Great results much faster spool and only loosing outto the 321T right at the top end.

The MD321T was not run on meths.

Hay Martyn im up .7% bhp more then you;)
Attachment 50890

But 390tqu to your 400:notworthy

Off tho Kent to blast the car around some country lanes:top:

Good point Martyn.

The T on meth would bring the line to the left a fair bit.

although i love to read these threads it must be very confusing to new members of scooby net

When I purchased my last turbo there were 2 members who ran 400 bhp on an 18g with std wrx engines, I was very tempted but when i talked to my mapped he recommend something different for the 400 bhp figure I had in mind - glad i did as since then I have seen very few cars hit high figures with a 18g - the turbo I fit was great, the mapper did his job and i got the car I was after

to the op I recommend you get hold of a mapper that you fully trust and ask him what he would recommend - there must be many many snetters out there who read threads buy on impulse and end up very disappointed when they take the car to be mapped to be told they would not recommend this turbo \ injectors \ intercooler

I haven't got a clue about turbos ( like many people on snet) I can only compare turbos I have used but I have been tempted to buy things form what other snet menbers have told me and ended up worse off

Rich

Great result Ash, 100bhp up at 4000rpm :eek:

BTW the 411.1bhp graph you posted above is my 2.0L STi5 with the 380, not Martyn's ;)

For reference, the 420 on my car made 444bhp & 398ftlb :)


Jase.

Jase what is the spool like on the 420? If it is anything like the 380 i may have to swap soon:norty:

Graph to Jase's car with the 420

http://i258.photobucket.com/albums/h..._sti/ST420.jpg

Banny

Umm can't really work it out by looking at the graph, all so on my graph the boost comes in faster on the road hitting full boost by 3400-3500k revs.

is that before or after the 10% meth?

I really would love to see a straight comparison between the 18g, 20g, 380, 420, 321H, 321T, 321T+ and 321V on a 2.0L... all on V-Power only.

I know it's asking a lot, but can anybody furnish us with suitable comparisons...

Now that does sound like a lot of work!!! :lol1:

Anything i have put up is with meth, And Jase car is all so run on meth's.

:o Sheesh, I know... but it's something we ALL would love to see, isn't it? The ultimate 'decsion maker'... lol

I know it has been said beforehand but what about the FP green?

Nice result Ash, where is your MD321T? I might take it off you, will be intresting to see how it goes on a built 2.1 stroker setup

It's sold mate:thumb:

agree with the above think we need some if not all of the turbos tested on same car, same fuel etc etc
like scoobyclinic did the intercooler test a while back.. :thumb:

But on what? Standard sti or a built engine. I guess some will perform better with some simple mods whilst others will require more money to be spent to get the most from them.

Surely, the 'best' turbo will be the one that comes on boost the earliest and holds boost the longest, along with a fast spool? :wonder: :D

10%meth isn't going to make that much difference, it may raise the octane but it has 65% of the energy of petrol and any tuner worth his salt wouldn't advance the timing to much on the basis of that, non that I know:)

Whats 65% of energy got to do with anything ? Thats got nothing to do with power.

Im sure that a meth or ethanol mix will give you at least 20 - 50 hp more top end depending on various factors. And it will also gives more power along the whole power curve. So that all helps spool up. The comparision wouldn't look so good if the power curve was 10% less everywhere !

https://www.scoobynet.com/scoobynet-...pressions.html

https://www.scoobynet.com/general-te...ml#post8281012

400hp is a good result in anyones book - but its not really fair to compare them on different fuels. Better fuel is great gives you efffectively a bigger faster spooling turbo.

Yes, fair point. Heads, etc. affect power... and internals dictate what could be run safely, etc. But, as mentioned by supa, it would be nice to just have one as a test 'control' - say, an early WRX, to act as worst case scenario baseliner.


Well, this is the Holy Grail, isn't it? The idea being, that for any chosen bhp/lb ft target, then it should be the best in all the areas you point out. It should have the largest 'under-the-graph' areas for both power and torque. But then, of course, you have the subjective element of personal preference of the turbo's torque delivery - either extremely linear (like a big cu in 8-valve V8 engine), or an old-school "nothing... nothing... BANG!..."-style delivery... Or anywhere in-between... :brickwall

METHANOL 10% gains

not in my experience-10% is in someone's imagination -if it gave that sort of gain there would be a lot more using it. I run 10% meth and the car is mapped for it, didn't make any difference to spool-up. What did make a difference was a water/meth injection system costing loads which allowed more timing resulting in the things you mention, spool-up 300rpm faster and gains across the rev-band- the ignition is nearly maxed now-you wouldn't do that by just adding 10% methanol. Might see 10-15% gains if the car was run on purly on ethanol

As any tuner will tell you cars/mods/turbos are not all created equal - meth / ethanol works better in some cars than others for sure.

Just because it didn't work for your car doesn't mean it will not work for others. And of course the opposite is true.

Yes but on this thread it's assumed that it does work and by some:)

good result ash..:thumb: keeping that box warm for me.:D

Here's a great example of what better fuel can achieve

Attachment 50885

https://www.scoobynet.com/general-te...ml#post8587479

My experience with Meth is that a 10% mix is generally good for 7% extra power and maybe 2-300rpm in terms of spool up if mapped for it across the whole range. This does get better the higher the mix of course, I have seen on a T (Plugging the competition again Mark, lol) gains of nearly 50hp and 90lbft on a 20% mix when mapped for the extra ignition and boost.

Yep it's still here waiting for you:top:

Ash, would it be worthwhile asking Slowboy if the timing was changed in view of the methanol on the HS380, or not?
Trevor

Thats fair enough buddy.
Trevor:)