me@td5.org wrote:

A good remap, increased and an upgraded intercooler will give you more power and torque throughout the rev range but don't expect there to be flat torque curve.

The turbo needs exhaust pressure to spin, the fixed geometry is a compromise it doesn't create enough boost at low revs and produces too much at high revs so is waste gated.

The TT S208 which is sold by Pete and Ian addresses this and addresses this. I have always been very happy with the performance of these but the reliability of the Turbo has been an issue.

There are 2 other models listed by TT the S208-1 which has a lower pressure output and the S220 which is a larger hybrid unit.

Aside from TT there are units by Owen Developments retailed by Alive tuning as the Larger Charger which is a hybrid Wategate turbo.

understood how it works re the turbo If I understand you correctly you have the TT S208 fitted , major difference ??? What you mean re " the reliability of the Turbo has been an issue. " ? Thanks PP Postmanpat

JWL wrote:

My turbo is still original and I would put the extra torque on mine down to the decat, middle box out and mainly on the remap. Towing right on the 3.5t limit(2.7t mini digger on plant trailer plus buckets and mud) mine towed it well. A standing start on an incline was better in low range but level pull aways at junctions was comfortable in high box. I felt it towed that set up as well as it towed the same type of trailer empty with no remap.
When it was remapped the MAF had to be renewed(surprise surprise) and it hadn't seen anyone to upgrade odd things on the electrickery bits since it left the factory 6 years previously even though it was supposed to have dealer servicing. It is ex-police and they sent it to a main stealer once a year for the main services, I doubt whether it actually saw the inside of the workshops at the dealers, it's not like your own motor where as the driver/owner you'd notice!

thanks for your reply , I have changed to the decat and removed the middle box plus installed a large intercooler so I'm now looking at what mapping is the best to go for re performance and reliability in the long run . So any specific info re the mapping would be appriciated ...  Postmanpat

bell-auto-services wrote:

Regarding turbo reliability, on the over 100 units i have sold i have only ever had 1 failed unit. This was infact due to a map that was already on the car that was not working correctly as well as the customer who decided to change the actuator postion as they thought increasing the vane angle would help

All out turbos come with 1 years TT warranty on faulty parts.

Pete

ok , so what package would you advice me to get ? if you like pm me or I can sent you my email ...  Postmanpat

bell-auto-services wrote:

I think all you have left to modify is a remap and turbo.

Pete

bell-auto-services wrote:

Im biased

BAS remap and BAS TD5 VNT

Pete

don't wanna come across being tick , but where do i find info re same ...  Postmanpat

SteveG wrote:

You have three choices...

1. Go for stage II remap and stick with that.

2. Do a deal with one of the suppliers that you go for stage II remap to try it out. If ok stick, if you want more go back and get a VGT turbo with a corresponding remap and they only charge for one remap and labour to do 2nd remap.

3. Go straight to VGT turbo and remap to suit.

As for where, you've already been recommended two of the best, but you can try others.

Oh there's a 4th choice, do nothing

Cheers

Steve

say will look at choices 2 or 3 , thanks  Postmanpat

bell-auto-services wrote:

Regarding turbo reliability, on the over 100 units i have sold i have only ever had 1 failed unit. This was infact due to a map that was already on the car that was not working correctly as well as the customer who decided to change the actuator postion as they thought increasing the vane angle would help

All out turbos come with 1 years TT warranty on faulty parts.

Pete