Running turbocharger + supercharger?

16th July 2009, 22:16

Just wondering, obviously this will cost ££££££££'s, but what would i need to run a S/C aswell as running my turbo, obviously all normal bits you'd need for the s/c conversion, but what else would i have to adress? Custom fabrication and problems?

16th July 2009, 22:22

Would just need to build it as seperate kits but make sure the output sizes arent to far apart.

intercooler wise it would properly be best to run a twin enterly IC then metal pipe it to the TB

16th July 2009, 22:28

do you think if done correctly it would be possible and driveable?

16th July 2009, 22:32

yea it could be done. the s/c would keep the power lower down and defiently help if you ran a bigger turbo. wouldnt be as sudden power as a tubo so mite help keep it reliable(a little more). would be hard to fit it all in the bay but could be done mate and would defiently but a good performer

16th July 2009, 22:37

Depends how you want to run it I think, VW have a 1.4 TSI with this set up where the supercharger is mainly used for low rpms whilst the turbo is off boost then they both work in unison higher up the rev range this gives a really smooth torque curve with no lag at all.

I think the hardest part would be setting them up to work together and controlling the amount of boost.

16th July 2009, 22:40

Yeah would be hard to find the space, however my bay is larger due the bodykit and large front bumper there is a lot more space, if im running a gt28r then a medium size supercharger would be good for instant low down power and then the turbo would kick in and add more boost?

what sort of figures would be achievable?

and would the engine take it?

16th July 2009, 22:45

figures all depend on what sort of build quality it is and how well set up.

with the engine taking it...you would have to use the best of the best and make sure its built to the highest spec just to make sure your not going to kill your engine straight away.

if you can put 400bhp through the j4 engine you could match that power with this

16th July 2009, 22:46

If its on forged internals I can see why it wouldn't take it but depends if you want massive power or reliability.

I've found a diagram of how VW do it any way they use the supercharger to pre-boost the turbo reducing the lag.

16th July 2009, 22:51

so they use the supercharger to get the turbo going. would have to match output/inputs perfectly or you would just kill chargers off so quickly

16th July 2009, 22:52

Right ok, so basically i'd need to find some way of controlling which charger boosts when? And then control the power so it can work reliably?

16th July 2009, 22:57

Yeah TBH VW have obviously pumped a load of money and time researching this getting it useable in a road car, I think the 1.4 TSI is 170bhp and 240Nm.

I've only seen one other car successfully running like this which was a 4WD MK4 Golf with a 1.8 20VT that had been supercharged as well but they said it took years to build and get it running right.

16th July 2009, 22:58

yea you need a lot of controlling factors, allot of delevopment and sh*t loads of money/knowledge/good backing company

16th July 2009, 23:31

Quote:

Originally Posted by Aron

yea you need a lot of controlling factors, allot of delevopment and sh*t loads of money/knowledge/good backing company

Could you not just get the VW 1.4 TSI parts which are all perfectly matched and have had loads spent on them developing them and getting it right and just modify so it would plumb in the VTR fittings and fit in the bay properly?

James

16th July 2009, 23:31

i could do it

not as easy as first thought.
need to be careful on what type of charger used.

imo, theres no point in doing it as you can get as much power and tractability out of the engine with one or the other.

16th July 2009, 23:32

Quote:

Originally Posted by Jim-Bob

Could you not just get the VW 1.4 TSI parts which are all perfectly matched and have had loads spent on them developing them and getting it right and just modify so it would plumb in the VTR fittings and fit in the bay properly?

James

it could be possible but would be a wireing nightmare...
i would have to put it on standalone ecu to make it feasable.

16th July 2009, 23:33

there's a 1 litre nissan march or something that comes from the factory bi charged I think, could get ideas and info from that setup they run maybe.

17th July 2009, 02:36

good luck with watever plan u go with

17th July 2009, 07:35

havnt dp engineering done a twin turbo and supercharged tu lump, didnt make very good power from what i can remember

17th July 2009, 07:39

if it dose work it will be quick as fuck lmfao

17th July 2009, 17:54

im not too sure about running them both on the same set up tbh. but there is a a lad called beardie on corsa sport who is running a c20let on bodies!!! its running 550bhp the last time i checked.

maybe that could be an option for you?

abit off topic but i thought it would be a good sugestion.

17th July 2009, 21:25

if you were to go for it you'd be better off going rwd conversion and put the lump in the back, would be a better set up and give you a bit more room to work with

17th July 2009, 23:34

http://www.dp-engineering.nl/EN/projects/twinturbo.php

on a 1.4? The amount of work and money!!!!!

17th July 2009, 23:40

the dp car isnt about how much power they can get from the car...

its an example of their engineering skills. the car is also more drivable and tractable than most highly tuned n/a 1.6 16v motors out there.

17th July 2009, 23:45

Old Lancia S4 had both iirc

18th July 2009, 09:11

The dp twin turbo/superchaged car is an absolute work of art! I soo want that set up on mine!