sti v7
21 July 2009, 03:07 PM
#1
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sti v7
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 
21 July 2009, 03:23 PM
#2
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...
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...
Last edited by joz8968; 21 July 2009 at 03:51 PM.
21 July 2009, 03:35 PM
#3
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money
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
21 July 2009, 04:09 PM
#6
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+...
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+...
Last edited by joz8968; 21 July 2009 at 04:10 PM.
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21 July 2009, 07:54 PM
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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+...
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+...
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.
21 July 2009, 08:50 PM
#9
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...
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...
Last edited by joz8968; 21 July 2009 at 09:02 PM.
21 July 2009, 08:58 PM
#10
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.
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.
Last edited by joz8968; 21 July 2009 at 09:29 PM.
21 July 2009, 10:02 PM
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MD321T.. you won't get a 10 1/4 in full road trim though, need some serious mods to get that etc..
Simon
22 July 2009, 12:04 AM
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That made 570bhp.. I would imagine you are going to need that much to get high 10s in a newage..
Simon
22 July 2009, 01:43 AM
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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?
22 July 2009, 07:25 AM
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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.
22 July 2009, 09:38 PM
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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
https://www.scoobynet.com/trader-ann...completed.html
23 July 2009, 09:23 AM
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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.
23 July 2009, 10:03 PM
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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.
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.
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
24 July 2009, 12:05 AM
#25
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.
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.
Last edited by joz8968; 24 July 2009 at 12:08 AM.
24 July 2009, 12:15 AM
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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
but it is difficult as fuel tank level can vary.. on persons empty is another fill up tomorrow
24 July 2009, 10:21 AM
#27
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? 
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?
Last edited by joz8968; 24 July 2009 at 10:24 AM.
25 July 2009, 12:30 PM
#30
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 
). 
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 ).
Last edited by joz8968; 25 July 2009 at 12:33 PM.