Hi. Currently carrying out an auto to manual conversion. I'm lifting out the engine also. I have a 1990 J spec auto TT I understand that the auto turbo's are different to the manuals, presuming the auto's are smaller so they spin up faster. Is it worth changing the auto tubs for manual ones?

Yes Auto turbo's are smaller for the quicker spool time.

 

To be honest I doubt you will notice much difference for the ammount of time, money and work you would need to put in changing the turbo's over. Be MUCH better to upgrade to aftermarket turbos if you gonna do it.

Yes Auto turbo's are smaller for the quicker spool time.

 

To be honest I doubt you will notice much difference for the ammount of time, money and work you would need to put in changing the turbo's over. Be MUCH better to upgrade to aftermarket turbos if you gonna do it.

definatly :nana2:

The smaller turbos were put there to make the make the performance the same as the manual.

If you changed them to bigger ones it would probably spool up slower and actually reduce performance.

The auto is quicker to 100mph than the manual.

 

If you want more power then go for some bigger upgraded turbos :)

The smaller turbos were put there to make the make the performance the same as the manual.

If you changed them to bigger ones it would probably spool up slower and actually reduce performance.

The auto is quicker to 100mph than the manual.

 

If you want more power then go for some bigger upgraded turbos :)

 

The manual has a more aggresive inlet cam profile to suit the turbo gearing, which is why it has less torque at lower revs, but a little extra back end of mid range.

if the auto is quicker to a ton is it quicker to 60 aswell?

if the auto is quicker to a ton is it quicker to 60 aswell?

 

Yes

never knew that! always thought the manual was faster! sorry if im going off topic but what are the figures?

I think ,but if I'm wrong someone will correct me that the Auto is about 0.2 of a second faster at 5.7 seconds. (Disclaimer for the forum Police) My memory could have invented that though.

 

(My opinion though) I think Manual is much more fun to drive hard on the twisty's.

yep i wish mine was manual but for the price i paid i cant complain =)

I thought the manual was quicker to 60 (as you can do silly clutch destroying starts) but the auto beats it on to 100...

Who knows, I can't be arsed checking but I know the 0-100 auto thing is definately a Z fact :)

 

Also the auto is geared for 201mph if you have enough power but the manual will "only" get to 196 ish?

 

All this is irrelevant as the auto box will die 6 months after you buy the car anyway :rofl:

PMSL :rofl: Manual is quicker to 60 but auto quicker to 100. Probably due to 3rd gear running out just before 100 and having the extra gear change. Shame because 3rd is the best gear it pulls like a ****in train! Just those extra few mph would be nice tho...

i had an manwell conversion and kept the auto tubs and TBH you wont notice any difference. [youll be enjoying throwing the gear lever around too much! :dance: ]

yep i wish mine was manual but for the price i paid i cant complain =)

 

I have the full manual conversion kit available if your interested.

 

Cheers

 

M, :)

I have the full manual conversion kit available if your interested.

 

Cheers

 

M, :)

 

VERY!! how much? any chance of delivery to newcastle or am i goin to have to come down there in my dirty diesel 306 to collect it coz theres no way the gf would let me use her 328i :rofl:

VERY!! how much? any chance of delivery to newcastle or am i goin to have to come down there in my dirty diesel 306 to collect it coz theres no way the gf would let me use her 328i :rofl:

ile pick it up for you and deliver

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

its ok i dont need your address :D ;)

ile pick it up for you and deliver

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

its ok i dont need your address :D ;)

 

:rofl: i take it ur afta one yourself :rofl:

VERY!! how much? any chance of delivery to newcastle or am i goin to have to come down there in my dirty diesel 306 to collect it coz theres no way the gf would let me use her 328i :rofl:

 

Hi Liam

 

Cant deliver to newcastle so get yourself down here in the 306; it'll fit in there with the back seats down! :D

 

Call me this evening up till 10pm on 07789 033086 and we can discuss prices as I have a really nice clutch/flywheel setup too! :D

 

Cheers

 

Mark.

PMSL :rofl: Manual is quicker to 60 but auto quicker to 100. Probably due to 3rd gear running out just before 100 and having the extra gear change. Shame because 3rd is the best gear it pulls like a ****in train! Just those extra few mph would be nice tho...

Andy how much would Manual Tubs slow an Auto down? if any?

Me and Greg both have manual tubs on an Auto Engine/box but i am not sure if i can feel much difference but i could be wrong! ;)

Hi Liam

 

Cant deliver to newcastle so get yourself down here in the 306; it'll fit in there with the back seats down! :D

 

Call me this evening up till 10pm on 07789 033086 and we can discuss prices as I have a really nice clutch/flywheel setup too! :D

 

Cheers

 

Mark.

 

i will have to wait nd see whats happening with my mortgage first as me nd my gf are busy lookin for a house, we've had our offer accepted so we're just waiting to hear what the next step will be then i can plan a few bits nd bobs for the car :hyper:

Andy how much would Manual Tubs slow an Auto down? if any?

Me and Greg both have manual tubs on an Auto Engine/box but i am not sure if i can feel much difference but i could be wrong! ;)

 

Not much really, in fact, auto tubs on a manual will probably see a better 0-60 times due to higher torque. Top end will be slightly less but not much :)

Not much really, in fact, auto tubs on a manual will probably see a better 0-60 times due to higher torque. Top end will be slightly less but not much :)

I have Manual Tubs on an Auto Engine and box.

I thought it was slightly more laggy and full boost is higher up the Rev range :confused: A bit disapointed when i had a 2006 Z4 up my ass (2 car lengths) the other day on the M27 had him right up my ass (he was trying to push me which annoyed me) untill i got over 120 then i started to leave him in the Horizon.

I was very gutted as i know the Engine is very good after i rebuilt it fully.

So i was getting the Feeling maybe putting Manual Tubs on could have been a bad idea?

It is not running standard boost either and I am running a Central 20 chip as well with Greddy trust stainless full system :confused:

It certainly felt alot quicker when i had auto Tubs and that was with a Knackered engine.

The fact that most of the solenoids aren't working wouldn't help ;) (the ones of *that* fuse lol)

I did break one the the metal tubes on one of my original solenoids so i was going to by pass both of them by rerouting the vacuum hoses, but i bought a second hand one and fitted that instead! Maybe its a faulty one possibly!

I must admitt i have not been paying much attention to the Secondary boost gauge?

I have been driving like a granny since i fitted this engine! Apart from the other day on the M27 :D

That was the first time i have booted it in 3 months ;)

The fact that most of the solenoids aren't working wouldn't help ;) (the ones of *that* fuse lol)

Are the soleniods open (activated) with voltage present when Engine running or open with no voltage engine running ie if i disconnected the connectors would they be closed or open?

Or maybe i should do the simple bypass??

Forgive the questions Andy as i have been ill this week and have not been able to do any tests! (nothing to do with beer either) so this is just tech info for when i do go out to fix this issue ;)

Are the soleniods open (activated) with voltage present when Engine running or open with no voltage engine running ie if i disconnected the connectors would they be closed or open?

Or maybe i should do the simple bypass??

Forgive the questions Andy as i have been ill this week and have not been able to do any tests! (nothing to do with beer either) so this is just tech info for when i do go out to fix this issue ;)

 

Disconnected would be closed - ie 7psi safety boost levels. Thats assuming the solenoids haven't jammed open....