Built Auto Box

[baldy]

1 hour ago, Burna said:

Move which shift points? I can rev all the way to 7.5k and change up gear.

In drive?

[mattdavies]

1 hour ago, Burna said:

That's what I had observed with other ecu installs controlling the box, and they dont work right, and was also advised the same by SRD. So I have the stock ecu controlling the autobox, and a link G4+ Extreme controlling the engine/single turbo and everything else.

Just need something to control you now !!! 

My plan is to keep the stock ECU looking after the box if i go single turbo. I have a Mines ECU so i dont know if the line pressure is a little higher on it anyway 

[Burna]

17 minutes ago, baldy said:

In drive?

I'm pretty sure it does yeah, but I'll have to check, as I see your thinking. But when giving it some surely you use manual mode anyway? Like I do, as the rev limit has been raised and I want to use it, plus manual mode changes quicker, but it's easy with my paddle shift of course.

[Burna]

19 minutes ago, mattdavies said:

Just need something to control you now !!! 

Many many have tried and failed lol

[Frank Bullitt]

5 hours ago, baldy said:

Syvecs s7+ +an i/o 10as running out of inputs with dbw and the sensors I want to run

It is ,pretty much a 6266 they just spec differently. Aft was very fast something like 3weeks and yes stage 3, stage 4 has come about since mine was sorted else I'd of gone stage 4. I have a couple of spare 340's. Once stage 5 is available I'll send one over

On a cast manifold or did you go tubular? That’s a really good turn around, are you looking to go for big power in the future or just piece of mind?

[Frank Bullitt]

5 hours ago, Burna said:

My advice, and advice given to me when I was choosing an ECU, was to leave the stock ECU to control the autobox, and the aftermarket ECU to control everything else. Non of the aftermarket ECU's control the stock autobox very well.

Syvecs does, MoTeC M150 does. There is a mappable gearbox ecu on the market too, the HTG Gearbox Control Unit. It looks promising and would help free inputs on a standalone but I’d want to see more videos of them by well known mappers.

OEM ecu and standalone is much less of a headache.

[Burna]

10 minutes ago, Frank Bullitt said:

Syvecs does, MoTeC M150 does. There is a mappable gearbox ecu on the market too, the HTG Gearbox Control Unit. It looks promising and would help free inputs on a standalone but I’d want to see more videos of them by well known mappers.

OEM ecu and standalone is much less of a headache.

Honestly mate Syvecs doesnt, not properly, and that's from everyone I spoke to, as that's the route I originally wanted to go. The HTG haven't got anything running great yet! I've been following it closely as I was considering going DCT box.

[chaoticentity]

37 minutes ago, Frank Bullitt said:

Syvecs does, MoTeC M150 does. There is a mappable gearbox ecu on the market too, the HTG Gearbox Control Unit. It looks promising and would help free inputs on a standalone but I’d want to see more videos of them by well known mappers.

OEM ecu and standalone is much less of a headache.

 

24 minutes ago, Burna said:

Honestly mate Syvecs doesnt, not properly, and that's from everyone I spoke to, as that's the route I originally wanted to go. The HTG haven't got anything running great yet! I've been following it closely as I was considering going DCT box.

He talks about lowering power levels during gear changes etc using the Motec ECU so it *may* do it properly. Doesn't seem like we in the UK use Motec a whole lot, and I think it's a relatively new option so hasn't had much time out in the wild yet. Something I'm keeping an eye on as I've heard a lot of the same of what you're saying Burna, Syvecs etc don't control the box properly leading to problems as you say

[Frank Bullitt]

43 minutes ago, Burna said:

Honestly mate Syvecs doesnt, not properly, and that's from everyone I spoke to, as that's the route I originally wanted to go. The HTG haven't got anything running great yet! I've been following it closely as I was considering going DCT box.

I could have put you in touch with a mapper who can but the cost is eye watering as the map is built from the ground up.

It might be that the HTG offers more scope with the likes of a DCT vs the OEM box, I’d guess that is because the more modern box would be more complex by comparison. I think I’d be more interested in seeing it run a ZF 8HP or the Lexus IS-f 8 speed box SRD was playing with for years. I like the idea of keeping one ECU for the engine and one for the gearbox.

Are you convinced that a manualised paddle box would be any quicker vs the ATF Speed box under WOT if the cars were like for like? I’m not keen on the massaging (distorting) of the gearbox tunnel to make one fit and the outlay (for what to me is a little more than drive ability due to extra gears) doesn’t make it worth the hassle to me.

You also have the hassle of trying to find the right rear end ratio too.

Edited June 18, 2021 by Frank Bullitt (see edit history)

[Frank Bullitt]

21 minutes ago, chaoticentity said:

 

He talks about lowering power levels during gear changes etc using the Motec ECU so it *may* do it properly. Doesn't seem like we in the UK use Motec a whole lot, and I think it's a relatively new option so hasn't had much time out in the wild yet. Something I'm keeping an eye on as I've heard a lot of the same of what you're saying Burna, Syvecs etc don't control the box properly leading to problems as you say

JRR & Cody Phillips Racing in the USA were running the autobox a little less than a year after the M150 was released. People won’t pay for a MoTeC, not because it’s a new option but due to the costs involved in going this route when very similar can be had for a fraction of the cost.

As I said to Burna above, Syvecs can, will and does. It all depends on how deep your pockets are.

[baldy]

1 hour ago, Frank Bullitt said:

On a cast manifold or did you go tubular? That’s a really good turn around, are you looking to go for big power in the future or just piece of mind?

Im going with an arnout cast manifold. if im not happy with it i’ll go phr s23 divided to match the turbo
 

Turn round shocked me to be honest.

 

Who knows, i’ll see how it goes, i built the engine as itbhad run bpu for 15+ years on stock ecu mega over fueling. When i releast the big end caps the pistons were so loose in the bores it was only the lip atbthe top of the bore stopping the pistons falling out. The trans got the treatment as it had started to slip when i fitted a greddy with q45 throttle thus no traction flap to reduce power on gear change. I plan on getting the dbw to do this now though
 

added a pic for reference, im not into shinny bits, still some tidying to do with wiring

[Frank Bullitt]

On 6/18/2021 at 5:27 PM, baldy said:

Im going with an arnout cast manifold. if im not happy with it i’ll go phr s23 divided to match the turbo
 

Turn round shocked me to be honest.

 

Who knows, i’ll see how it goes, i built the engine as itbhad run bpu for 15+ years on stock ecu mega over fueling. When i releast the big end caps the pistons were so loose in the bores it was only the lip atbthe top of the bore stopping the pistons falling out. The trans got the treatment as it had started to slip when i fitted a greddy with q45 throttle thus no traction flap to reduce power on gear change. I plan on getting the dbw to do this now though
 

added a pic for reference, im not into shinny bits, still some tidying to do with wiring

Very nice, are you getting any porting and polishing done on it? That’s a cracking service and turn around. Is there any warranty or guarantee with the box? Any breaking in time like a diff?

I didn’t ever think you would go single, you seemed really happy at BPU. Your engine like that is just testament to the strength of the stock parts. The photee didn’t upload.

Would be great to see some recent ones, always had a soft spot for the colour.

[baldy]

16 minutes ago, Frank Bullitt said:

Very nice, are you getting any porting and polishing done on it? That’s a cracking service and turn around. Is there any warranty or guarantee with the box? Any breaking in time like a diff?

I didn’t ever think you would go single, you seemed really happy at BPU. Your engine like that is just testament to the strength of the stock parts. The photee didn’t upload.

Would be great to see some recent ones, always had a soft spot for the colour.

Yeah its had a full race port job done . No warranty on race parts, they’ll always have a get out clause. Don’t know on the diff, thats still in the box waiting to go in, that’ll be over the winter now.

yes loved bpu, I’ve upset a few singled cars as was, but it was always a want for the clean single look 

i uploaded a pic then removed as felt i was taking over someones post, check my insta theres some on there ‘stuntmansimon’

but here ya go, still a bit of tidying to do though

 

 

[Frank Bullitt]

You’re right, thanks for the link. I’ll have a perv now. Apologies tayr, didn’t mean for this to go off topic.

[tayr]

No worries at all man it’s all helpful info 

[Noz]

I mean its not ALL helpful. Some of its distracting lol.. as usual

[supradanturbo]

I can highly recommend the srd stage 3 a340. I have tested it harder than anyone else. Drag racing a lot. Countless drag strip runs and 25+ 10 second passes. 
 

currently the fastest (to my knowledge) a340 supra in the uk, with a 10.42 at 132mph 

fastest times with cast manifold making 800hp ish 

with the stock ecu controlling the gearbox 

[tayr]

43 minutes ago, supradanturbo said:

I can highly recommend the srd stage 3 a340. I have tested it harder than anyone else. Drag racing a lot. Countless drag strip runs and 25+ 10 second passes. 
 

currently the fastest (to my knowledge) a340 supra in the uk, with a 10.42 at 132mph 

fastest times with cast manifold making 800hp ish 

with the stock ecu controlling the gearbox 

thats great! thank you! what diff are you using?

[supradanturbo]

1 hour ago, tayr said:

thats great! thank you! what diff are you using?

No worries. I’m using a stock a02b. Auto cars don’t suffer with wheel hop. Wheel hop is what will break any differential. 

[tayr]

2 minutes ago, supradanturbo said:

No worries. I’m using a stock a02b. Auto cars don’t suffer with wheel hop. Wheel hop is what will break any differential. 

this is music to my ears... thank you mate!

[Burna]

2 hours ago, supradanturbo said:

I can highly recommend the srd stage 3 a340. I have tested it harder than anyone else. Drag racing a lot. Countless drag strip runs and 25+ 10 second passes. 
 

currently the fastest (to my knowledge) a340 supra in the uk, with a 10.42 at 132mph 

fastest times with cast manifold making 800hp ish 

with the stock ecu controlling the gearbox 

This is great info Dan! Thank you! SRD now offer a stage 4.5, I've been chatting to Lee about it, and seems like a really good option in the UK.

Good to hear you are still on the stock ecu controlling the gearbox.

[supradanturbo]

Yeah srd have been brilliant as always. Stock ecu controls the gearbox very well. With a histall converter you have to pull the traction fuse. So you lose manual mode and the second throttle can’t close anymore. 

also as Simon said you can’t change shift points on the stock ecu. So you have to upgrade to full control to change the shift rpm. 
 

stage 3 srd box is a great piece of kit. 

[tayr]

2 minutes ago, supradanturbo said:

Yeah srd have been brilliant as always. Stock ecu controls the gearbox very well. With a histall converter you have to pull the traction fuse. So you lose manual mode and the second throttle can’t close anymore. 

also as Simon said you can’t change shift points on the stock ecu. So you have to upgrade to full control to change the shift rpm. 
 

stage 3 srd box is a great piece of kit. 

My plan was to get the gearbox sorted first then eventually single and ecu.. Do you know if you can run a built autobox on just regular stock ecu/stock tt set up entirely?

[Burna]

2 minutes ago, supradanturbo said:

Yeah srd have been brilliant as always. Stock ecu controls the gearbox very well. With a histall converter you have to pull the traction fuse. So you lose manual mode and the second throttle can’t close anymore. 

also as Simon said you can’t change shift points on the stock ecu. So you have to upgrade to full control to change the shift rpm. 
 

stage 3 srd box is a great piece of kit. 

I'm not interested in hi-stall, as drag racing doesn't do it for me, prefer driving it hard, so I use manual mode on my paddle setup a lot of the time when having fun, and also want to keep the second throttle closing on gear changes to help the life of the box  Shift points don't both me, as I can use all the revs in manu mode as my rev limit has been raised to 7.5k with the link ecu

[supradanturbo]

Yes stock ecu will control a built gearbox just the same as a stock box. 
 

as with all a340 gearboxes. Try not to use wide open throttle in overdrive. And do not wheel spin from 1st into 2nd. Eg a burnout changing into 2nd gear. This is very likely to roll the 2nd gear sprag 

if you treat the gearbox right. It will last very well. also change the fluid in the sump as often as possible if you are giving it a hard time.