john banks

All interesting reading. Is there anything available in the UK to tizzy up a TD04L?

dowser

John

I hear the guy who modified my friends turbo (my98 also uses td04) has also got another td04 with replaced compressor wheel in stock - supposedly good for 300PS

If you're interested I can check the price? I'm also considering it, but am waiting to try my friends first (he's got an older version, good for 275PS) - I'll also get him (Ric) to post on here if he's around.

Richard

john banks

Interested in any info Richard.

ric

Hello everybody,

It is me that has a modified (hybrid) TD04 turbocharger.

I fitted it about 3 weeks ago and it is abosolutely stunning!!!! The car just pulls more in every rpm range! When you are on boost, you can feel how much more air the upgraded TD04 is pumping - at the SAME spool up time. When I first drove my car I was just IMPREZZED!

My friend who does these turbochargers, basically has two stages of compressor wheels:

The first one (the one I have) spools up as fast as a OEM turbocharger and ist good for around 275bhp.

The second one (compressor wheel of an Audi RS2) is a bit slower in spool up, but is then good for around 290bhp.

I could also drive the 290bhp charger on a modified Forester Turbo - that car was running 1bar boost and was a LOT faster than my MY98 with exhaust system and cold air duct.

Anyway the price is about half of a IHI-VF turbo. I could once try a VF23 and spool up was VERY bad.... :-(

Finding the right compressor wheel and fitting it to the OEM turbocharger is really a thing that only specialists can do. The compressor housing has to be modified.

My car is running with 1.3bar peak boost (I use FCD and bleed valve) dropping to 1bar@6000rpm. Its incredibly fast. My gearbox it suffering and also the clutch reaches the limit. There are a few guys with the 290bhp stage and they all need upgraded clutches (and sometimes new gearboxes). My car is absolutely safe - we checked for knock and fuelling. (still running quite rich).

hello from Switzerland
ric

PS He has a 290bhp charger in stock just now - it's 1000SFR when you hand in your old OEM charger. The upgraded charger comes completely balanced and fits perfect (logically...hehe)

john banks

£416 sounds very good indeed. How much for the kit you have? Do you think there would be much benefit in a remap? This turbo will keep the charge temps lower if you kept the same boost - obviously the MAF will read appropriately and you are getting good fuelling. Maybe the remap would help ignition advance in particular?

How many hours labour to fit a new turbo do you think? About 2 hours?

Presumably I could pay the full price get one sent over and then send mine back and get some money back? Anyone in the UK doing this?

Excited - you bet...



[Edited by john banks - 1/29/2002 10:24:25 AM]

[Edited by john banks - 1/29/2002 10:26:12 AM]

mutant_matt

John,

Probably a good place to equire about this would be Turbo Dynamics. They seem to be the most popular place for doing Hybrids and the like.....

Matt

ric

Hello John,

Both stages of turbochargers cost about the same.

They once tried these chargers with a remap and noticed that there are no power/torque gains to be had with it. The OEM ECU is spot on. Although with the remap you can save a bit of fuel.

I fitted the turbo myself, basically it is an easy job but sometimes fiddly. You need a lift. Once you removed the downpipe and intercooler the turbo just has 3 screws and you need to remove water/oil supply. If you are not a mechanic I would say you should plan 1 day to do everything ok. (of course a mechanic can do it within 2 hours).

No problem, you pay a full TD04 price, we send it over to you, you change it and send your TD04 back and we give you the money back. (Richard and me will help you).

From all I've read about you John, I think you should try the 290bhp charger. You will be *VERY* happy with it....I can promise......hehe ;-( It is not that you get just more boost in the top end, the car just pulls stronger everywhere on boost, as there is much more air (at lower temp).

It has to be said that it is a very friend of me that does these chargers and I don't earn anything by helping you to get one of these. I am just a Scoob enthusiast (Richard can confirm).

seeya
ric

Adam M

Actually , for TD series mitsubishi turbos, I woul have thougth owen developments would be a better bet.

These were the people who mdded the entry of pats td05 to remove the 90 degree restriction.

I dont know if I would bother going with mosd on the mitsubishi turbos. The IHIs are roller bearing turbos meaning they spool up faster, there also seems to be more that can be done to them too at the hands of turbo dynamics. They are not as robust so antilag apparently isnt a good idea.

john banks

I am grateful to you all for your assistance as well as I am sure the thread poster!

More data would be nice - dyno plots, intake temps, compressor maps etc.

Come to think of it, anyone got an accurate compressor map for a TD04L 9B?

What size are these compressor wheels that are fitted?

Puzzled about spool up - this was my main concern with bigger turbos as well as frying clutches and gearboxes, but I don't track the car yet, so might have a chance. Also don't want the hassle and expense of FMIC, so moderate gains are what I am after.

So which IS quicker to spool up - hybrid TD04 or VF series?

Dyno graphs? I know they are useless, but....

ric

Having driven a VF23 I can say for sure that the hybrid TD04 are (much) quicker to spool up.

Actually there is just a marginal difference on my car from before.

ric

JamesS

Ric & Co, thanks for the update.

Any comparisons to the VF29?

Stelios - what boost were you running just before the pipe shut with VF29? Any idea what the charge temperature was at that point?

Cheers!

john banks

Some of the guys running VF series turbos don't rate modded compressor wheels on TD04. I would like to see compressor maps for these turbos if possible.

I could be seriously interested in this. I know some say Scoobies do not cope well with big turbos in terms of gearbox and clutch, but I am not really very hard on the car honest!

JamesS

The MRT website has a summary document for the various turbo`s. Reasonable info.

It does mention an interesting thing however;

Apparently the splitter (?) in the exhaust mounting flange is a different length depending on TD or VF series turbo.

This means a TD series will not physically fit on a flange for a VF series turbo.

Conversley and perhaps of more interest - when fitting a VF series to a TD car ie most of us, there will be a gap above the too short flange. Result; loss of power & torque, more temp etc etc.

Anyone know if this is the case?

PS A friend has a GT4. Makes a thing about having a dual entry turbo (often becomes twin turbo with confused owners!!!). Now I know the idea, does a scooby employ this as well?

SecretAgentMan

I've read that too, the splitter thing...I installed my VF24 myself, and I didn't see no frickin splitter, not in the OE uppipe, nor in the Scoobysport downpipe.

The OE downpipe has none either, besides from the wastegate outlet being totally blocked off.

/J

bwhinnen

Can't comment on most Dump Pipes, but the MRT one and the BPM one come with Splitters.

The MRT one (I'm sure someone will correct me if wrong) is pretty generic as it will bolt up to a TD04 without a problem, this probably means its too short for the VF series.

The BPM Dump can be purchased for either TD or VF Turbos, if you buy the Dump Pipe when you have a TD series and then purchase a VF let BPM know and they should send you a new splitter that you'll have to have welded onto the DP.

All you really need is a piece of steel that projects into the back of the turbo and about 15 - 20mm down into the DP (for the open mouth style DP) obviously for the Dual Dump design it gets welded onto the flange. For the other side, measure up into the base of the compressor side and see how much depth you need. Of course make sure the welds are spot on so it doesn't come apart

HTH

Brett

john banks

Back to the top.

Still trying to decide about this hybrid TD04L. Some say do some say don't. That or a FMIC. I fancy the 300PS(295BHP) version.

Are there any compressor maps available for the hybrid?

ric

Hello John,

sorry, I havent got any maps or more information on these chargers. Its not me that builds them.

mail me offline if you have specific questions and I will ask the guy that builds these units.

ric

dowser

I drove Ric's car last week - like a PPP that just keeps on pushing at high revs. I rarely see 6k rpm on my car, it would have been rude to even think about changing gear before 6.5k rpm in Ric's Ric - what boost levels are you running above 5k?

I will probably go for the 300ps version. Ric - any news on a try of a car with one fitted (Forester)?

I also have to mention the brakes - the Movit kit is fantastic (every mm of pedal makes a difference), along with the suspension it makes it a good package....and a very, very quick car

Richard

ric

I would have to measure the boost levels again. I just know that my boost goes back to 1 bar@ around 6500rpm. Doing an interpolation with 1.35bar @ 3000rpm suggests that I must run around 1.15-1.2bar @ 5000rpm.

Will have to call the guy that does the turbos. I actually drove it and it is just VERY close to mine (difference not really noticeable). Am visiting him with a friend who wants an exhaust system on his S3 Audi. You could come along and the guy with the Forester could have a test drive with you.

Yep, the Movit/Jaz-Traction Porsche kit ist just AWESOME. I don't really want to comment on these brakes before using them on track the 24th March at Dijon (are you coming too Richard?). I will do a post on the boards how they worked. What I can say at the moment is, that they brake much harder than the Prodrive brakes. And where I used to get judder with the Alcon kit, my discs now don't even get hot.

ric

dowser

Thanks Ric - Yes and Yes!

I pick up the old bumper today (I got the car last Friday, but bumper had to wait for insurance to say 'OK'!) - can you arrange this for one afternoon next week?

Re. Dijon, yep - please email details. Mind you, with the new diff. initial testing suggests the tyres and brakes will quickly become a problem

Richard