Post #76
O really. Thanks I will do when I have some parts together. No point till then really________________________________________
white rallyecherry dead rallye
s16
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| Author | Subject: Mapping Throttle Bodies on Standard Management - Chip Wizards! |
 mr west
Senior User  Location: herts Registered: 13 Sep 2010 Posts: 742 Status: Offline |
cherry dead rallye s16 |
 Posted 5th Aug 2013 at 15:59
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russbez
Seasoned Pro  Location: Inverness-Shire Registered: 19 Dec 2005 Posts: 7,459 Status: Offline |
Post #77
took me a few days but that's me booked in with Mr Schofield for the end of the month  ________________________________________ TEAM HIGH BOOST SUPERCHARGED RALLYEMy Rallye project thread |
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Posted 5th Aug 2013 at 16:10
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jammapic
Senior User  Location: Manchester Registered: 11 Jun 2010 Posts: 778 Status: Offline |
Post #78
Cool.. What work? Just a tweak of the mapping on the supercharged motor?Drop me a message with when your going and I'll fly across to say hello! (he's not far from me!) JP ________________________________________ HDI Engine Tuning / Remapping Services - https://www.facebook.com/dervtech306 GTi-6 Track Car - 200+ hp all N/A! 306 DTurbo Track beasty - 209.9hp - RIP |
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Posted 5th Aug 2013 at 16:36
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russbez
Seasoned Pro Location: Inverness-Shire Registered: 19 Dec 2005 Posts: 7,459 Status: Offline |
Post #79
yes high boost custom mapi really wont be there very long mate, i am dropping the car off and then i am off pretty much straight away ill try and mind pm ________________________________________ TEAM HIGH BOOST SUPERCHARGED RALLYEMy Rallye project thread |
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Posted 5th Aug 2013 at 16:55
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #80
I'd be interested to see the result Russ. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone  |
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Posted 5th Aug 2013 at 19:05
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jammapic
Senior User Location: Manchester Registered: 11 Jun 2010 Posts: 778 Status: Offline |
Post #81
OK, so backtrack a tad...I talked about using staggered trumpets to move harmonics in the torque curve, and make for a smoother power band and more area under the curve. But, they say the proof of the pudding is in the eating, so here it is.  Here, you can see two dyno plots overlaid. The one which makes peak power at slightly higher RPM is with the shorter trumpets, and the one with power at lower RPM are the longer trumpets. You can see the shape of the curves are identical, but higher and lower RPM peak power. This is normal for longer and shorter trumpets. This is the key here. When we have two of the trumpets long, and two short, we effectly find a "middle ground" in the curves. This is helpful as we fill the troughs with power, but we do also lose our peaks - hence the peak power is marginally lower. What's important though, is area under the curve. Clearly, the more the better, and by filling the troughs we make the car smoother and more drivable. Below is the outcome of the staggered trumpets:  We actually did find a little more power with some more ignition advance and leaning the mixture out a touch, but the shape of the graph remained largely the same. ________________________________________ HDI Engine Tuning / Remapping Services - https://www.facebook.com/dervtech306 GTi-6 Track Car - 200+ hp all N/A! 306 DTurbo Track beasty - 209.9hp - RIP |
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Posted 21st May 2014 at 20:08
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Hawkesfire
Regular  Location: Stockton on tees Registered: 26 Mar 2013 Posts: 180 Status: Offline |
Post #82
Great guy really worth every hour of trying to track him down for an appointment and worth every pennie for the mapping as he got my SHB rallycross car flying with loads of power.Marty ________________________________________ 206 Rallycross GTI6 SC SHB 425 BHP clutch eater !!! |
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Posted 7th Jun 2014 at 18:20
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tom_g205
Junior User  Location: Saxmundham Registered: 17 Jun 2009 Posts: 82 Status: Offline |
Post #83
The staggered trumpets is an intresteting one. May I ask, how much are they staggered by and which ones as in 1 and 4 long 2 and 3 short?? And lengths?? Cheers Tom ________________________________________ 205 GTi-6 every day motor205 GTi-6 weekend/track car - project 230 N/A fingers crossed. |
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Posted 13th Jun 2014 at 13:44
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