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Author results of todays mapping session
Dave A
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Registered: 10th Dec 03
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5th Sep 07 at 15:57   View User's Profile U2U Member Reply With Quote



and thats about it. Dont think I will find anymore power from these cams, power drops off at 8000 rpm. Engine is built to take 9k easily so some bigger cams are already on their way
Nath
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Registered: 3rd Apr 02
Location: MK
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5th Sep 07 at 15:58   View User's Profile U2U Member Reply With Quote
Bet thats fun to drive
willay
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Registered: 10th Nov 02
Location: Roydon, Essex
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5th Sep 07 at 15:58   View Garage View User's Profile U2U Member Reply With Quote
good result dave
Dave A
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5th Sep 07 at 16:00   View User's Profile U2U Member Reply With Quote
its fun to drive, lots of fun

its suprisingly well behaved round town and in traffic as well as long as you can put up with the noise of the tb's.
willay
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5th Sep 07 at 16:01   View Garage View User's Profile U2U Member Reply With Quote
going to take it on some track days?
Simon_16v
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Registered: 14th Aug 06
Location: Yorkshire
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5th Sep 07 at 16:04   View User's Profile U2U Member Reply With Quote
Im not really understanding of rr graphs. But do you not feel the torque sort of dissapear slightly when driving hard as theres not much of an increase from 3k to 6k.

As i sad i dont know much about this sorta thing so go easy lol
Dave A
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5th Sep 07 at 16:04   View User's Profile U2U Member Reply With Quote
yes indeed.

I also went against the rulebook today and raised my suspension all round by 20mm and fitted softer coilsprings. it handles so much better on the road now. soft and high, its the modifying future I tell thee.
Dave A
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5th Sep 07 at 16:07   View User's Profile U2U Member Reply With Quote
a nice flat torque curve is what you want. these engines rarely make more than this one has made, the ai is when mapping is to get it to increase smoothly and if it stops increasing, get it to stay flat. as long as the BHP is rising steadily then it will accelerate well.
Simon_16v
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Registered: 14th Aug 06
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5th Sep 07 at 16:11   View User's Profile U2U Member Reply With Quote
Ahhh. That sort of solves the puzzle in my mind. As you need torque to pull through the gears but you need bhp to sort ofmake the car usable.

Is that right?
Nick-S
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Registered: 3rd Mar 04
Location: Leigh. Drives: RS Megane 230 F1 Team R26
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5th Sep 07 at 16:44   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Dave A
yes indeed.

I also went against the rulebook today and raised my suspension all round by 20mm and fitted softer coilsprings. it handles so much better on the road now. soft and high, its the modifying future I tell thee.
surly thats only gud on the most unevan and rutted roads?
Nic Barnes
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Registered: 5th Apr 04
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5th Sep 07 at 16:51   View User's Profile U2U Member Reply With Quote
lovely indeed
Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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5th Sep 07 at 17:16   View User's Profile U2U Member Reply With Quote
Nice one, what cams is that with?

[Edited on 05-09-2007 by Vaux Lad]
JonnyJ
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Registered: 23rd Sep 05
Location: Scotchland
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5th Sep 07 at 17:18   View User's Profile U2U Member Reply With Quote
Not as good as my graph

Nice one David
deano87
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Registered: 21st Oct 06
Location: Bedfordshire Drives: Ford Fiesta
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5th Sep 07 at 17:19   View User's Profile U2U Member Reply With Quote
Cool - if I built a fast Corsa, it'd definitely be a 1.6 tuned and not a 2.0 etc
Dave A
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5th Sep 07 at 17:24   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Vaux Lad
Nice one, what cams is that with?

[Edited on 05-09-2007 by Vaux Lad]



a special version of the Newman 288's
Dave A
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5th Sep 07 at 17:25   View User's Profile U2U Member Reply With Quote
still a bit annoyed that I didnt beat Brosters 191 bhp
Matt L
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5th Sep 07 at 17:27   View User's Profile U2U Member Reply With Quote
close to it though.

i swear i read in a magazine somewhere that they rolling roaded a car with the fans on different settings and it actually made a difference to the bhp. cant remember what mag though now.
SportBoy
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5th Sep 07 at 17:29   View User's Profile U2U Member Reply With Quote
get a leaf blower on it
Dave A
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5th Sep 07 at 17:30   View User's Profile U2U Member Reply With Quote
yes matt, the more voltage drain on the cars electrical system the lower the BHP output.

If I had switched my fuel pump off i may have gained the 0.8 bhp I needed, no wait... that wouldnt have worked.
Paul_J
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Registered: 6th Jun 02
Location: London
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5th Sep 07 at 17:31   View User's Profile U2U Member Reply With Quote
Nice graph...

The torque stays constant from about 2500 rpm ... all the way to max power, which is really nice. As it means you've got the fantastic mid range to accelerate from out of the bends.

I'm jealous I don't have that engine in my car. Now just make sure you use the car for what it was built for! track days etc!
Nic Barnes
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Registered: 5th Apr 04
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5th Sep 07 at 17:31   View User's Profile U2U Member Reply With Quote
do you want an extra free 1bhp dave? i can tell you how
Dave A
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5th Sep 07 at 17:32   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by SportyBoy
get a leaf blower on it


nah, forced induction is for boys with small willys

plus I would need 4 leaf blowers with 40mm outlets. hmm.........
Vaux Lad
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Registered: 15th Dec 04
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5th Sep 07 at 17:32   View User's Profile U2U Member Reply With Quote
Pah, run it with no alternator connected, that should add a few bhp
Nic Barnes
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5th Sep 07 at 17:38   View User's Profile U2U Member Reply With Quote
dont even have to do that, can probably get 1bhp another way easier
Dave A
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5th Sep 07 at 17:40   View User's Profile U2U Member Reply With Quote
tried the alternator method already, well the engine does it automatically. the alternator belt flies off at 8000 rpm sometimes, doesnt add bhp though.

I could probably get a few more bhp from some cam timing tweeks and more mapping but im getting bigger cams anyway so its a bit of a waste of time.

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