General > Shows, Events and Meets
JKM Dyno-Day - Saturday 27th October....
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A beast of a car. It must be an animal to drive, and the sound was wonderfull!!
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Statller-Stevo:
--- Quote from: OVERTFSI on October 29, 2012, 06:38:15 pm ---
--- Quote from: richwig83 on October 29, 2012, 06:18:54 pm ---Surely wheels spin would result in a flat spot on the graph?
--- End quote ---
You would see wheel spin on a graph depending where its loosing traction running light of the rear idel roller or spinning on the front brake roller. Its just the diffrence from a generic map and a full custom map from scratch with over 100hours R&D and a passion and drive for power not profit / sales.
The car makes 450lbft on my dyno aswell, and the graph is following the boost curve I mapped in 2 weeks proir, fast spooling but held back to 4000rpm to keep the turbine speeds lower so the turbo pumps air not chops it. On my dyno when the LPFP is above 4.1bar and the constant fuel trims are below +10% the car will make 401-404bhp, but as soon as the LPFP is playing catch up and trims exceed +10% the ecu is set to pull out around 20bhp. We spent 7 hours trying to work around this to realise a 6bar pump is needed anfter fitting a brand new LPFP. But still with the stock LPFP it can fuel fine to 12.4:1 at 130bar with 0CF across the whole rpm range.
And to show my dyno is on par with the JKM runs, this is what we finished testing the car at the before the JKM RR day. And no wheel spin as my dyno has a fancy system to detect wheel spin and slip.
--- End quote ---
Awesome results there for you R-tech chaps really, you are doing a fine job I'm so glad you had success and opened a few eyes on JKM's 'heartbreaker rollers' ! :happy2: we've had quite a few cars in with your tunes on board and must say I'm very impressed so far keep the excellent work up guys :congrats:
Janner_Sy:
--- Quote from: Janner_Sy on October 29, 2012, 05:57:58 pm ---
--- Quote from: GrayMK5GTI on October 28, 2012, 07:44:48 pm ---
http://www.mk5golfgti.co.uk/forum/index.php/topic,46771.msg628009.html#msg628009
--- End quote ---
Its impressive, no doubting that, BUT surely WHEELSPIN!!!!!!!!!!!
--- End quote ---
--- Quote from: richwig83 on October 29, 2012, 06:18:54 pm ---Surely wheels spin would result in a flat spot on the graph?
--- End quote ---
You misunderstood me. I wasnt insinuating that the figures are due to wheel spin.
I was thinking along the lines of over 450 Lbft and only 2wd as a road car....WHEELSPIN!!!!!!!!!!!
great figures or not, I cant see that being as drivable as some of the others. As impressive as the figures are, i think id want less aggressive midrange
h4rdy:
--- Quote from: Janner_Sy on October 30, 2012, 09:37:02 am ---
--- Quote from: Janner_Sy on October 29, 2012, 05:57:58 pm ---
--- Quote from: GrayMK5GTI on October 28, 2012, 07:44:48 pm ---
http://www.mk5golfgti.co.uk/forum/index.php/topic,46771.msg628009.html#msg628009
--- End quote ---
Its impressive, no doubting that, BUT surely WHEELSPIN!!!!!!!!!!!
--- End quote ---
--- Quote from: richwig83 on October 29, 2012, 06:18:54 pm ---Surely wheels spin would result in a flat spot on the graph?
--- End quote ---
You misunderstood me. I wasnt insinuating that the figures are due to wheel spin.
I was thinking along the lines of over 450 Lbft and only 2wd as a road car....WHEELSPIN!!!!!!!!!!!
great figures or not, I cant see that being as drivable as some of the others. As impressive as the figures are, i think id want less aggressive midrange
--- End quote ---
I am pretty sure I am happy with mine, I think it would be tooooo much for me!
One for the younger generation methinks.
RedRobin:
^^^^
Having driven yours, h4rdy, I agree - Your Stage 2+ Ed30 has plenty of driveable power and doesn't need any more. It's possible to smoothly get into licence-losing territory without realising anyway! Ping! :laugh:
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