Had my std Spec C on rolling road today for first time - (Surrey Rolling Rd)
25 October 2008, 04:45 PM
#1
Had my std Spec C on rolling road today for first time - (Surrey Rolling Rd)
Not had the car on rollers since I bought it 6 months ago so wanted to know what bhp & torque it was producing & if map looked good. Most Litchfied, Powerstation generic mapped Spec C's are meant to produce approx 320bhp & thats what i would have been happy with or there abouts.
Though Chris from Surrey Rolling Road did warn me that the rollers at Powerstation are of a different type & always read differently from his. Not that one is right & one is wrong its just how each is designed I imagine. Surrey Rolling Road ones read lower & they have never had a Std Spec C measured more than approx 310bhp. So I lowered my excpectations & hoped between 300 to 315bhp. Only engine mods I have is Blitz backbox (otherwise std exhaust 2.5") & Hyperflow top mount intercooler, with Powerstation map. (edited: Litchfield std UK fuel map)
My 3 quick runs later..................
YouTube - Subaru- MSOC Surrey Rolling Road-Slowboy Racing 25/10/08 Pt2
To say I was happy was an understatement!! And so was Chris from Surey Rolling Road!! Now exscuse me but I must quote his exact words just for my own satisfaction!!!!!!!
" As std its rare for them to make that much "...."that engine was smoooth & car ran like a pussycat on the rollers, didnt move & hardly made a sound"!! " the engine was strong & with no mods & just remap I could easliy see a lot more torque (which wasnt that high) & bhp upto approx 345 to 350bhp as is"
Pardon my modesty!!!
Anyway I also met Neil from Slowboy Racing who organised day & he offered great, helpful advice & had a quick look at my RR Printouts. He also agreed that torque & power could be easliy improved as there is a flat spot at top end, something to do with AFR!!
I leave that to the technical geniuses to analyse the maps!! So very useful & fun morning out that has given me info on which direction to go in, in terms of engine mods next year:
-Decat down pipe mated to my existing 2.5" system with my Blitz Nur Spec backbox.
-K&N filter element
-Maybe 3 port boost solenoid
-Remap with new mods & hope for approx 370bhp
Thanks to all organisers for great day out
Hmmmm..
Though Chris from Surrey Rolling Road did warn me that the rollers at Powerstation are of a different type & always read differently from his. Not that one is right & one is wrong its just how each is designed I imagine. Surrey Rolling Road ones read lower & they have never had a Std Spec C measured more than approx 310bhp. So I lowered my excpectations & hoped between 300 to 315bhp. Only engine mods I have is Blitz backbox (otherwise std exhaust 2.5") & Hyperflow top mount intercooler, with Powerstation map. (edited: Litchfield std UK fuel map)
My 3 quick runs later..................
YouTube - Subaru- MSOC Surrey Rolling Road-Slowboy Racing 25/10/08 Pt2
To say I was happy was an understatement!! And so was Chris from Surey Rolling Road!! Now exscuse me but I must quote his exact words just for my own satisfaction!!!!!!!
" As std its rare for them to make that much "...."that engine was smoooth & car ran like a pussycat on the rollers, didnt move & hardly made a sound"!! " the engine was strong & with no mods & just remap I could easliy see a lot more torque (which wasnt that high) & bhp upto approx 345 to 350bhp as is"
Pardon my modesty!!!
Anyway I also met Neil from Slowboy Racing who organised day & he offered great, helpful advice & had a quick look at my RR Printouts. He also agreed that torque & power could be easliy improved as there is a flat spot at top end, something to do with AFR!!
I leave that to the technical geniuses to analyse the maps!! So very useful & fun morning out that has given me info on which direction to go in, in terms of engine mods next year:-Decat down pipe mated to my existing 2.5" system with my Blitz Nur Spec backbox.
-K&N filter element
-Maybe 3 port boost solenoid
-Remap with new mods & hope for approx 370bhp
Thanks to all organisers for great day out
Hmmmm..
Last edited by rickya; 25 October 2008 at 05:27 PM.
25 October 2008, 04:51 PM
#2
Scooby Regular
Well, there you go, fantastic results Ricky, just goes to show the power of some standard cars, pleased for you fella....can,t wait to get mine mapped by Mr Rawle....
25 October 2008, 05:00 PM
#3
Scooby Regular
Flatspot at the top end..... not sure what he is on about there! But you fuel map is well rich, is he sure his wideband sensor is workin properly on the RR. lol
It has gone off the scale at 4750rpm. Your car must be bad on fuel when on boost! If those AFR figures are right, you could save yourself a bit on your fuel bill and free up some more power!
It is very very safe though.
It has gone off the scale at 4750rpm. Your car must be bad on fuel when on boost! If those AFR figures are right, you could save yourself a bit on your fuel bill and free up some more power!
It is very very safe though.
25 October 2008, 05:09 PM
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Not quite standard though is it with a powerstation remap,uprated top mount and blitz backbox but still very nice figures all the same.My completely standard spec c was ran at surrey rr and made 307bhp 321lb ft which is normal for a bulk standard car 
Last edited by scooby-tc; 25 October 2008 at 05:14 PM.
25 October 2008, 05:13 PM
#7
Thanx guys!
And thanks for knowledge Shaun as I have'nt really a clue what those maps are really about!!Hopefully early next year I'l head down to Powerstation for service & carry out mods as envisaged, along with getting them to remap it.
Shaun am I really that rich on fuel & is it something I should have done immediately?
ps not sure whether he said flat spot at top or sumit!! My fault!
And thanks for knowledge Shaun as I have'nt really a clue what those maps are really about!!Hopefully early next year I'l head down to Powerstation for service & carry out mods as envisaged, along with getting them to remap it.
Shaun am I really that rich on fuel & is it something I should have done immediately?
ps not sure whether he said flat spot at top or sumit!!
My fault!
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25 October 2008, 05:15 PM
#8
Scooby Regular
To be fair to Rickya though......
Don't confuse the PowerStation remap of a standard spec car, with that of a modified car. Now I know that don't make sense, but there is a world of difference. The map on the car is presumably the basic Litchfield UK fuel map, which is literally to ensure it bangs out 320bhp on UK fuel and the standard exhaust. This is what Litchfield states as a standard car from them. Further mapping is available to take the cars up to around 360bhp with supporting mods.
Don't confuse the PowerStation remap of a standard spec car, with that of a modified car. Now I know that don't make sense, but there is a world of difference. The map on the car is presumably the basic Litchfield UK fuel map, which is literally to ensure it bangs out 320bhp on UK fuel and the standard exhaust. This is what Litchfield states as a standard car from them. Further mapping is available to take the cars up to around 360bhp with supporting mods.
25 October 2008, 05:20 PM
#10
Scooby Regular
It's running safe with it running rich. Not a problem in reality, but does mean you will be throwing more fuel down the downpipe than you should and are maybe losing out on some free power potential.
This is assuming, that the AFR read is correct.
For comparison my Spec C when modified on the 2ltr engine pushing 370bhp, flat decked from around 4400rpm (on a DD dyno) to redline at 12.0:1. Unless you understand it, the figures are meaningless.... but it shows there is a difference in fueling.
Like I said.... it looks a very safe map.
This is assuming, that the AFR read is correct.
For comparison my Spec C when modified on the 2ltr engine pushing 370bhp, flat decked from around 4400rpm (on a DD dyno) to redline at 12.0:1. Unless you understand it, the figures are meaningless.... but it shows there is a difference in fueling.
Like I said.... it looks a very safe map.
25 October 2008, 06:06 PM
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Nice result......
Need to put mine on the rollers to see what is making now, have a copy of the report with it's current figures as shown on 'view my scooby' but Iain told me it's had a couple more mods since that was done.
Any ideas how much Powerstation charge?
Need to put mine on the rollers to see what is making now, have a copy of the report with it's current figures as shown on 'view my scooby' but Iain told me it's had a couple more mods since that was done.
Any ideas how much Powerstation charge?
25 October 2008, 09:34 PM
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Nice, for reference my 2002 STI Type UK is running 1.6 bar of boost, so yours looks very conservative. Looks good news for the "power" re-map !
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26 October 2008, 01:34 AM
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Had my Spec C on the rollers at SRR when it really was standard 
ie no mods or remaps ... came in at 294bhp from memory. Was a couple of years ago now.
TX.
ie no mods or remaps ... came in at 294bhp from memory. Was a couple of years ago now.TX.
26 October 2008, 10:30 AM
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It's running safe with it running rich. Not a problem in reality, but does mean you will be throwing more fuel down the downpipe than you should and are maybe losing out on some free power potential.
This is assuming, that the AFR read is correct.
For comparison my Spec C when modified on the 2ltr engine pushing 370bhp, flat decked from around 4400rpm (on a DD dyno) to redline at 12.0:1. Unless you understand it, the figures are meaningless.... but it shows there is a difference in fueling.
Like I said.... it looks a very safe map.
This is assuming, that the AFR read is correct.
For comparison my Spec C when modified on the 2ltr engine pushing 370bhp, flat decked from around 4400rpm (on a DD dyno) to redline at 12.0:1. Unless you understand it, the figures are meaningless.... but it shows there is a difference in fueling.
Like I said.... it looks a very safe map.
26 October 2008, 11:36 AM
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Nice one rickya!!!
I got 381 on surrey rollers on Tuesday that's why i was not there on Saturday but will be back for more next week!
See you at the track day mate
I got 381 on surrey rollers on Tuesday that's why i was not there on Saturday but will be back for more next week!
See you at the track day mate
26 October 2008, 01:14 PM
#23
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Bluenose,
It was around the 11.9:1 mark dropping to 11.8:1 at the top end. Never had any DET on that set-up and EGT's were absolutely fine.
It was around the 11.9:1 mark dropping to 11.8:1 at the top end. Never had any DET on that set-up and EGT's were absolutely fine.
27 October 2008, 12:30 AM
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I'm running low 10's at the red line on my V-Power tune and low to mid 11's on the V-Power plus NF tune. I suppose even for a pro-tuner there has to be some level of margin in the maps.
Even though I'm surprised there wasn't any knock detected running that lean at the red line on just 98 RON. Don't suppose you remember your/know your Total Timing figures after peak torque do you?
Edit - Sorry for taking this off topic btw
Even though I'm surprised there wasn't any knock detected running that lean at the red line on just 98 RON. Don't suppose you remember your/know your Total Timing figures after peak torque do you?
Edit - Sorry for taking this off topic btw
27 October 2008, 10:48 AM
#29
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I have no idea how much ignition was in the map...... but that would be one of the areas that would make a difference, as you are inferring.
Like I said, no knock, no ignition (of any consequence) being pulled in the map as I used to check it regulary with Delta Dash, and IAM was always at 16. BUT.... I did use to bang in NF when I used it for track competition stuff, but only for extra safety. The car was never mapped for anything other than plain pump fuel.
Like I said, no knock, no ignition (of any consequence) being pulled in the map as I used to check it regulary with Delta Dash, and IAM was always at 16.
BUT.... I did use to bang in NF when I used it for track competition stuff, but only for extra safety. The car was never mapped for anything other than plain pump fuel.
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