mk1its

Lol it'll be interesting to hear if the 6sp makes it any worse of better fly..... It does kinda stop it being family friendly.... Not that the supra ever was to a degree.... I thought a standard or stage 2 CC for the 6sp was good enough to handle lots of power...?

Manage to get under there and reconnect the pipes; the under tray has a heck of a lot of screws; that was the most time consuming part but I guess it keeps all the crap off the engine. I've picked up a hard pipe SMIC kit so that'll be going on; most the rubber pipes have started blistering and are rock solid........

Goo to know Pedro, thanks......I was guessing the diff would also need to be changed. I've still got the auto TT diff right now and it seems OK, perhaps a little too short i.e the gears could be longer.....could I fit a 6sp diff now?

I was Matt, had the w58 done a month ago.....I'm hating the stage 4 clutch..... ....It cost me £2.5k in total (labour and parts) and a part of me regrets it.....perhaps if the clutch was smoother......?

And doesn't the r154 shifter in an akward position due to the strange extension angles? - - - Updated - - - Thats surprises me.....think I need to find a dealer with one for a test drive.....then complete a gearbox swop within an hour! :D

The R154's are supposed to be a bit 'rustic' though aren't they? And I'd def prefer a 6th gear for motorway driving....

Jeez, 9k.....I didn't realise they could handle 1000bhp.....shame there's no in-between .......400bhpish w58 to 1000bhp v160/161....

Thought just popped in, why are these v160/161 gearboxes so bloody expensive.....a used engine can be had for less! Is it as simple as availability?

Thats good to know. It does worry me ping off too hard (lol that just sounds wrong) with the w58 gearbox....

Bugger, I was kinda hoping the run in period on my stage 4 competition Clutch would see the judder dissapear. Its quite embarrassing when people are staring at your car as it makes the whole car judder! Guess I'll have to put up with it until a v160 kit comes along. I'm avoiding the r154 as apparently it's a bit 'rustic'!

Hmm well I'd agree but I want to go single piece by piece whilst retaining the w58. I could be wrong but if I go single at 450bhp, will I have done most the work to then step it up to 500bhp+ when I have sourced a 6sp box?

Is that with casual driving?

Unfortunately...... Lol

Depends on how you want to use it. I've got 201bhp blade for acceleration, I want a car with good mid range grunt.... If i want to be quick off the lights I would have kept me scooby. I get what your saying but it completely depends on what you want your car for. No track days for me, nor heavy standing starts. I'm 36,not 22 anymore....

Hmmm but I've also heard of some w58 boxes holding 450bhp plus if not driven like a hooligan.... My car is full bpu now and I guess that's around the 400 mark? Gearbox seems fine....

Not sure, I found out about it through on mkiv.com..... A guy there listed several turbos that were applicable to a supra, both single and twin options..

Guys After a whiff of smoke the other day after coming off boost and finally getting my hands on a 550bhp capable SMIC, it's time to think about single turbo. My aim ever since getting a Supra has been a 500bhp everyday car (car is currently fully BPU with a HKS EVC V). My current limitation is the W58 box that has been known to break around the 500 mark however, with that in mind, the TS04 Turbo is apparently good for 450bhp which would be a nice step into single territory, ready to fit a more capable turbo when the gearbox is upgraded this year. With that in mind and a search already tried on this forum, does anyone have any info on a TS04 turbo? Does anyone also have a link to a single turbo conversion guide; I will browse however there may be a few out there. I know I'll need the following so far: Manifold Turbo Various oil lines??? Thanks in advance for any help. Cheers Mark

I've just brought a clutch from Competition Clutch for a W58 box. Its rated to about 480bhp and cost me £399 delivered......

When a good 6sp offer comes up I'm on it... Along with many others I guess....

5 for now... Why?

Sounds like you're talking from experience there Logie.....screw it, I'm putting my auto ECU back in until I can get or find a write up on how to do this properly. There is actually nothing wrong with the auto ECU in place however I wanted the conversion to be as complete as possible. Someone did also mention that there may be a difference in revs during gear changes between the ecu's...be nice to find out....

Coolio, thanks Listy.....I'll get in touch with Steve at Toyot and get one ordered... On a side note, the quality of the D1 gearknobs for £20 is very high. They're very heavy so give a nice throw between gears......

Jezz - To resurrect an old topic, if I want to fit a manual ECU into an auto car (TT), what would I need to do?

Just found this but it wasn't answered... http://www.mkivsupra.net/vbb/showthread.php?249622-Neutral-safety-switch-Auto-Manual-Conversion-Engine-Light-Problem-5800-rev-limit Reading through this though, as my car was an auto and is now manual and has been running on the auto ecu, the car shouldn't have started?!? I'm confused now, I'm tempted to start the car (or try) and see what happens with the ecu on....I don't want to break my car though!

Thanks Pedro, do you have a manual ecu on yours? Was your car converted?