stealthy55

dynamix is running bio to get over 500 and so is the other bloke using the v

dave_garrett

iTrader: (24)

Will be fitting a V in the next couple of weeks on my 2.5 build (see projects) and will only be running V-power (for now ), will post results when I get them but I'm hoping to get close to the magic '500bhp' which a lot of people seem to aim for (have been told I should make mid 500's torque wise ).

Will post results when I get them .

Currently making 410bhp/340ft lbs on a 321t @1.5bar (standard internals).

stealthy55

you could have saved yourself nearly 2k by fitting a v to your 2.0. ready for your new build

dynamix

iTrader: (3)

They will be a nice second hand T going soon i would imagine.

The V on the 2.5 is beautiful. If the engine (and clutch/box) integrity is good you can get more than mid 500's lb/ft torque too. Highest mine has read so far is 603 lb/ft @ 2.2 bar peak then tailing off. I am hoping to improve this shortly when I can get some time on the dyno on the full E85 fuel.

dave_garrett

iTrader: (24)

Stealthy, wasn't planning on going over 450/450 orginally (thats why I fitted the 321t a couple of months ago instead of a 321h), then I got a bit carried away , a month after fitting the 't' ended up going the 2.5 cdb route and realised that it could handle a little more than the 321t . Expensive mistake I know but at least someones going to get a cheap 321t only a couple of months old in two weeks time.

Duncan, what do your think of my fuel rails, do they look familiar , think Carl owes you a few drinks for the advertising, if I handn't seen your pics on here I would have bought Perrins.

stealthy55

well at least you know what its capable of on a 2.5, im waiting to see what its capable of on a 2.3

dynamix

iTrader: (3)

The fuel rails are superb. i think Carl is a very clever man for designing and making them. Far more personal to the UK subaru community to use something that 'one of our own' has built. Zen also use them and I know Paul was very impressed with the design, quality and weight of them. Very easy to fit too.

marcus7

iTrader: (14)

How much do these MD321's fetch second hand then? Is there much difference in price between the h, t, t+ and v? Thinking about using one for a sensible budget 2.1.

dave_garrett

iTrader: (24)

Like everything I guess marcus, depends on age, condition, miles.....

marcus7

iTrader: (14)

I suppose. I've only just started looking at these turbos and know they aren't cheap when new. Just wondered what the price range is generally. PM a price on yours

petedotuk

generally speaking the asking price for H & T's is around £1100. At least it was when I was looking!

Anger

iTrader: (4)

I just sold my H for £750 and got my T for £800

Anger

iTrader: (4)

Thought it would have been higher than that Dave, i made 415bhp/367lbs ft@ 1.5 on a H on v-power

dave_garrett

iTrader: (24)

Impressive, I was v-power as well, who/where was yours mapped? What supporting mods did you have?

Anger

iTrader: (4)

JGM has always mapped my cars at Surrey rolling road mate

Spec is fully forged 2.0, sti8 crank, 740's, lateral headers, full 3.5inch decat, simtek and avcr

Just about to fit a T and will be mapped in the next couple of weeks

But that will be going with 10% meth


James

marcus7

iTrader: (14)

Can anyone comment on what the MD321T is like on a 2ltr car? I'm currently running a VF35 and looking to change. How does the MD compare to the VF (lag, spool up, max boost by, etc)?

petedotuk

I have just changed from the vf35 to the T on my 04 sti, spool up is not that much slower than the vf. I was real concerned about going for the T as everything I read was saying they weren't suited to the 2.0l. During the mapping Andy F told me he doesn't think there is any difference in spool between the H & T. Btw I kept my sti tmic don't like fmic.

I tried watching my psi3 in forth gear but the refresh rate isn't fast enough for me to see when 1bar hits although I did see 1.3 @ 3700rpm, mine peaks @ 1.6 and holds it till redline.

It might cost a good bit of money but by god am I glad I bought it!

Jolly Green Monster

iTrader: (4)

Marcus,

Yours is the green uk99?

On sti5/6 usually find they get to 3800rpm and all hell breaks lose and they are not sluggish below 3800rpm either.

Had 504bhp on race fuel on a 2 litre with a T.. 450bhp with vpower

2.5 today was if my memory is correct 460bhp and 510lb on race fuel though.

You would probably lose 600rpm in spool from the vf35.. iirc you engine is standard tohugh so wouldn't las to on the T..

uk engine 99 engine on a H today at 385bhp at 1.4bar.. it would have made more but was holding it back for fear of lunching the box or the engine..

My own V made 491bhp at 1.65bar tailing to 1.45bar yestersday

Simon

Jolly Green Monster

iTrader: (4)

the vvt heads on the newage sti help the spool.. it would be slightly later on a non-vvt car.. 200rpm roughly.. and the newage sti is really the only standard internals strong enough to take it long term

MartynJ

Thanks Mark, lol.

Interesting statement on the fuel though, Methanol has an octane rating of 113 compared to Bio Ethanols 105. Have you tested the same mix of fuels on the same car and do you have any results to show us ?

typeRv4

perhaps given ethanol isn't so harsh on the fuel lines etc people have tried higher concentrations of E85 ?

dynamix

iTrader: (3)

BioEthanol shows the effects of raising octane levels further than its std octane level when mixed with normal fuel. I am sure a petro-chemist will explain the effect. E85 is approx 109 octane.

Using BioEthanol will require less fuel than Methanol (at the same mix %) so I would be dubious over it getting better results than an equivalent mix of methanol. I have no firm data to prove or disprove which gets better results though although I have run both additives and had great results on both.

I prefer using BioEthanol from a handling, safety and availability point of view. (it smells mighty fruity too )

Lateral Performance

iTrader: (20)

Correct. The average Methanol mix is 10-15%, where as people running an E85 mix, tend to start at 20%, many running much more.

dynamix

iTrader: (3)

Some even running 100% E85 (if that isnt a contradiction of terms)

stealthy55

will try the 100% e85 soon as waiting to have bigger fuel pump, i must be on the limit on a standard walbro

joz8968

iTrader: (13)

Simon, would it be wise to run a T on my motor? (see "My Garage" for engine spec.). Will my WRX v.1/2 hydraulic heads not be suitable? If I were to fit STi 4 heads to make suitable, would I also need GT Spec headers and up pipe too?

Assuming STi 4 heads (and headers/up pipe, if required) were fitted, then what would you expect the T to make on 97 ONLY? (my intention is to end up with a 400bhp car mapped on 97... and I'm sure the T can do it).

marcus7

iTrader: (14)

Hi Simon, yes my car is the green uk99 that you've mapped three times now So your nearly at 500 now then

I wasn't really thinking of running this turbo on the car as it is (although it could be fun for a short time ). I'm looking at building a forged 2.0 or 2.1 to drop into the car next year with somewhere between 400-450bhp.

Do you know roughly how much boost and at what power/torque could the T make on my car as it is without the motor or box going pop? I presume the motor is the weak link as on a 2.0 the torque wouldn't be as high so the box could last?

Jolly Green Monster

iTrader: (4)

I presumed it was you Marcus but wasn't 100% as couldn't remember your username

I presumed you would be changing the engine but wanted to make sure.. lol

probably late 300s, 1.2bar perhaps..

yes due to lower torque at that boost and spool later on 2litre the box should be okay for a bit

Simon

Jay_

Out of interest how much slower spooling is the V over the T on a given setup...say a 2.5? ABout 300 rpm? Presumably its much stronger up the rev range tho.

Jolly Green Monster

iTrader: (4)

I went from a T to a V on my current setup and iirc it was about 150rpm.. it wasn't majorly noticable.

Simon