Going to FC Performance ... Results.. 401bhp!

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Re: Finally Its Going to FC Performance ... [Re: Nigel] #1251268 20/08/2011 00:15 20/08/2011 00:15
T tricky Unregistered
tricky Unregistered T	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.

Re: Finally Its Going to FC Performance ... [Re: ] #1251449 20/08/2011 15:56 20/08/2011 15:56
Joined: Dec 2005 Posts: 5,405 Castle Combe Flea Forum is my life
Flea Forum is my life Joined: Dec 2005 Posts: 5,405 Castle Combe	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

Re: Finally Its Going to FC Performance ... [Re: ] #1251455 20/08/2011 16:06 20/08/2011 16:06
R rAzOr_20vt Unregistered
rAzOr_20vt Unregistered R	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

Re: Finally Its Going to FC Performance ... [Re: ] #1251456 20/08/2011 16:15 20/08/2011 16:15
Joined: Dec 2005 Posts: 1,670 SW London Rudidudi My life on the forum
Rudidudi My life on the forum Joined: Dec 2005 Posts: 1,670 SW London	if you change downpipe, wont a new remap be needed to optimise as more top end fueling may be possible ? id be keen to see before and after graphs, my experience in turboing a rover v8 was that the exhaust restrictions were secondary to the poor flow of the heads and increasing boost didnt liberate any more power but shifted the torque lower down the rev range, which for a road car was ideal.

Re: Finally Its Going to FC Performance ... [Re: ] #1251466 20/08/2011 16:57 20/08/2011 16:57
Joined: Apr 2010 Posts: 1,174 Reading A alexjames Enjoying the ride
alexjames Enjoying the ride A Joined: Apr 2010 Posts: 1,174 Reading	Good result there, especially with the oe DP! Ex Fiat Coupe Plus 20vt Electric blue \| 62 trim hybrid \| Flea mapped

Re: Finally Its Going to FC Performance ... [Re: ] #1251470 20/08/2011 17:03 20/08/2011 17:03
R rAzOr_20vt Unregistered
rAzOr_20vt Unregistered R	Thanks mate ! Turbo has a unique 5 stud flange so more cutt and welding needed to the 3' downpipe whenever i get it.

Re: Finally Its Going to FC Performance ... [Re: ] #1251471 20/08/2011 17:04 20/08/2011 17:04
Joined: Dec 2005 Posts: 5,405 Castle Combe Flea Forum is my life
Flea Forum is my life Joined: Dec 2005 Posts: 5,405 Castle Combe	Yes it will need the map tweaking if the downpipe is changed, but I would add that it certainly doesn't require it. As it stands, it is setup perfectly so while there may be further gains to be had, Roger may feel it is plenty quick enough once he has driven it! In terms of flow, the 20vt head is remarkably good despite the small valve size, and will achieve 500bhp with no work at all. However, exhaust size is more significant in general, so for maximum performance you should always increase diameter appropriate to the demands of the engine.

Re: Finally Its Going to FC Performance ... [Re: ] #1251488 20/08/2011 17:48 20/08/2011 17:48
R rAzOr_20vt Unregistered
rAzOr_20vt Unregistered R	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+

Re: Finally Its Going to FC Performance ... [Re: Flea] #1251505 20/08/2011 18:56 20/08/2011 18:56
Joined: Dec 2005 Posts: 1,670 SW London Rudidudi My life on the forum
Rudidudi My life on the forum Joined: Dec 2005 Posts: 1,670 SW London	Originally Posted By: Flea 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.

Re: Finally Its Going to FC Performance ... [Re: ] #1251576 20/08/2011 22:05 20/08/2011 22:05
M Marco20valveT Unregistered
Marco20valveT Unregistered M	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!!

Re: Finally Its Going to FC Performance ... [Re: ] #1251638 21/08/2011 00:59 21/08/2011 00:59
Joined: Oct 2006 Posts: 1,829 kidderminster nick_d My life on the forum
nick_d My life on the forum Joined: Oct 2006 Posts: 1,829 kidderminster	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

Re: Finally Its Going to FC Performance ... [Re: ] #1251663 21/08/2011 08:30 21/08/2011 08:30
Joined: Dec 2005 Posts: 2,194 Göteborg, Sweden Freddan72 Competition Level
Freddan72 Competition Level Joined: Dec 2005 Posts: 2,194 Göteborg, Sweden	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. Coupé Fiat 20V Turbo Plus 1999, T19 Mitsubishi turbo https://youtu.be/O9qrLj3Ap00 Now FCP Stage3!

Re: Finally Its Going to FC Performance ... [Re: ] #1251817 21/08/2011 19:01 21/08/2011 19:01
Joined: Feb 2007 Posts: 3,486 London Tan technics I need some sleep
technics I need some sleep Joined: Feb 2007 Posts: 3,486 London Tan	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!

Re: Finally Its Going to FC Performance ... [Re: technics] #1252009 22/08/2011 00:27 22/08/2011 00:27
S sparkyman Unregistered
sparkyman Unregistered S	Nice one Roger By the way is your hair still pinkish in bits Young guys these days and their hair, you diva

Re: Finally Its Going to FC Performance ... [Re: nick_d] #1252067 22/08/2011 09:57 22/08/2011 09:57
Joined: Dec 2007 Posts: 2,252 Windsor/ Reading knight7660 Competition Level
knight7660 Competition Level Joined: Dec 2007 Posts: 2,252 Windsor/ Reading	luke had a 3" DP and 2.5" system mate Originally Posted By: nick_d 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

Re: Finally Its Going to FC Performance ... [Re: ] #1253516 25/08/2011 19:17 25/08/2011 19:17
G griffster Unregistered
griffster Unregistered G	whats the torque steer like when it transitions to full boost with throttle wide open?

Re: Finally Its Going to FC Performance ... [Re: ] #1253561 25/08/2011 21:47 25/08/2011 21:47
R rAzOr_20vt Unregistered
rAzOr_20vt Unregistered R	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

Re: Finally Its Going to FC Performance ... [Re: ] #1254367 28/08/2011 02:02 28/08/2011 02:02
Joined: Dec 2007 Posts: 2,252 Windsor/ Reading knight7660 Competition Level
knight7660 Competition Level Joined: Dec 2007 Posts: 2,252 Windsor/ Reading	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

Re: Finally Its Going to FC Performance ... [Re: ] #1254584 28/08/2011 20:35 28/08/2011 20:35
R rAzOr_20vt Unregistered
rAzOr_20vt Unregistered R	No mate i never saw the link, was no problem to make one up anyway :-)

Re: Finally Its Going to FC Performance ... [Re: ] #1255499 31/08/2011 16:32 31/08/2011 16:32
G griffster Unregistered
griffster Unregistered G	Originally Posted By: rAzOr_20vt 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?

Re: Finally Its Going to FC Performance ... [Re: ] #1255504 31/08/2011 16:38 31/08/2011 16:38
Joined: Dec 2005 Posts: 3,620 S Wales chrissy Tourque Italia member!
chrissy Tourque Italia member! Forum is my job Joined: Dec 2005 Posts: 3,620 S Wales	Originally Posted By: griffster Originally Posted By: rAzOr_20vt 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'!

Re: Finally Its Going to FC Performance ... [Re: ] #1255507 31/08/2011 16:43 31/08/2011 16:43
Joined: Dec 2007 Posts: 2,252 Windsor/ Reading knight7660 Competition Level
knight7660 Competition Level Joined: Dec 2007 Posts: 2,252 Windsor/ Reading	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 Originally Posted By: griffster Originally Posted By: rAzOr_20vt 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

Re: Finally Its Going to FC Performance ... [Re: ] #1255770 01/09/2011 10:23 01/09/2011 10:23
D DaveM Unregistered
DaveM Unregistered D	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.

Re: Finally Its Going to FC Performance ... [Re: ] #1255934 01/09/2011 17:27 01/09/2011 17:27
Joined: Aug 2007 Posts: 8,057 Southsea G Gunzi Club member 189, Former Club President
Gunzi Club member 189, Former Club President Je suis un Coupé G Joined: Aug 2007 Posts: 8,057 Southsea	As others have said it's all in the front suspension components. If they are worn you will get FAR worse torque steer. As I've said before mines had a full front suspension refresh and I get no torque steer. Granted I'm not running 350bhp. However I did get to drive OO7's car which is ~310bhp on a GT series turbo and going onto the motorway through 2nd and 3rd there was no torque steer on WOT. Maybe see if you can meet up with someone else with a high powered Coupe and ask for a passenger ride.

Re: Finally Its Going to FC Performance ... [Re: ] #1256164 02/09/2011 10:37 02/09/2011 10:37
Joined: Jan 2006 Posts: 3,034 Sweden Per I need some sleep
Per I need some sleep Joined: Jan 2006 Posts: 3,034 Sweden	I got rid of most torque steer with the lower brace. Re-Bangled

Re: Finally Its Going to FC Performance ... [Re: ] #1256543 03/09/2011 17:55 03/09/2011 17:55
G griffster Unregistered
griffster Unregistered G	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?

Re: Going to FC Performance ... Results.. 401bhp! [Re: ] #1256552 03/09/2011 18:59 03/09/2011 18:59
Joined: Aug 2007 Posts: 8,057 Southsea G Gunzi Club member 189, Former Club President
Gunzi Club member 189, Former Club President Je suis un Coupé G Joined: Aug 2007 Posts: 8,057 Southsea	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.

Re: Going to FC Performance ... Results.. 401bhp! [Re: ] #1256563 03/09/2011 19:23 03/09/2011 19:23
J jonnyk Unregistered
jonnyk Unregistered J	IMO it's all about the 60-100 figure anyways!

Re: Going to FC Performance ... Results.. 401bhp! [Re: ] #1256754 04/09/2011 12:55 04/09/2011 12:55
Joined: Feb 2006 Posts: 5,390 Essex Trappy Forum is my life
Trappy Forum is my life Joined: Feb 2006 Posts: 5,390 Essex	Originally Posted By: jonnyk 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...

Re: Going to FC Performance ... Results.. 401bhp! [Re: ] #1257689 06/09/2011 22:09 06/09/2011 22:09
G griffster Unregistered
griffster Unregistered G	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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