power from sc46 on forged 2.5
15 October 2013, 06:11 AM
#1
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power from sc46 on forged 2.5
just had my 2006 sti forged with cdb and rcm fuel pump/reg/parallel rails/1000ccinj/tgv delete/ full 3 inch milltek/hdi fmic and only got 437bhp/465 foot pounds
mapper was a bit surprised thats all he could get from the car as being a 460 capable turbo thats what i was expecting as a minimum
what have other people had from this set up...only people running the sc46 on a 2.5 sti as a comparison...have asked around and on straight v power it seems to be between 440-460bhp
this was at 1.65bar boost as raising boost gave another 10bhp but started detting
mapper was a bit surprised thats all he could get from the car as being a 460 capable turbo thats what i was expecting as a minimum
what have other people had from this set up...only people running the sc46 on a 2.5 sti as a comparison...have asked around and on straight v power it seems to be between 440-460bhp
this was at 1.65bar boost as raising boost gave another 10bhp but started detting
Last edited by p1junkie; 15 October 2013 at 06:12 AM.
15 October 2013, 07:06 AM
#4
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Mine made 440/430 on VPower with standard ECU
Had a new 7.5cm Exhaust housing on the turbo (after old 7cm one cracked) and now running Syvecs with 468/442 on Vpower, 501/468 +20% meth @ 1.7 bar
Had a new 7.5cm Exhaust housing on the turbo (after old 7cm one cracked) and now running Syvecs with 468/442 on Vpower, 501/468 +20% meth @ 1.7 bar
15 October 2013, 07:16 AM
#5
Sorry, my 440 was actually 438!
Still, 465ftlbs ...... nice!
I limited mine to 1.5bar as its standard liners (no cdb insert or pinning etc), so probably had more to give.
Also on syvecs.
Still, 465ftlbs ...... nice!
I limited mine to 1.5bar as its standard liners (no cdb insert or pinning etc), so probably had more to give.
Also on syvecs.
15 October 2013, 07:33 AM
#6
To the OP. That's a great torque figure. Perhaps on another rolling road you'd get more - some are stingier than others. Atmospheric conditions may be a factor? Slightly old fuel - even if it's straight from the pumps there may be some degradation of the stated ron. I'd have hoped for a figure in the 40's or 50's. Mind you, it's how the car feels on the road that counts. I'm sure it's a great drive.
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15 October 2013, 09:22 AM
#8
A forged 2.5, but twinscroll sc46 here.
I agree with tidgy. Cars are different, builds are different, rollers are different, days are different, and so on and so on....
To be honest I was expecting power to be less, but torque to be more, but at the end of the day, its how it feels driving on the road that matters. I only had it on a dyno because people were asking me what power it was making, and I didn't know. I've no intentions of ever putting it back onto rollers, as I'm happy with the way it feels. More power than I can cope with, and it makes me smile every time I drive it..Surely that's all that matters
I agree with tidgy. Cars are different, builds are different, rollers are different, days are different, and so on and so on....
To be honest I was expecting power to be less, but torque to be more, but at the end of the day, its how it feels driving on the road that matters. I only had it on a dyno because people were asking me what power it was making, and I didn't know. I've no intentions of ever putting it back onto rollers, as I'm happy with the way it feels. More power than I can cope with, and it makes me smile every time I drive it..Surely that's all that matters
15 October 2013, 01:39 PM
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1. Under steer is hitting the wall with the front of your car.
2. Over steer is the wall with the rear of your car
3. Bhp is how fast you hit the wall
4. Torque is how much of the wall you take with you.
15 October 2013, 05:35 PM
#17
That's a mad torque figure.
My SC42 made 439/385 on my 2.0 STI (standard engine) with an Alcatek on V-Power.
Going to add a 3 bar map sensor shortly to see if we can raise torque a little more but tbh the car drives very well at the moment - with a forged 2.5 the acceleration and spool must be fantastic
My SC42 made 439/385 on my 2.0 STI (standard engine) with an Alcatek on V-Power.
Going to add a 3 bar map sensor shortly to see if we can raise torque a little more but tbh the car drives very well at the moment - with a forged 2.5 the acceleration and spool must be fantastic
Last edited by MrNoisy; 15 October 2013 at 05:38 PM.
15 October 2013, 05:39 PM
#18
That's a mad torque figure.
My SC42 made 439/385 on my 2.0 STI (standard engine) with an Alcatek.
Going to add a 3 bar map sensor shortly to see if we can raise torque a little more but tbh the car drives very well at the moment - with a forged 2.5 the acceleration and spool must be fantastic
My SC42 made 439/385 on my 2.0 STI (standard engine) with an Alcatek.
Going to add a 3 bar map sensor shortly to see if we can raise torque a little more but tbh the car drives very well at the moment - with a forged 2.5 the acceleration and spool must be fantastic
what headers you running?
15 October 2013, 05:56 PM
#19
Dunx once said to me, "dont get hooked on figures, its how it drives thats important"
10 Impreza's in, and I can say that loads of power doesnt necessarily make you quicker, its everything else that make the "package" that make a car a real driving experience.
Back on topic though, Ive an SC46 that once finished will be mapped on my 2.0 motor, If I get anywhere MrNoisy i'll be happy, but of course i'll be pushing the best I can from it inc 20% Meth
I would like to see a little more torque than MrNoisy, but ultimately numbers are pub talk anyway 
Rob
ps - your numbers are not to be sniffed at, thats a nice torque figure !
10 Impreza's in, and I can say that loads of power doesnt necessarily make you quicker, its everything else that make the "package" that make a car a real driving experience.
Back on topic though, Ive an SC46 that once finished will be mapped on my 2.0 motor, If I get anywhere MrNoisy i'll be happy, but of course i'll be pushing the best I can from it inc 20% Meth
I would like to see a little more torque than MrNoisy, but ultimately numbers are pub talk anyway Rob
ps - your numbers are not to be sniffed at, thats a nice torque figure !
15 October 2013, 07:27 PM
#20
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seems my figures arent all that bad after all
its only on v power no meth
might run some meth just to ward off any det just in casebut keep it mapped for v power
guess i was over hopefull i wanted aroung 460bhp and 500 torque
its only on v power no meth
might run some meth just to ward off any det just in casebut keep it mapped for v power
guess i was over hopefull i wanted aroung 460bhp and 500 torque
15 October 2013, 07:43 PM
#22
Hi there
On yours setup I would expect little bit more as you have all important parts fitted,but this can be RR setup,on different one such as RCM or Surrey RR there you will have different numbers
On the methanol you should be looking at higher bhp/torque figures,we are gained on meth around 40bhp with 40-50lb-ft
Jura
On yours setup I would expect little bit more as you have all important parts fitted,but this can be RR setup,on different one such as RCM or Surrey RR there you will have different numbers
On the methanol you should be looking at higher bhp/torque figures,we are gained on meth around 40bhp with 40-50lb-ft
Jura
16 October 2013, 06:16 AM
#24
For a 2.0 and SC42, mine is exactly where it should be based on other runs with SC40 and SC42's I've seen at SRR - they don't make as much torque as the MD series by the looks of it.
I'm running Harvey tubulars (same as RCM/GT SPEC/Kakumei etc) with a 3 bolt Harvey up pipe, had a play with a forged 2.5 running a 20g yesterday and the cars were pretty much evenly matched tbh so I'm happy with that.
In hindsight might have gone for an MDX321T as they tend to make higher torque figures but they're a lot more money than I could afford at the time, and for the sake of another 10ft/lbs just wasn't worth it.
I'm making nearly the same power and torque on V power as a T now anyway
Last edited by MrNoisy; 16 October 2013 at 06:40 AM.
16 October 2013, 06:36 AM
#25
Actually I'd say your torque figure is exceptionally high for a vf35 (which normally max out around 320-330 ft/lbs at SRR), unless you're on a 2.5.
For a 2.0 and SC42, mine is exactly where it should be based on other runs with SC40 and SC42's I've seen at SRR - they don't make as much torque as the MD series by the looks of it.
I'm running Harvey tubulars (same as RCM/GT SPEC/Kakumei etc) with a 3 bolt Harvey up pipe, had a play with a forged 2.5 running a 20g yesterday and the cars were pretty much evenly matched tbh so I'm happy with that.
In hindsight might have gone for an MDX321T as they tend to make higher torque figures but they're a lot more money than I could afford at the time.
For a 2.0 and SC42, mine is exactly where it should be based on other runs with SC40 and SC42's I've seen at SRR - they don't make as much torque as the MD series by the looks of it.
I'm running Harvey tubulars (same as RCM/GT SPEC/Kakumei etc) with a 3 bolt Harvey up pipe, had a play with a forged 2.5 running a 20g yesterday and the cars were pretty much evenly matched tbh so I'm happy with that.
In hindsight might have gone for an MDX321T as they tend to make higher torque figures but they're a lot more money than I could afford at the time.
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16 October 2013, 07:10 PM
#28
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steve had another go today and 445bhp and 475 foot pounds i think i will be happy with that and prob just use some octane booster from rcm rather than mess around with meth as the car isnt a daily driver more a hobby
16 October 2013, 07:59 PM
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Is this a blue hawk in group b by any chance was there today for my mappin
If it is where did you get that wind deflecter from also the carbon fibre door trim
If it is where did you get that wind deflecter from also the carbon fibre door trim
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