the workshop.

It's not the gearbox that's the issue though, as it's the same gearbox as the manual.

It's the gubbons controlling shifting/clutch etc which CAN be problematic

But as John says, he ran smg with no issues.

BUT with smg there is more to go wrong,

Ultimately the amount of Csl I have been around, it is a reliable product
_Nathan_
23-01-2011, 10:19 AM
I haven't had any issues with mine other than a couple of crunchy downshifts which I suspect are caused by the 4.1fd and me changing down too early. I wouldn't enter a 24h race with it though, if only for the time it takes to bleed the clutch using a computer!

However, I personally think it is madness to add all that weight and complexity to an e36, oem ecu and therefore clocks plus a load of sensors, pump etc, just seems silly.
Hazy
23-01-2011, 11:16 AM
Nath, I think you actually have to USE your car to experience problems mate? ;):gayfight:

Hate to tell you, but the odd crunchy downshift was the start of the end for my gearbox, packed up completely at Brands shortly afterwards.

To the E36 guy.....dont do it, my car with a manual, quickshifter and 4:1 diff was totally transformed middle season. It wasnt till I dumped the SMG that I realized how shit it was!
_Nathan_
23-01-2011, 01:41 PM
Tis a fair point bud! Feel free to sponsor me and I will get out more :)
Hazy
23-01-2011, 03:50 PM
Tis a fair point bud! Feel free to sponsor me and I will get out more :)

Tenner on its way!:thumbs:
shimmy
23-01-2011, 03:55 PM
. It wasnt till I dumped the SMG that I realized how shit it was!

Better late than never :gayfight:
DuncanR
23-01-2011, 03:57 PM
Tenner on its way!:thumbs: Dont forget to send Hazy his change Nath !!:hahaha:
shimmy
23-01-2011, 04:09 PM
Tenner on its way!:thumbs:

thats how much our MX5 are to sponsor for one race (all costs including sandwiches included)
Thorney
24-01-2011, 08:19 AM
Interesting really, the only SMG race cars I've heard of with no issues are all CSL's, all the M3's with SMG's seems to have issues resulting in people swapping them out. There's no technical reason I can see that makes that the case? Certainly agree that adding one to an E36 makes little sense, add a Drenth if you want it the best but race regs might not allow that?
Spjuvern
24-01-2011, 12:21 PM
okey it seams like SMG was not the way to go.

I was looking forward to minimize litle time between accelerate and deaccelerate,
by using the left fot for brake and right for trottle.

I run last sesson S503,2 6speed gearbox, 4,55 rearaxel

Drenth gearbox is nice but will give me wight by +75kg in my class
and that is not worth.