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Re: Finally Its Going to FC Performance ...
[Re: Nigel]
#1251268
20/08/2011 00:15
20/08/2011 00:15
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tricky
Unregistered
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tricky
Unregistered
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Even on the same dyno on the same day but with a different operator can loose or gain you power. On the jap car forums, everyone quotes actual wheel horse power which is a better comparison between dynos / circumstances.
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1251449
20/08/2011 15:56
20/08/2011 15:56
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Joined: Dec 2005
Posts: 5,405 Castle Combe
Flea
Forum is my life
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Forum is my life
Joined: Dec 2005
Posts: 5,405
Castle Combe
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Well misfire cured, I'll let Roger fill you in with that one The final results are 401bhp & 351lbs/ft (1.7bar dropping to 1.2bar) It is an interesting spec, not your usual mix of goodies. The turbo is an unknown quantity, but it is from a Nissan Skyline (GTR I think), although not sure if it had been modified prior to Roger purchasing. The only real restriction on the setup is the standard downpipe (yes standard!), which was converted to a 5-stud flange. It would likely spool up a bit quicker and perhaps a little more top end too with a larger downpipe, although the boost would still drop off naturally due to turbo efficiency. It's very fast, strangely feels quicker than 400bhp. The only other problem is that the CG Motorsport paddle clutch is not coping very well at all! I am sure you will love it Roger
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1251455
20/08/2011 16:06
20/08/2011 16:06
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rAzOr_20vt
Unregistered
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rAzOr_20vt
Unregistered
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A misfire well cured then haha!! Thanks again Leighton. A larger downpipe will be on my shopping list Roll on next week for getting it back
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1251466
20/08/2011 16:57
20/08/2011 16:57
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Joined: Apr 2010
Posts: 1,174 Reading
alexjames
Enjoying the ride
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Enjoying the ride
Joined: Apr 2010
Posts: 1,174
Reading
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Good result there, especially with the oe DP!
Ex Fiat Coupe Plus 20vt Electric blue | 62 trim hybrid | Flea mapped
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1251470
20/08/2011 17:03
20/08/2011 17:03
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rAzOr_20vt
Unregistered
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rAzOr_20vt
Unregistered
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Thanks mate ! Turbo has a unique 5 stud flange so more cutt and welding needed to the 3' downpipe whenever i get it.
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1251488
20/08/2011 17:48
20/08/2011 17:48
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rAzOr_20vt
Unregistered
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rAzOr_20vt
Unregistered
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I was hoping for 400bhp and i got 400bhp I will prob end up changing the downpipe over time but my main issue is the new CG Motorsport Paddle clutch, rather annoyed about that but s**t happens. I am very happy with the results, torque is quite similar to that of the cars 430bhp+
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Re: Finally Its Going to FC Performance ...
[Re: Flea]
#1251505
20/08/2011 18:56
20/08/2011 18:56
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Joined: Dec 2005
Posts: 1,670 SW London
Rudidudi
My life on the forum
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My life on the forum
Joined: Dec 2005
Posts: 1,670
SW London
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However, exhaust size is more significant in general, so for maximum performance you should always increase diameter appropriate to the demands of the engine. Do you see a shift in terms of high end gain at the expense of (relative) bottom end loss? Ive generally seen low torque loss when exhausts are fitted to facilitate higher rpm gains - unless of course the std pipe is causing a restriction throughout the rev range.
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1251576
20/08/2011 22:05
20/08/2011 22:05
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Marco20valveT
Unregistered
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Marco20valveT
Unregistered
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Cracking result guys!! Flea, you sick of spontaneous blue coupes yet?? Shame it's not there on Thursday as it would be nice to see it!!
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1251638
21/08/2011 00:59
21/08/2011 00:59
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Joined: Oct 2006
Posts: 1,829 kidderminster
nick_d
My life on the forum
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My life on the forum
Joined: Oct 2006
Posts: 1,829
kidderminster
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mine may be there thurs with a bit of luck, desperately needs some flea diagnostic work first before mapping..... nice results by the way buddy! i went from 267 to 306 bhp just by changing standard exhaust (and downpipe) to straight through 2.5" system.... Reckon you'd see nigels figures with full 3" system and map tweak?? thats gotta be highest power with standard dowpipe?? Luke had 357 iirc with standard dp?? Bigger turbo though so shows how good head work is prob the main component for making more POWA!
368bhp @ 1.5 bar
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1251663
21/08/2011 08:30
21/08/2011 08:30
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Joined: Dec 2005
Posts: 2,194 Göteborg, Sweden
Freddan72
Competition Level
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Competition Level
Joined: Dec 2005
Posts: 2,194
Göteborg, Sweden
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Great result!! Wasn't the clutch absolutely new? 1.7 bar is massive. I also saw that on the rollers but don't use it on the road due to torque steer.
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1251817
21/08/2011 19:01
21/08/2011 19:01
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Joined: Feb 2007
Posts: 3,486 London Tan
technics
I need some sleep
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I need some sleep
Joined: Feb 2007
Posts: 3,486
London Tan
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Nice results, I never had a guess but said you should just about see 400bhp with the setup you have. Nice.
Now in the 400+ bhp club!
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Re: Finally Its Going to FC Performance ...
[Re: technics]
#1252009
22/08/2011 00:27
22/08/2011 00:27
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sparkyman
Unregistered
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sparkyman
Unregistered
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Nice one Roger By the way is your hair still pinkish in bits Young guys these days and their hair, you diva
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Re: Finally Its Going to FC Performance ...
[Re: nick_d]
#1252067
22/08/2011 09:57
22/08/2011 09:57
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Joined: Dec 2007
Posts: 2,252 Windsor/ Reading
knight7660
Competition Level
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Competition Level
Joined: Dec 2007
Posts: 2,252
Windsor/ Reading
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luke had a 3" DP and 2.5" system mate mine may be there thurs with a bit of luck, desperately needs some flea diagnostic work first before mapping..... nice results by the way buddy! i went from 267 to 306 bhp just by changing standard exhaust (and downpipe) to straight through 2.5" system.... Reckon you'd see nigels figures with full 3" system and map tweak?? thats gotta be highest power with standard dowpipe?? Luke had 357 iirc with standard dp?? Bigger turbo though so shows how good head work is prob the main component for making more POWA!
LE53 (452BHp & 389ftlb's with Quaife) Wine red VIS FOOFY Audi RS4 B7
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1253516
25/08/2011 19:17
25/08/2011 19:17
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griffster
Unregistered
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griffster
Unregistered
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whats the torque steer like when it transitions to full boost with throttle wide open?
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1253561
25/08/2011 21:47
25/08/2011 21:47
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rAzOr_20vt
Unregistered
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rAzOr_20vt
Unregistered
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You can certainly feel the torque steer mate but its nothing white knuckles would be required for.
Got my first blast in it tonight... awesome!! and agree with Leighton, it weirdly feels quicker than 401bhp
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1254367
28/08/2011 02:02
28/08/2011 02:02
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Joined: Dec 2007
Posts: 2,252 Windsor/ Reading
knight7660
Competition Level
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Competition Level
Joined: Dec 2007
Posts: 2,252
Windsor/ Reading
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thats a good result on a standard down pipe which will be strangling it to death and maybe some bigger valves.
didnt you get the link for the 5 bolt turbo flange i sent you?
LE53 (452BHp & 389ftlb's with Quaife) Wine red VIS FOOFY Audi RS4 B7
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1254584
28/08/2011 20:35
28/08/2011 20:35
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rAzOr_20vt
Unregistered
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rAzOr_20vt
Unregistered
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No mate i never saw the link, was no problem to make one up anyway :-)
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1255499
31/08/2011 16:32
31/08/2011 16:32
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griffster
Unregistered
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griffster
Unregistered
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You can certainly feel the torque steer mate but its nothing white knuckles would be required for.
Got my first blast in it tonight... awesome!! and agree with Leighton, it weirdly feels quicker than 401bhp could you quantify that? - I am looking to tune a 20VT and only limiting factor south of 350bhp would appear to be torquesteer - with normal grip and attention, how much does car move to the side during strong transition (with casual compensation when detected) - 6 inches, 1 ft....or worse?! - with the tired car i tested, even with keen attention and prompt correction, it still moved over a foot to the right coming onto boost at full throttle - dangerously uncontrollable - factor in that aking you over a backroad crown and you are then fighting to get back to your side of the road (est 290 bhp on tatty 98 car) - second and third gear were frightening, whilst fourth was more than mildly alarming cos of combination of speed and being in middle of road at best...! I dont expect car to remain without deviation through max transition, hands off, even with 260 bhp, however it is vital that whatever power I plump for is no more than a gentle rock of the wheel and with a sensible grip, no appreciable sideward movement - is this really possible with 300+bhp folks? - Tight second gear corners, how prone to spinning nearside wheel rather than getting power down - my test car was ok and put power down well - but 300+bhp?
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1255504
31/08/2011 16:38
31/08/2011 16:38
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Joined: Dec 2005
Posts: 3,620 S Wales
chrissy
Tourque Italia member!
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Tourque Italia member!
Forum is my job
Joined: Dec 2005
Posts: 3,620
S Wales
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You can certainly feel the torque steer mate but its nothing white knuckles would be required for.
Got my first blast in it tonight... awesome!! and agree with Leighton, it weirdly feels quicker than 401bhp could you quantify that? - I am looking to tune a 20VT and only limiting factor south of 350bhp would appear to be torquesteer - with normal grip and attention, how much does car move to the side during strong transition (with casual compensation when detected) - 6 inches, 1 ft....or worse?! - with the tired car i tested, even with keen attention and prompt correction, it still moved over a foot to the right coming onto boost at full throttle - dangerously uncontrollable - factor in that aking you over a backroad crown and you are then fighting to get back to your side of the road (est 290 bhp on tatty 98 car) - second and third gear were frightening, whilst fourth was more than mildly alarming cos of combination of speed and being in middle of road at best...! I dont expect car to remain without deviation through max transition, hands off, even with 260 bhp, however it is vital that whatever power I plump for is no more than a gentle rock of the wheel and with a sensible grip, no appreciable sideward movement - is this really possible with 300+bhp folks? - Tight second gear corners, how prone to spinning nearside wheel rather than getting power down - my test car was ok and put power down well - but 300+bhp? Now get yourself onto 'Countdown'!
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1255507
31/08/2011 16:43
31/08/2011 16:43
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Joined: Dec 2007
Posts: 2,252 Windsor/ Reading
knight7660
Competition Level
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Competition Level
Joined: Dec 2007
Posts: 2,252
Windsor/ Reading
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sounds like the 98 coupe was well ill. your to the fact the front wish bones were probably shot and so was the rest of the running gear. ive drove a few well sorted coupes and they dont torque steer that badly either that or i just have more strength and dont notice the pull that much You can certainly feel the torque steer mate but its nothing white knuckles would be required for.
Got my first blast in it tonight... awesome!! and agree with Leighton, it weirdly feels quicker than 401bhp could you quantify that? - I am looking to tune a 20VT and only limiting factor south of 350bhp would appear to be torquesteer - with normal grip and attention, how much does car move to the side during strong transition (with casual compensation when detected) - 6 inches, 1 ft....or worse?! - with the tired car i tested, even with keen attention and prompt correction, it still moved over a foot to the right coming onto boost at full throttle - dangerously uncontrollable - factor in that aking you over a backroad crown and you are then fighting to get back to your side of the road (est 290 bhp on tatty 98 car) - second and third gear were frightening, whilst fourth was more than mildly alarming cos of combination of speed and being in middle of road at best...! I dont expect car to remain without deviation through max transition, hands off, even with 260 bhp, however it is vital that whatever power I plump for is no more than a gentle rock of the wheel and with a sensible grip, no appreciable sideward movement - is this really possible with 300+bhp folks? - Tight second gear corners, how prone to spinning nearside wheel rather than getting power down - my test car was ok and put power down well - but 300+bhp?
LE53 (452BHp & 389ftlb's with Quaife) Wine red VIS FOOFY Audi RS4 B7
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1255770
01/09/2011 10:23
01/09/2011 10:23
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DaveM
Unregistered
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DaveM
Unregistered
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My last coupe had a full front suspension refresh (new polyflex'd wishbones, drop links, top mounts, and bilstein/eibachs) and it didn't torque steer.
My new one hasn't had all that and it does - getting them done this month and fully expect it to feel more controlled at the front.
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Re: Finally Its Going to FC Performance ...
[Re: ]
#1256543
03/09/2011 17:55
03/09/2011 17:55
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griffster
Unregistered
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griffster
Unregistered
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all very encouraging .. I cant imagine what 350bhp feels like in a Coop ...310 in an STI PPP was pretty alarming, and i am assuming Coop to be far lighter and far less parasitic mechanical losses ...err, if it weighs 10% less and looses 10% less drivetrain friction and is 13% more powerful..err that would suggest it should feel 30% quicker with similar gearing and when the tyre smoke settles down...hmmm, call me sceptical,I am dubious...that would be truly alarming, if not darn right frightening!! - It would also imply easy single figure 0-100 figs... - any 350 Coops out there achieving this?
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Re: Going to FC Performance ... Results.. 401bhp!
[Re: ]
#1256552
03/09/2011 18:59
03/09/2011 18:59
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Joined: Aug 2007
Posts: 8,057 Southsea
Gunzi
Club member 189, Former Club President
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Club member 189, Former Club President
Je suis un Coupé
Joined: Aug 2007
Posts: 8,057
Southsea
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I'd wager the Subaru would be much easier to get a decent launch, and Coupes aren't that light, around 1350kgs kerb weight. Eldinho's 429bhp Coupe can theoretically achieve a sub 10 sec 0-100, with a 12.4 1/4 mile at the 'pod. H2ypr's old Coupe had 334bhp and ran mid 13's 1/4 mile, ~10s 0-100.
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Re: Going to FC Performance ... Results.. 401bhp!
[Re: ]
#1256563
03/09/2011 19:23
03/09/2011 19:23
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jonnyk
Unregistered
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jonnyk
Unregistered
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IMO it's all about the 60-100 figure anyways!
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Re: Going to FC Performance ... Results.. 401bhp!
[Re: ]
#1256754
04/09/2011 12:55
04/09/2011 12:55
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Joined: Feb 2006
Posts: 5,390 Essex
Trappy
Forum is my life
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Forum is my life
Joined: Feb 2006
Posts: 5,390
Essex
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IMO it's all about the 60-100 figure anyways! Using bhp/wheels figures for graphs I have on Track'n'Road's dyno, my calculator gives the following 60-100mph times; 214bhp (standard) 8.95s 292bhp (GTiR) 6.45s 315bhp (GT28RS) 5.64s My estimated wheel power graphs return; 220bhp (estimated) 8.89s 360bhp (estimated) 4.87s Autocar reported a 60-100mph time of 8.5s for a standard car and Top Gear 8.6s for reference.
F****** b****** thing...
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Re: Going to FC Performance ... Results.. 401bhp!
[Re: ]
#1257689
06/09/2011 22:09
06/09/2011 22:09
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griffster
Unregistered
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griffster
Unregistered
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any known modded 20vts going to Gaydon at the weekend?
Anyone know what the show is? - a gathering outside a museum or a proper show? - Trade / tuner stands?
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