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Project UNDERDOG St170 Track Car

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Old 28-03-2017, 08:58 AM
  #1081  
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Originally Posted by jonfoc
Complete bollocks!!
hahahaha ^^^^^ +1
Old 28-03-2017, 09:45 AM
  #1082  
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Do you have any more info on the ECU you've used on it? I just did a bit of searching and they appear to do some Ford bits, looks interesting. What did you have to do to get it to run with the bike bodies?
Old 28-03-2017, 07:01 PM
  #1083  
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Turbo.........
Old 01-04-2017, 08:09 PM
  #1084  
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Originally Posted by massivewangers
Do you have any more info on the ECU you've used on it? I just did a bit of searching and they appear to do some Ford bits, looks interesting. What did you have to do to get it to run with the bike bodies?
hi. its a me221 from motorsport electronics. any more questions let me know
Old 04-04-2017, 03:39 PM
  #1085  
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Originally Posted by jonfoc
Complete bollocks!!
This isn't the place to argue, find a nicely tuned Integra or Civic with a K-swap and race em.
Old 04-04-2017, 05:48 PM
  #1086  
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Maybe I will get a chance to have ago in the Megane 225 now the focus is dead.
Old 04-04-2017, 07:16 PM
  #1087  
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Originally Posted by big_wasa
Maybe I will get a chance to have ago in the Megane 225 now the focus is dead.
What happened ?
Old 06-04-2017, 06:05 AM
  #1088  
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Originally Posted by pyle
This isn't the place to argue, find a nicely tuned Integra or Civic with a K-swap and race em.
Ooh ooh more complete bollocks!
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Old 10-04-2017, 08:43 PM
  #1089  
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Old 10-04-2017, 09:48 PM
  #1090  
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A good video and impressive numbers.
Old 11-04-2017, 08:19 PM
  #1091  
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Well done mate, matts a good old stick, and his rollers are pretty bang on so at least your not having the wool pulled. Would of liked to see your dyno sheet from the other place. Did you sort your misfire?
Old 11-04-2017, 10:36 PM
  #1092  
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Originally Posted by PaulinhoT
A good video and impressive numbers.
thanks paul.


Originally Posted by nevsrevs
Well done mate, matts a good old stick, and his rollers are pretty bang on so at least your not having the wool pulled. Would of liked to see your dyno sheet from the other place. Did you sort your misfire?
theres a big mystery surrounding my first mapping session. it made 189bhp but didnt feel that fast. it turned out the vvt wasnt mapped properly so thats why i ended up going to matt. so the previous 189 made 153 at matts dyno. there seemed to be a big problem on first dyno with the difference from the wheels to flywheel figure. almost 50bhp which is not normal for a fwd. so anyway that saga is behind me now. i spent a fair bit on first mapping session and it was a waste. luckily matt stepped up and helped me out and mapped it for almost free. basically the price of a power run.

the misfire is fixed but it wasnt any of my sensors. turned out to be noise interference on the crank wires of the loom and was cutting out the sync to the ecu. motorsport electronics wrote me a new ecu firmware with a noise filter built in and cured it.

next on my agenda is building a new exhaust as im pretty sure the 2 inch i have now is strangling some ponies. i need to go up to 2.5 inch i think.
Old 12-04-2017, 05:47 AM
  #1093  
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2.5 is defo the way to go for sure if not a tad bigger, but your car is head and shoulders above most in terms of quality
Old 12-04-2017, 08:37 AM
  #1094  
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Happy days, I bet it's nice now. When you planning on getting on track?
Old 12-04-2017, 07:44 PM
  #1095  
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Originally Posted by 1-PD
2.5 is defo the way to go for sure if not a tad bigger, but your car is head and shoulders above most in terms of quality
Thank you for saying that. cheers.

Originally Posted by nevsrevs
Happy days, I bet it's nice now. When you planning on getting on track?
Its going well now. not big numbers on dyno but on the road it feels so much better and very loud.
im hoping to do RS combe but looking for something to do before then but cant come to a decision yet. whats your plans this yr rog?
Old 13-04-2017, 11:55 AM
  #1096  
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Cadwell next Wednesday Steve
Old 13-04-2017, 09:50 PM
  #1097  
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Originally Posted by Rowe
Cadwell next Wednesday Steve
its a fair trek from me that.
Old 13-04-2017, 09:51 PM
  #1098  
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Old 13-04-2017, 10:02 PM
  #1099  
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Originally Posted by The Underdog
its a fair trek from me that.
Youll have think of a better excuse than that haha! All my georide friends are making the trip down.
Its definitely a track you should do!!! It's so technical
Old 15-04-2017, 09:47 PM
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Old 04-05-2017, 10:26 PM
  #1101  
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brands hatch indy evening session booked for 31st may. first time going there and first time on itbs. cant wait.
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Old 06-05-2017, 08:59 AM
  #1102  
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I look forward to the video Steve give it hell
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Old 07-05-2017, 08:32 AM
  #1103  
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Hi Mate, this has been a good read. Excellent work you've been doing! You really have shown the rest of us the way!

Couple of questions,

I have probably missed the answer some wher ein your thread, but what made you switch from 17" wheels down to 16" ? Did you do some comparison calculations on wheel dia/rolling radius/mph per 1000 revs/tyre size/etc and come up with 16" as the best way forward?

Also, I see why you have the hole in the floor for access to the fuel tank/pump etc., but have you fitted a cover plate to it, just in case of (perish the thought)a roll over/damage ?

Cracking looking motor, absolutely love it And really helpful tips in here even for us real amateurs
Old 07-05-2017, 09:41 PM
  #1104  
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Originally Posted by Mashurst
Hi Mate, this has been a good read. Excellent work you've been doing! You really have shown the rest of us the way!

Couple of questions,

I have probably missed the answer some wher ein your thread, but what made you switch from 17" wheels down to 16" ? Did you do some comparison calculations on wheel dia/rolling radius/mph per 1000 revs/tyre size/etc and come up with 16" as the best way forward?

Also, I see why you have the hole in the floor for access to the fuel tank/pump etc., but have you fitted a cover plate to it, just in case of (perish the thought)a roll over/damage ?

Cracking looking motor, absolutely love it And really helpful tips in here even for us real amateurs

Thank you. 16s came about by chance. i actually wanted 15s just for the theory of smaller rolling radius on the wheel is similar effect to changing the final drive on gearbox. plus cheaper track tyres but a mate was selling the 16s so bought them without to much thought. yes i did have a cover over it but its been removed for about the last yr or so. it was a crappy one and i need to make something tidy. to be honest your spot on and it constantly comes into my mind about rolling and blowing the lid off the tank. its on my to do list and your comments have moved it higher up the priority list. il get it done before next track day. cheers.
Old 07-05-2017, 09:43 PM
  #1105  
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Originally Posted by PaulinhoT
I look forward to the video Steve give it hell
paddock hill bend scares me lol
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Old 17-05-2017, 12:05 PM
  #1106  
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Getting withdrawal symptoms Steve, what ya been up to with the car Mate ?
Old 19-05-2017, 10:14 PM
  #1107  
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Originally Posted by Mashurst
Getting withdrawal symptoms Steve, what ya been up to with the car Mate ?

nothing major really. mot. front wings iv put back to standard so dont have the bulge no more. few map tweaks to idle so just small jobs. i found i had very inconsistent brake feel due to the servo vacuum pipes being too small so im waiting on some parts to make the hoses bigger and hopefully get some better pedal.
Old 20-05-2017, 09:41 AM
  #1108  
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Did I miss something Steve, what had you done to your wings ?
Old 20-05-2017, 08:58 PM
  #1109  
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Originally Posted by PaulinhoT
Did I miss something Steve, what had you done to your wings ?
na not much. i cut and bulged the back edge of wing where they meet the door to release air pressure in the wings but decided i dont like it. all the aero is gone. il have to get some pics sorted.
Old 21-05-2017, 08:57 PM
  #1110  
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Oh that's interesting, and I look forward to some new photos
Old 25-05-2017, 03:43 PM
  #1111  
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Going to pembrey on the 17th of June if your
about bud
Old 26-05-2017, 11:01 PM
  #1112  
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Originally Posted by nevsrevs
Going to pembrey on the 17th of June if your
about bud
i have been thinking of it rog. new layout too.
Old 26-05-2017, 11:04 PM
  #1113  
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Yea looks good
Get it booked bud
Old 27-05-2017, 08:25 PM
  #1114  
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Originally Posted by nevsrevs
Yea looks good
Get it booked bud
I want to but I'm also interested in Caldwell parc and my mate really wants to go there so getting pulled in all directions. Need to decide what I'm going to do soon. Can't wait for brands on wednesday.
Old 27-05-2017, 08:40 PM
  #1115  
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You know what the answer is mate ..... do bith
Old 27-05-2017, 08:50 PM
  #1116  
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made some changes since last pictures. all the aero is gone and front bumper is back as standard and rear but not has a full half cut. rear tail section of exhaust was chopped up when fitting the diffuser so now it has a temporary tail section. also had a buffing session of my nephew.



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Old 27-05-2017, 08:51 PM
  #1117  
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Originally Posted by nevsrevs
You know what the answer is mate ..... do bith
i so want to but want to do rs combe too so money might not stretch to them all
Old 27-05-2017, 08:53 PM
  #1118  
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Rocker cover got some paint and a general bay clean up

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Old 27-05-2017, 09:00 PM
  #1119  
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made a cover for fuel pump opening

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Having no idle control valve for cold starts means iv gone old school and fitted a choke pull.

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picked up a nearly new set of yokohama a048 but have to burn off a set of federals befroe they get used

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left of this pic is how i had brake vacuum set up but pipes were to small and brake feel was very inconsistent. sometimes pedal was firmer than others depending on how much vaccuum. and forget 2 quick stops in a row as second push was solid. so right hand side is new set up gradually increasing pipe size from the 4mm of the bodies up to 12mm of the standard ford pipe. also fitted one way vales for each bank of 2 so if a pipe on one side was to come loose or split then i would still retain vacuum.


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so thats all until after brands hatch on wednesday. thanks for looking
Old 27-05-2017, 09:05 PM
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Be interesting to see if it goes better without the diffuser Mate, I was thinking of getting one built myself to get rid of the parachute effect.

Looking good though, and nice job on the pump cover too
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