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Jan 14th, 2020
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Re: getting excited!
#138652
22/07/2006 22:56
22/07/2006 22:56
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Anonymous
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Anonymous
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C'mon Nigel whats the score? 
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Re: getting excited!
#138653
22/07/2006 23:12
22/07/2006 23:12
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Anonymous
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Anonymous
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Re: getting excited!
#138654
23/07/2006 00:40
23/07/2006 00:40
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Joined: Dec 2005
Posts: 17,367
Staffordshire
Nigel
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Staffordshire
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OK - just got home - well knackered Excuses first - the ambient temps were about 30 degrees, and most runs started with chargetemps of about 40 degrees, and ended up at about 50 degrees. Autumn will see better figures. The best run was 394bhp, but in the end, Paul backed off the fuelling and we settled at 389. He was absolutely certain that a cooler day would have easily seen 400. Chuffed 
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Re: getting excited!
#138655
23/07/2006 00:43
23/07/2006 00:43
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Anonymous
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Anonymous
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What boost did you run in the end Nigel?! BTW Great Result! 
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Re: getting excited!
#138656
23/07/2006 00:59
23/07/2006 00:59
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Anonymous
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Anonymous
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I told you, you'd easily see 380-390bhp Nigel, ,... well done  Joe ps Nigel, now all you need to do is get Graham to knock off 20% fuelling off the start-up and idle maps, and you'd be laughing ! 
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Re: getting excited!
#138657
23/07/2006 01:16
23/07/2006 01:16
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Anonymous
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Anonymous
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Excellent result there Nigel . TOTB next week should be fun ! Phil
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Re: getting excited!
#138658
23/07/2006 01:56
23/07/2006 01:56
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Anonymous
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Anonymous
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Amazing result! That means it's now probably a lot faster than your old 355! (well, at least in a straight line). Very impressive
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Re: getting excited!
#138660
23/07/2006 02:17
23/07/2006 02:17
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Anonymous
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Anonymous
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amazing! well done 400@1.5bar!Will conrods be up to the job? v.
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Re: getting excited!
#138661
23/07/2006 02:28
23/07/2006 02:28
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Anonymous
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Anonymous
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Quote:
I chickened out on the boost - the 394bhp was at "only" 1.5 bar
Whilst that is superb, don't even pretend you don't want to know what 1.8 bar would have pumped out
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Re: getting excited!
#138662
23/07/2006 02:37
23/07/2006 02:37
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Anonymous
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Anonymous
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Jeeeeez Nigel - that is very impressive!
I have got to see this in action - how about a mini-meet at my house sometime. Just pop in anytime!
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Re: getting excited!
#138664
23/07/2006 02:50
23/07/2006 02:50
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Joined: Dec 2005
Posts: 17,367
Staffordshire
Nigel
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Posts: 17,367
Staffordshire
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I seriously thought about goung to 1.7 bar, but the ambient temp was so high in the dyno room that we decided to play it safe.
Maybe later in the year I'll go back for some higher-boost mapping.
I used the 16vt injectors - still managed to max them out at 6,000rpm
Spoolup is actually a little worse than before the mapping - It doesn't come on REALLY strong until nearly 4,000 rpm, but its still pulling harder before then than it used to with my old turbo.
Think about it - at 1.35 bar on the GT28R, I used to get 305bhp. Now I can get 319bhp at just 1 bar.
The only thing I've noticed is that it takes a couple of seconds on the starter motor to catch, whereas before, it would start within half a second or so. I can live with it, but its unexpected - it ticks over fine though, so there's no real problem.
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Re: getting excited!
#138665
23/07/2006 03:10
23/07/2006 03:10
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Anonymous
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Anonymous
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So you've lost like 1000rpm + on spoolup..... Well done on the result tho. MEGA FIGURES!!!
How does it feel when the boost kicks in? is it brutal?
Ross
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Re: getting excited!
#138666
23/07/2006 03:47
23/07/2006 03:47
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Joined: Dec 2005
Posts: 17,367
Staffordshire
Nigel
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Posts: 17,367
Staffordshire
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It doesn't feel like I've lost anything on spoolup - here's why: GT28R used to give 1 bar by 3,000rpm and 1.35 bar by about 3,500. At this point, my power would have been say 250bhp Now, my GT2871R gives about 0.7 bar by 3,000 rpm, which probably still gives me 250bhp. However, the torque is higher, so it actually feels faster. Yes, the point at which the turbo can give full boost is probably now around the 3,500 - 3,700 mark, depending on gain settings. I've yet to work out what it's going to do on the road, as the rollers really don't put as much load on, so spoolup will often be a little later. As I mentioned a couple of days ago, under the right conditions, I can see 1 bar at 3,000 on the road. However, the way the car behaves after 4,000 is just insane. Its not peaky - it doesn't come in with a big kick - its just a constant surge. You know how a decent Coupe pulls at say 5,000 rpm in 3rd? Mine now pulls like that from 4,000 all the way to the rev limiter in 3rd 4th and 5th It honestly feels like the rate of acceleration is constant. Quite, quite mad, but very entertaining and totally addictive. I really can't wait until TOTB to see how it does - I think there may be problems with traction though 
![[Linked Image]](https://i.imgur.com/19K9lau.jpg)
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Re: getting excited!
#138667
23/07/2006 04:35
23/07/2006 04:35
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Anonymous
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Anonymous
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Fcukin excellent mate, I'm well chuffed for you. How much torque you pumping out? P.S. Please don't let anything break before TOTB
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Re: getting excited!
#138668
23/07/2006 04:42
23/07/2006 04:42
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Anonymous
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Anonymous
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Nigel that is truly amazing results.  I knew we'd be looking at a high figure, but in that temps and "only" 1.5 bar I didn't think you'd be just shy of 400bhp. Cracking stuff.
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Re: getting excited!
#138669
23/07/2006 05:03
23/07/2006 05:03
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Anonymous
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Anonymous
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Quote:
It doesn't feel like I've lost anything on spoolup - here's why:
GT28R used to give 1 bar by 3,000rpm and 1.35 bar by about 3,500. At this point, my power would have been say 250bhp
Now, my GT2871R gives about 0.7 bar by 3,000 rpm, which probably still gives me 250bhp. However, the torque is higher, so it actually feels faster.
Yes, the point at which the turbo can give full boost is probably now around the 3,500 - 3,700 mark, depending on gain settings.
I've yet to work out what it's going to do on the road, as the rollers really don't put as much load on, so spoolup will often be a little later. As I mentioned a couple of days ago, under the right conditions, I can see 1 bar at 3,000 on the road.
However, the way the car behaves after 4,000 is just insane. Its not peaky - it doesn't come in with a big kick - its just a constant surge.
You know how a decent Coupe pulls at say 5,000 rpm in 3rd? Mine now pulls like that from 4,000 all the way to the rev limiter in 3rd 4th and 5th It honestly feels like the rate of acceleration is constant.
Quite, quite mad, but very entertaining and totally addictive.
I really can't wait until TOTB to see how it does - I think there may be problems with traction though
Yeah suppose your right. Although, thats not just due to your turbo tho..... its the headwork u have done. Imagine if u didnt have it done.
Ross
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Re: getting excited!
#138670
23/07/2006 08:22
23/07/2006 08:22
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Joined: Dec 2005
Posts: 548
Oxford
Sean_C
Enjoying the ride
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Enjoying the ride
Joined: Dec 2005
Posts: 548
Oxford
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CONGRATULATIONS Nigel !!!
Truly impressive results.
Enjoying Coop ownership, second time round . Also enjoying RWD action in a thundering V8 E90 M3.
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Re: getting excited!
#138671
23/07/2006 16:20
23/07/2006 16:20
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Anonymous
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Anonymous
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When you get the boost doesn't equate to when the car 'gets going' though. This point is later with the gr28rs etc turbos. joe Want to see the dyno plots Want to see the dyno plots Want to see the dyno plots
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Re: getting excited!
#138672
23/07/2006 16:23
23/07/2006 16:23
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Joined: Dec 2005
Posts: 17,367
Staffordshire
Nigel
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Posts: 17,367
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Quote:
Want to see the dyno plots
Ah!
in my enthusiasm to leave PTS (I left at 4:15, to get to a family BBQ 120 miles away that started at 4pm - oops!) I didn't pick up my printouts.
Can you get the plots from Paul or Tony?
I'm perfectly happy for you to use them.
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Re: getting excited!
#138673
23/07/2006 17:00
23/07/2006 17:00
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Anonymous
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Anonymous
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Quote:
When you get the boost doesn't equate to when the car 'gets going' though.
Why is this Joe ? That's exactly what I find with my 28R - 1.2 bar by, say 3100 rpm, but its only from 3500 rpm onwards that it seems to do anything with it 
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Re: getting excited!
#138674
23/07/2006 17:32
23/07/2006 17:32
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Anonymous
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Anonymous
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Nice one Nigel! I really wish I could justify doing this to my car!
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Re: getting excited!
#138675
23/07/2006 19:03
23/07/2006 19:03
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Anonymous
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Anonymous
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No probs Nigel, will pop down tomorrow morning  @ Jajell, I'm not sure why tbh, I think it is a function of the turbo though. My car runs 1 bar at 3000rpm but she also doesnt hit the torque curve till 3500 rpm. I do think weather plays a part with the air less dense when its hotter, I can even see this on dyno plots between hot and cold days. I can imagine that the wastegate is closed more with the gt28 etc turbos, and although you've got good boost, exhaust is being diverted via the turbo, so the engine is being 'restricted', not until 3500rpm+ does the wastegate open and aloow the car to breathe. A very well known high spec 20vt with head work also suffered from this ,great low down boost, but the car still didnt get going till 4000rpm despite what the boost needle was doing! Joe
Last edited by Doctorfrag; 23/07/2006 19:14.
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Re: getting excited!
#138678
23/07/2006 21:21
23/07/2006 21:21
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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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Quote:
Surprised no one has said "nigel is now the most powerful 2.0 20vt coupe on the forum, without nitrous and 2.4"
Great result though nigel
Well nobody said it when I was the most powerful 2.0 20vt coupe on the forum, without nitrous and 2.4 
Anyway, well done Nigel you have indeed which is what you set out to do
P.S. I've still got more torque at 334 lbs/ft and I got 322 bhp at 1 bar
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Re: getting excited!
#138679
23/07/2006 21:37
23/07/2006 21:37
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Anonymous
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Anonymous
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good work there Nigel, am inpressed. I had also considered the same route as you ( albeit with a different turbo combo & tricks ) but since my bottom end is fubar, you only live once rip up the strip mate
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Re: getting excited!
#138681
24/07/2006 01:52
24/07/2006 01:52
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Anonymous
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Anonymous
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good work nigel good to see it done 394bhp i bet its mental now , out of interest nigel whats the boost response like? just wondering how the car drives on part throttle are you you able to feed power in slowly or is it on off.
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![[Linked Image]](http://www.fcperformance.co.uk/fcp-fb.jpg)
