So many turbos ........

[rocko]

But which one .... to suite 400bhp ?

[Martynj]

Turbo Dynamics new MD555 would be my choice, it comes in outputs ranging from 380hp - 500+hp.
Give them a bell and have a chat to Craig, he will steer you right.

[rocko]

Turbo Dynamics new MD555 would be my choice, it comes in outputs ranging from 380hp - 500+hp.
Give them a bell and have a chat to Craig, he will steer you right.

To be fair i think i spoke to them once at the jap show .. that is a nice bit of kit ....

[rob500]

also the lateral md range, the rcm new turbos which i have had fitted but as yet not mapped so cant tell you any results but from what ive heard they are much of a muchness, so prob depends who you are nearest

[marky mark]

I have fitted and been involved with both the Lateral MD321H and the RCM400 turbo on a couple of cars. Both very similiar, and the best i have come across myself. Superb performance, will give you 400-415 BHP @ circa 1.4 bar on an unbuilt engine with 380-400 ft'lb of torque.

[Martynj]

I have fitted and been involved with both the Lateral MD321H and the RCM400 turbo on a couple of cars. Both very similiar, and the best i have come across myself. Superb performance, will give you 400-415 BHP @ circa 1.4 bar on an unbuilt engine with 380-400 ft'lb of torque.

And both built by Turbo Dynamics, so shouldn't it follow suit that the MD555 would also be very similar on a like for like basis ?

[marky mark]

I have fitted and been involved with both the Lateral MD321H and the RCM400 turbo on a couple of cars. Both very similiar, and the best i have come across myself. Superb performance, will give you 400-415 BHP @ circa 1.4 bar on an unbuilt engine with 380-400 ft'lb of torque.

And both built by Turbo Dynamics, so shouldn't it follow suit that the MD555 would also be very similar on a like for like basis ?

PMSL, you don't sell the MD555 by any chance do you?

Of course it does not follow suit, I'm sure MFI has sold some decent stuff in it's time as well as the normal pap.

I don't have any experience of the MD555 so i can't recommend it, it's as simple as that. I'm not in the habit of spouting off about something i don't know about, although i would be suprised if it's not a very good turbo.

[jd]

Tjhere are a number of threads on Scoobynet discussing these options.

[Martynj]

I have fitted and been involved with both the Lateral MD321H and the RCM400 turbo on a couple of cars. Both very similiar, and the best i have come across myself. Superb performance, will give you 400-415 BHP @ circa 1.4 bar on an unbuilt engine with 380-400 ft'lb of torque.

And both built by Turbo Dynamics, so shouldn't it follow suit that the MD555 would also be very similar on a like for like basis ?

PMSL, you don't sell the MD555 by any chance do you?

Of course it does not follow suit, I'm sure MFI has sold some decent stuff in it's time as well as the normal pap.

I don't have any experience of the MD555 so i can't recommend it, it's as simple as that. I'm not in the habit of spouting off about something i don't know about, although i would be suprised if it's not a very good turbo.

I sell anything the customer wants, always have.
Have sold and fitted the 321H and T and the equivalent TD turbos, as I said there is nothing in it on the cars I have mapped.
Similar spool, power, torque and throttle response on a like for like basis on 2 litre and 2.5.
We make no money from people buying direct from TD, yet it is still the one I would advise to buy.

[rocko]

being doin some ringing around today for info on turbos

never heard of this tho

Hi Chris

I think that the only option we can offer that fits in the standardposition is suitable for the earlier engine models. The later inletmanifold is slightly larger and the Garrett based unit that we havefouls. If you were to change the inlet manifold for an earlier (pre2000) model, we can offer a bolt on replacement which will generate the400hp you are looking for.

[rocko]

being doin some ringing around today for info on turbos

never heard of this tho

Hi Chris

I think that the only option we can offer that fits in the standardposition is suitable for the earlier engine models. The later inletmanifold is slightly larger and the Garrett based unit that we havefouls. If you were to change the inlet manifold for an earlier (pre2000) model, we can offer a bolt on replacement which will generate the400hp you are looking for.

Cheers for pm mate .. now i know why this is ..

[marky mark]

Yes they do foul, but it only requires a little bit of fettling - it's no big deal. Certainly the RCM400 and the MD321H foul on the inlet manifold and the gearbox casing on every model i have fitted them on, new age or older cars.

Any one with a bit of comon sense and some decent fettling kit will sort that out though.

What is the turbo that they are recommending?

Martyn, You say there is nothing in it on the cars you have mapped between the turbo's mentioned, yet you still recommend one of them over the others?

[rocko]

well spoke to owen developments, and TD ..

RCM 400 seems the one for me ... with there fitting kit ..

Would you recomend porting and coating ... my headders are coated

If so why .. on porting ?

[Martynj]

Yes they do foul, but it only requires a little bit of fettling - it's no big deal. Certainly the RCM400 and the MD321H foul on the inlet manifold and the gearbox casing on every model i have fitted them on, new age or older cars.

Any one with a bit of comon sense and some decent fettling kit will sort that out though.

What is the turbo that they are recommending?

Martyn, You say there is nothing in it on the cars you have mapped between the turbo's mentioned, yet you still recommend one of them over the others?

I do, I always where possible go direct to the source and cut out the middle man. Saves time money and effort.

[wr1_gav]

i am in the same position at the moment in which one to get and the RCM400 is what i am going to get..what is included in the fitting kit?

[marky mark]

well spoke to owen developments, and TD ..

RCM 400 seems the one for me ... with there fitting kit ..

Would you recomend porting and coating ... my headders are coated

If so why .. on porting ?

If they are coated (ceramic i presume) then i am assuming you already have aftermarket tubular headers? Porting them will give little gain

At this level i prefer to fit aftermarkets to as there is a bit of power to be had from them over ported o.e headers. If you are not worried overly about losing a bit of peak BHP then ported o.e ones will spool up a bit better.

In the fitting kit is the water pipes and oil fittings (banjo's and a bit of goodridge hosing) you will require.

although they are all Turbo dynamics, it seems to cut out the middle man as Martyn suggested go to RCM for the RCM400 turbo, Lateral perfiormance for the MD321H or enginetuner for the MD555, Which is common sense anyway.

[dynamix]

All built by TD but all are made to different (and unique) specs.

It doesn't follow that because one turbo has the TD name on it and works (like the MD321 range has time and time again from what I have seen and from personal experience on the 321V) that other turbos with the TD name will do the same.

I have seen results from 2 x MD555's so far.

- One was on a built 2.35 engine and did well at 480 ish bhp iirc with 10% Methanol

- One was a non bolt on 555 that was fitted in a rotated location with a much larger compressor than would be possible to fit in the std location and it made 570 (again iirc)

Not aware of any on 2.0 engines ...... although maybe Martyn will be able to show some dyno graphs of these.

[Martynj]

I am also unaware of any on 2 litre engines as yet Duncan, although that is not to say we don't have a very good idea of what they will do.
This is based on our experiences of the older MD195s which had a different exhaust housing but exactly the same spec wheels and core.
We fully expect the new one to be better by design with the ceramic coating aiding spool up significantly.
I have loaded 2 graphs, both at 1.4 bar boost for pump fuel and 10% meth mix for stock engined 2 litre Sti8's.

[rocko]

well spoke to owen developments, and TD ..

RCM 400 seems the one for me ... with there fitting kit ..

Would you recomend porting and coating ... my headders are coated

If so why .. on porting ?

If they are coated (ceramic i presume) then i am assuming you already have aftermarket tubular headers? Porting them will give little gain

At this level i prefer to fit aftermarkets to as there is a bit of power to be had from them over ported o.e headers. If you are not worried overly about losing a bit of peak BHP then ported o.e ones will spool up a bit better.

In the fitting kit is the water pipes and oil fittings (banjo's and a bit of goodridge hosing) you will require.

although they are all Turbo dynamics, it seems to cut out the middle man as Martyn suggested go to RCM for the RCM400 turbo, Lateral perfiormance for the MD321H or enginetuner for the MD555, Which is common sense anyway.

Yeh I went for RCM Full system de cat and headders .. ceramic coated..


My Santa wish list list

Aps Front mount
RCM 400
Fuel Presure reg
80mm trumpet


Then bob for map....

Wish i could fit this my self ...... but aint got the skills or tools ...
lol

[Martynj]

well spoke to owen developments, and TD ..

RCM 400 seems the one for me ... with there fitting kit ..

Would you recomend porting and coating ... my headders are coated

If so why .. on porting ?

If they are coated (ceramic i presume) then i am assuming you already have aftermarket tubular headers? Porting them will give little gain

At this level i prefer to fit aftermarkets to as there is a bit of power to be had from them over ported o.e headers. If you are not worried overly about losing a bit of peak BHP then ported o.e ones will spool up a bit better.

In the fitting kit is the water pipes and oil fittings (banjo's and a bit of goodridge hosing) you will require.

although they are all Turbo dynamics, it seems to cut out the middle man as Martyn suggested go to RCM for the RCM400 turbo, Lateral perfiormance for the MD321H or enginetuner for the MD555, Which is common sense anyway.

Yeh I went for RCM Full system de cat and headders .. ceramic coated..


My Santa wish list list

Aps Front mount
RCM 400
Fuel Presure reg
80mm trumpet


Then bob for map....

Wish i could fit this my self ...... but aint got the skills or tools ...
lol

Excellent list m8, that'll make a fantastic road package.

[marky mark]

Exactly the same spec i sorted and fitted to Bro's car - with the same mapper - and Martyn is right, it does make a stunning road car.

[WR1 Bro]

[The Swede]

MM, do these turbos have anything in common with the one used on the WRC car, i.e. the IHI turbo ?

Any what would it take to get such turbo on (and what would be the effect) ?

[The Swede]

Exactly the same spec i sorted and fitted to Bro's car - with the same mapper - and Martyn is right, it does make a stunning road car.

How would it differ from what you know my preference would be, i.e a more brutal kind of car ?

[marky mark]

MM, do these turbos have anything in common with the one used on the WRC car, i.e. the IHI turbo ?

Any what would it take to get such turbo on (and what would be the effect) ?

No, nothing like them, the turbo's we are talking about are garret cores hybridised with a IHI exhaust housing that fit in the standard position. The WRC turbos are bespoke IHI units that are fitted in a completely different position.

How would it differ from what you know my preference would be, i.e a more brutal kind of car ?

Depends what you mean by brutal. The WRC cars run a limited amount of horsepower but have massively high boost levels giving frankly amazing torque levels. The best you can do is is run a rotated Garret or similiar with 2 bar or so on a completely uprated engine but you will still be well down on torque compared to a WRC car, although with the right turbo you will well exceed them in the BHP stakes.

I'm afraid that this spec and performance just is not avaliable for a road car, no matter how much money you have.

[danr55]

MM, do these turbos have anything in common with the one used on the WRC car, i.e. the IHI turbo ?

Any what would it take to get such turbo on (and what would be the effect) ?

No, nothing like them, the turbo's we are talking about are garret cores hybridised with a IHI exhaust housing that fit in the standard position. The WRC turbos are bespoke IHI units that are fitted in a completely different position.

How would it differ from what you know my preference would be, i.e a more brutal kind of car ?

Depends what you mean by brutal. The WRC cars run a limited amount of horsepower but have massively high boost levels giving frankly amazing torque levels. The best you can do is is run a rotated Garret or similiar with 2 bar or so on a completely uprated engine but you will still be well down on torque compared to a WRC car, although with the right turbo you will well exceed them in the BHP stakes.

I'm afraid that this spec and performance just is not avaliable for a road car, no matter how much money you have.

what sort or power/torque levels do they achieve on these rally cars then?

[marky mark]

They are capped to 300 BHP (or were, not sure about this year) but they give out around 600NM of torque which is around 450 ft'lb

[WR1 Bro]

They are capped to 300 BHP (or were, not sure about this year) but they give out around 600NM of torque which is around 450 ft'lb

Never a straight answer with you.

[danr55]

They are capped to 300 BHP (or were, not sure about this year) but they give out around 600NM of torque which is around 450 ft'lb

that's a lot of torque compared with BHP!

[presa900]

The figures for the current subaru WRC car, are 300 bhp and 650Nm (480 ft/lb) and that peak torque comes in very early at 3000rpm

The torque is almost 74 lb/ft greater than the Ford WRC car and it still can't keep up

Power is limited mainly by the FIA's restriction on the inlet restrictor to the turbo (34mm)