hi all not got my first z yet ( hopefully not be long) so was just wondering how the twin turbos work , do they come in together or does 1 help spool the other one ? sorry if iv posted in wrong plase or if someone as already answerd this question in another thred as im new tho this brill site .... thanks in advance. fray [/color][/color]

they work independently of each other and spool up together . a turbo feeds each bank of 3 cylinders.

ohh right , cool , thanks for the fast reply

hi all not got my first z yet ( hopefully not be long) so was just wondering how the twin turbos work , do they come in together or does 1 help spool the other one ? sorry if iv posted in wrong plase or if someone as already answerd this question in another thred as im new tho this brill site .... thanks in advance. fray [/color][/color]

 

 

 

 

they work independently of each other and spool up together . a turbo feeds each bank of 3 cylinders.

 

 

Mmm.. well...actually the boost is produced from a single intake feeding both turbo`s which then both feed into a single plenum intake which feeds all six cylinders at the same time.

 

 

Jeff TT

They are parrallell type, as opposed to the RX7 sequential type ;)

Hi Fra welcome to the forum be good to get a few more round here, im from mansfield too, I feel like the only zed in the village at the moment .

Mmm.. well...actually the boost is produced from a single intake feeding both turbo`s which then both feed into a single plenum intake which feeds all six cylinders at the same time.

 

 

Jeff TT

isnt the plenum two branches of three. effectivly feeding 3 cylinders per turbo?

 

seperate exhaust system for each bank with its own turbocharger admittedly fed via 1 intake which is then split to each turbo which then feeds the engine via a throttle body for each bank.

isnt the plenum two branches of three. effectivly feeding 3 cylinders per turbo?

 

seperate exhaust system for each bank with its own turbocharger admittedly fed via 1 intake which is then split to each turbo which then feeds the engine via a throttle body for each bank.

 

 

Yes matey your dead right, just the balancer bar at the back of the plenum means there is no difference in air pressure to the cylinders on the left bank and the cylinders on the right bank, but from there onwards, how the exhaust effects things is down to the back pressure etc. and can I guess have subtle differences.

 

Jeff TT

Yes matey your dead right, just the balancer bar at the back of the plenum means there is no difference in air pressure to the cylinders on the left bank and the cylinders on the right bank, but from there onwards, how the exhaust effects things is down to the back pressure etc. and can I guess have subtle differences.

 

Jeff TT

 

cool thought i was being a numpty LOL

Yes matey your dead right, just the balancer bar at the back of the plenum means there is no difference in air pressure to the cylinders on the left bank and the cylinders on the right bank, but from there onwards, how the exhaust effects things is down to the back pressure etc. and can I guess have subtle differences.

 

Jeff TT

 

Never thought about that, so the balance bar is actually distributing the excess pressure from one bank to the other, as the turbos are never going to be perfectly matched?

equalises pressure for both banks, yeah.

So as my mate keeps putting it 2 3cylinder turbo'd engines :P

They are also balanced out in another way, each turbo feeds the cylinders on the opposite bank, so if one side is not runnning correctly it reduces the chance on a V engine of running out of balance!

 

On the Oz forum they did thorough testing on the plenum, and found the cylinders that were feed the most air were No.6 backwards, which may contribute to these cylinders going pop more regularly due to running lean,

Edited March 14, 200916 yr by TopLess

and when one turbo seizes the other cannot produce enough boost to even get the boost guage past zero. .... as I unfortunately found out but it was after 140k miles on the original turbos.

It can't the exhaust from one powers the intake pressure on the other, mind you 140k ain't bad :)