i am looking into a new turbo for my sti and am thinking of uprating my pistons and rods to hold more power does anyone have any advice on a turbo that would work well on a 2.0l i am looking to run a high 10, 1/4 mile on a full road going car

 

Your car weighs about 1340kg IIRC... so I think you'll be looking at at least 550+ bhp to break the 11sec barrier:-

http://www.letstorquebhp.com/calculator.asp

Power at Flywheel (BHP) : 550
Weight without Driver (KG) : 1340
Power to Weight Ratio (BHP Per Ton) : 417.04
0 - 60 (Secs) : 2.94
0 - 100 (Secs) : 6.97
60 - 100 (Secs) : 4.03
Quarter Mile (Secs) : 11.39
Terminal Speed (MPH) : 127.86
Drag Strip Quarter Mile (Secs) : 10.99
Drag Strip Terminal Speed (MPH) : 132.33

MD321V is a popular standard position turbo choice - could see well over c.550 with a big boost/aggressive timing map for V-Power + meth/E85...

 

also you would need a well strong engine build which would cost you about 6 grand and a nice gear box 2000 grand tubro 1500 and all the other bits and bobs but it would be fun

 

Yep, it ain't cheap when going past 350bhp...

Exponentially more so when going from 400 to 500+

 

Fun though!

 

Oh without doubt!

I've got a load of stockpiled goodies lol (FMIC/740s/IK/Z32 MAF/ported headers & up-pipe) ready to go on and be remapped. Hope to max the TD05 16g out for around 340-350bhp...

May go again with more mods (STi 3/4 heads, MD321T, etc.) much later on, for over 400+...

 

you should see 340 easy with that list of mods just a shame you anit got a td05 18g you would be around 370

 

Why change the heads? My bugeye STi runs 400 bhp with only bolt on goodies, FP Green turbo, MRT FMIC, APS parallel fuel rails, APS 3" exhaust with sports cat, 650 cc injectors, uprated pump, Aeromotive FPR, RCM tubular manifold and is controlled by a GEMS ECU. It is easy to drive round town doing the shopping and good fun when opened up.

Enjoy which ever route you take as they all end up at the same place. A with a bit of a followed by a as you think I need to fill up again.

 

Worried about my nearly 16yo 5-sp gearbox!!! So will get to 340bhp first and see how I get along (or otherwise I prob would have gotten a 18g or HS380).

If I get 'bored' of 340 and/or am brave/stupid enough to go for more later, then I'll get a 321T to get over 400...

 

All heads post MY96 are fine for around 500+.

Unfortunately, my early v.1 WRX hydraulic ones apparently suffer stange surging problems when, I think, about 380+ is reached and have trouble maintaining the power... Or something like that.

 

sti7 engine is strong enough for mid 400s without issue..

MD321T.. you won't get a 10 1/4 in full road trim though, need some serious mods to get that etc..

Simon

 

Rotate the turbo and go GT30 or 35 or if your really brave with NOS and GT40 yum yum

 

on a 2litre road car

 

jgm what sort of turbo would you advise on the 2 litre to achieve the high 10.s i might go for a 2.1 stroker kit aswell HELP NEEDED APPLY WITHIN.

 

best example would probably be Morb's wagon whcih is on a 2.1L a GT3040R if I remember correct and is running low 10s but is stripped out classic..
That made 570bhp.. I would imagine you are going to need that much to get high 10s in a newage..

Simon

 

Andy.F manages a 11.0 dead with his T in a fully trimmed car but thats a 2.5, so the T is good for it if more weight were lost im thinking?

 

Andy is running a Spec C, depending on model its upto 90KG lighter than the standard STI so it makes a difference iirc 1290kg on the v7 & v8. Still a nice result though.

 

Ideally, you would need something of similar spec to these to get a newage anywhere near the 10s that is bullet proof reliable:-

https://www.scoobynet.com/trader-ann...completed.html

 

Just me getting excited again thats alll

 

Not to forget that this is the inexperienced ANDY.F your referring to lol All i'm trying to say that his times in any car are pretty good.

 

I Agree the result of that was largley do to the very experienced driving of MR F the car and 5 speed box iirc, it's just when planning its a case of the lighter the better and unfortunalty the New age cars as we no have the weight issue so you will always be up against the cost factor and more so.
We have 2002 Spec C here which "On paper" is 1290kg with out driver, fuel etc, we can trim upto 40KG without going insane but this compared to a well stripped classic is still near 200KG more, thats like driving up the strip with your family in the car or in simons case with the caravan in tow .
Even at this weight you would need more over 500Bhp and that a 5 speed box to sniff a high 10 imo.

 

would be interesting to get a newage on the scales.. a classic RA is nearer 1285kg with all fluids.. my classic uk with cage and a reasonable weight loss is 1228kgs with 3/4tank of fuel..
I should get my newage on the scales to compare but I know I would then start stripping it of weight if I did that and trying to keep it fully trimmed. But considering on paper the classic is quoted at 1235 for 4door and 1270 for 5door I think they are a reasonable way off the actual weight.

Simon

 

So Subaru's quoted dry weight figure of 1170kg(!) (or, say, c.1200kg with all fluids) for the very first RA is a load of bull then?

 

well if my memory is correct 1284 for an RA.. on proper scales not paper

 

Sure. I'm inclined to agree.

Even with the Impreza's impressively (there's a tonguetwister) lightweight body panels, I was always a little sceptical of Subaru's weight claims of, certainly, the early models i.e. of those quoted around the 1200kg mark.

 

they quote the dry weight. which is a bit pointless really.. they don;t run for long with no fluid but it is difficult as fuel tank level can vary.. on persons empty is another fill up tomorrow

 

Yeah, my post took into account dry weight quotes from Subaru.

How many kg's do you reckon: a full-up washer bottle; all engine/tranny/diff oils; the coolant; and 50 litres of petrol, adds up to?

 

Circa 130KG's i would say.

 

Yeah, I'd agree with a ballpark of over 100+kg.

Blimey, it's well significant in sullying the power/weight!

 

Yeah, I'd agree with a ballpark of over 100+kg.

Blimey, it's well significant in sullying the power/weight! ... Which is why I normally put in a max. of only 20 litres in (although it lasts bugger all time ).