Turbo Dilema, editted: Solved Twin Scroll BW EFR 7670 it is then.

[MK Motorsport]

Read the BW website on them and this willl tell you,
If you are looking at the overlay graph it was the same car a few months apart that wouldnt of affected spool being a diff and that wasnt a EFR compare it is a GTX3071 to a S200SX, The 600hp graph was changing the engine to a 2.2lt and 7670EFR.

Mark

hi mark
was this a cosworth engine ,what do you think that makes the most difference turbo or manifold

mark

[SCS j1mbo]

So you spent 10K on a engine to spool a 20year old 2k turbonot the best way of doing it,
Also didnt that engine break the nose off the crank and then went on to hole a piston,
So you updated your engine which caused you problems but your turbo was reliable,
Did you know BW are the sole supplier to the Indycar champoinship and this year has not had a problem with reliablity even at the Indy 500 which is about as hard as it gets and the turbo's are production item that we are now fitting to the cars.

Mark

Mark to be fair the crank was design fault and piston also a manufacturer fault, it really could have happened to any engine I have to say mikes engine is awesome considering it is on a 20year old turbo, if the BW makes a 2.0 close to his (which I beleive it should going by what you say) then it will be awesome

[mark shead]

Mark to be fair the crank was design fault and piston also a manufacturer fault, it really could have happened to any engine I have to say mikes engine is awesome considering it is on a 20year old turbo, if the BW makes a 2.0 close to his (which I beleive it should going by what you say) then it will be awesome

Sorry Jimbo it wasnt a dig at you or SCS just showing Mike how easy it can be to have a issue.

Mark

[SCS j1mbo]

Sorry Jimbo it wasnt a dig at you or SCS just showing Mike how easy it can be to have a issue.

Mark

No I see exactly where you was going mark

[mark shead]

hi mark
was this a cosworth engine ,what do you think that makes the most difference turbo or manifold

mark

It was a Evo and the packages works together.

Mark

[MK Motorsport]

It was a Evo and the packages works together.

Mark

will it have the same effect on a cosworth do you think mark

[mark shead]

will it have the same effect on a cosworth do you think mark

I have tried 3 diff manifolds on 6 cars with 6 diff twin scroll combinations on the YB so I have gain lots of knowledge on what one works best and the diff in styles and that is not the info that I am willing to let out for others to copy easily.
I have also gained a huge amount of knowledge of the Evo engine on even more turbo's and exhaust housing sizes.

Mark

[Gatecrasher]

To be fair gaybirds engine is 4+ years old and these turbos wasn't about then! I would like to see mikes engine with ones of these bw turbos on it, now that would be awesome

[mark shead]

To be fair gaybirds engine is 4+ years old and these turbos wasn't about then! I would like to see mikes engine with ones of these bw turbos on it, now that would be awesome

I have done lots of them like that Evo or YB and they are awesome, Even looking to put a 9180 on a 2lt evo that already has a 8374 and lag what lag its awesome.

Mark

[kjc300]

Were there no twinscroll turbos around years ago then? Was just thinking - as the 2wd manifold is 'split' isn't it?? So in theory a twinscroll could go straight on (albeit an internal wastegate one)

[punton.bhp]

I have done lots of them like that Evo or YB and they are awesome, Even looking to put a 9180 on a 2lt evo that already has a 8374 and lag what lag its awesome.

Mark

So in you opinion the bw is the best turbo to go for on the market at the minute mark and thanks don't mean to ask so many questions and do your head in

[mark shead]

Were there no twinscroll turbos around years ago then? Was just thinking - as the 2wd manifold is 'split' isn't it?? So in theory a twinscroll could go straight on (albeit an internal wastegate one)

BW hasnt made a T3 internal gated twin scroll yet, I am trying to get a T3 single scroll one to try on a 2wd manifold but they are in short supply.

Mark

[Gatecrasher]

A 9180 on a 2L tha is insane surly if the lesser is rated to 750 the 9180 is going to have to make 800+ to justify adding it? That would be quiet an achievement 200hp per cylinder... And no lag

Kev I would assume they was about but big big money and untested, GT35 ect were all the rage back then but no one knew how bad they was as it was all in the early development stages

[mark shead]

So in you opinion the bw is the best turbo to go for on the market at the minute mark and thanks don't mean to ask so many questions and do your head in

In my testing and experiance it is the best by far, It is very current tech in it rather than the Garret 10year old turbo with a updated comp wheel,
I could sell anything and moving away from garret was a big change for me as I had blinkers on for years.

Mark

[mark shead]

A 9180 on a 2L tha is insane surly if the lesser is rated to 750 the 9180 is going to have to make 800+ to justify adding it? That would be quiet an achievement 200hp per cylinder... And no lag

Kev I would assume they was about but big big money and untested, GT35 ect were all the rage back then but no one knew how bad they was as it was all in the early development stages

I have a customer that wants 750hp on his 2lt Evo and to get much more than 700hp out of a 8374 will be diff on that engine so we already have plans for a 9180 if we need it.
After driving 2 2lt Evo's on the 8374 now dosent worry me with thoughts of lag monster.

Mark