Well time to start again i think(track car)

[TRIND-FD]

Good choice of downpipe for twins, mazdaspeed done one the same.
Bloody lovely.

[Grant Monkhouse]

Never seen one of those before, looks good! are you going to run a full system to the rear then too? and are you going to run the 2 pipes into one big one?

[Grant Monkhouse]

im running an ETB digidash2 that comes with a fuel level sensor so ill stick that in the tank.
 
since the tank is rectangular it will be pretty easy to give an accurate reading of the whats in the tank
 
 
 
dont think ill be running that low that it wont start......can you imagine going racing and running out of fuel, how embarrasing would that be, especially if you only had to cover quarter of a mile, hey blitz;)
 
You would log injector duty for one lap of where ever your racing, calculate used fuel, then times it by the amount of laps(add one extra for cooldown/warmup lap)
 
Will you need the data loggit software nd black box to do this?
 
Im not currently sure whats inside the tank, been trying to ring jon all day but sounds like hes busy moving shop so dont want to pester him to much

I recently watched a programme called "a chopper is born" and they showed how they set up the fuel tank and fuel gauge, basically they filled the tank to the top, the fuel needle went beyond full, so an adjuster screw is tweaked until the fuel needle was on the full mark, then for the empty mark they removed the sensor out of the tank until it was nearly out of the fuel and adjusted the screw so that it landed on the Empty mark, so im sure the digidash will have something along the same lines, and if you measure how much the tank has in it at the full mark you should roughly know how many miles you have left in the tank at any given point.
 
i will check on you tube to see if that particular episode is there, then you can see exactly what i mean.

[turbotoaster]

at the end if becomes a 3inch pipe to join up to my decat so no need to  change my exhaust, though at the moment with it being a ebay decat(no  silencer) and a trust exhaust its gonna be a bit noisy for track, will  need to have a think about it.

also these have arrived

dynatek ARC-2 CDI Ignition system, good enough to spark 1600cc of water per minute so good enough for me...its fit and forget



DigiDash2 Lite, show everything ill ever need, oil temp/oil pressure/coolant temp, ive never used anything like this so im looking forward to learning how to change gear at the right rpm as theres no rev counter



ill set up some initial things with jons datalogit, things like OMP flow rate, then when i get it home grant we will have to do a bit of mapping, be good for me to show you how simple it is

i know its a 60litre tank, but i dont know if that includes the 1litre of the sump, the sump wont be taken into the consideration for the fuel gauge anyway, ill know when i see 0% ill have 1ltr left.

id imagine when i go santa pod ill need 3ltrs of fuel to make a pass, the good thing is the sump is at the back of the tank so under acceleration the fuel is forced into the sump and under braking you dont need to worry so much about fuel flow.


the guy who did that show did quite a few series, my favorite was \'racing car is born\'

[marco]

that will work well if the tank has a uniform cross section, however if the tank is a more complicated shape then there isnt a linear relationship between fluid depth and volume of fluid. you would have to take a number of values and derive the relationship between the two. still not the end of the world, just one more thing to bare in mind.

[Grant Monkhouse]

at the end if becomes a 3inch pipe to join up to my decat so no need to  change my exhaust, though at the moment with it being a ebay decat(no  silencer) and a trust exhaust its gonna be a bit noisy for track, will  need to have a think about it.

also these have arrived

dynatek ARC-2 CDI Ignition system, good enough to spark 1600cc of water per minute so good enough for me...its fit and forget



DigiDash2 Lite, show everything ill ever need, oil temp/oil pressure/coolant temp, ive never used anything like this so im looking forward to learning how to change gear at the right rpm as theres no rev counter



ill set up some initial things with jons datalogit, things like OMP flow rate, then when i get it home grant we will have to do a bit of mapping, be good for me to show you how simple it is

i know its a 60litre tank, but i dont know if that includes the 1litre of the sump, the sump wont be taken into the consideration for the fuel gauge anyway, ill know when i see 0% ill have 1ltr left.

id imagine when i go santa pod ill need 3ltrs of fuel to make a pass, the good thing is the sump is at the back of the tank so under acceleration the fuel is forced into the sump and under braking you dont need to worry so much about fuel flow.


the guy who did that show did quite a few series, my favorite was \'racing car is born\'

Yes that\'s the show, strangely my favourite one is , a 4x4 is born, really good engineering, very simple but complex thing working together to do something beyond normal, the articulation in the suspension is Insane!!

[Grant Monkhouse]

I see you have gotten yourself the same ignition as Peter? Well done. Are you getting the coil on plugs too?

[turbotoaster]

that will work well if the tank has a uniform cross section, however if the tank is a more complicated shape then there isnt a linear relationship between fluid depth and volume of fluid. you would have to take a number of values and derive the relationship between the two. still not the end of the world, just one more thing to bare in mind.

the fuel tank has a uniform cross section, it also has a flat boot as we cut the floor out and fitted a single flat sheet to allow for big diffusers/silencers

Yes that\'s the show, strangely my favourite one is , a 4x4 is born, really good engineering, very simple but complex thing working together to do something beyond normal, the articulation in the suspension is Insane!!

yep, on the 4x4 when he zinc plated the entire chassis, first time id ever seen anything like it, i was very impressed.

I wonder if i can find the series on a torrent somewhere

I see you have gotten yourself the same ignition as Peter? Well done. Are you getting the coil on plugs too?

yep, though only really saw how powerful it was from \'raceonly\' in OZ, who is running even more power on pump fuel.

ill be putting my coils where the abs unit used to be, id prefer that so it makes it easier to change plugs.

spoke to jon today, my wiring loom is in progress at the moment and the cdi kit will be intergrated into that, running a custom loom should hopefully again add to the weight loss and my shell is off for paint next week for a couple of weeks so if i dont have anymore pics before then ill get a few when i go down there at the start of october.

got solid ali engine mounts now aswell and pipework on order so its coming along well

[Grant Monkhouse]

Have you seen peters latest update on the aquamist forum? Apparently he has made a "quantum leap" in power and he\'s going to be showing the results as soon as he has installed the new driveline as it producing so much power now!!

[Will66]

Please don\'t take this the wrong way but your doing some massive work to the car and its progressing really well but have you considered the squidgy bit in the drivers seat.

Is it worth getting more instructions for such a monster car out on track. The last thing I\'d want to see is you to bin the car down to lack of experience.

Shaun

Shaun makes a good point!  Tuning the loose nut holding the wheel probably has as much effect on lap times as the tuning.

[turbotoaster]

Have you seen peters latest update on the aquamist forum? Apparently he has made a "quantum leap" in power and he\'s going to be showing the results as soon as he has installed the new driveline as it producing so much power now!!

dont really go on the aquamist forum, but just had a look after what you said, its interesting that hes got himself up to the 2.1bar of boost on pump fuel now, id imagine hte torque it produces is pretty impressive.

The only way i can imagine he is making even more power now is a change of turbo as at 2.1bar he will be maxing the to4z out.

be good to see him stick a 75mm turbo on there and see how he fairs, he might beat raceonlys 703whp on pump fuel record

[MaLicE]

how much was the dynatec?

can you run it on stock coils?

[Grant Monkhouse]

dont really go on the aquamist forum, but just had a look after what you said, its interesting that hes got himself up to the 2.1bar of boost on pump fuel now, id imagine hte torque it produces is pretty impressive.

The only way i can imagine he is making even more power now is a change of turbo as at 2.1bar he will be maxing the to4z out.

be good to see him stick a 75mm turbo on there and see how he fairs, he might beat raceonlys 703whp on pump fuel record

Yes but don\'t forget he has done some custom work to his turbo that may allow him to achieve higher boost from it. I would imagine that he has done the kind of work too it that tractor pulled guys do to there turbos.

I may email him to see if I can get any more Info.

2.1 bar is mad, think he only allows that kind of boost in 4th gear though as it will destroy any of the other gears

[Morrmat]

Nice thread and good to meet you on Sunday - I hope the downpipe suits your needs!

One question - where did you get the digidash from as I\'m interested!!


Matt

[turbotoaster]

how much was the dynatec?

can you run it on stock coils?

the full kit with coils, adapter harness and leads is about £400.

its a cdi kit so you dont run stock coils on it, to be honest i wouldnt  want to even if it saved me the £100 as it would dramatically reduce the  effectiveness of it assuming it would work at all

Yes but don\'t forget he has done some custom work to his turbo that may  allow him to achieve higher boost from it. I would imagine that he has  done the kind of work too it that tractor pulled guys do to there  turbos.

I may email him to see if I can get any more Info.

2.1 bar is mad, think he only allows that kind of boost in 4th gear though as it will destroy any of the other gears

ah i havent read his thread properly, just briefly skimmed through it so ill have to have a read properly.

alot of the time peter is right but he doesnt come across very well in written word, always seems like hes talking down to you which effects what people think of him, if he chilled out a bit more alot of people would respect him more and listen.

Dont know if ill ever run 2bar of boost on pump fuel, i know ross@dragon can do it but hes been running massive boost on rotarys for years so has loads more experience.

Ive thought about a supra 6 speed box with a 4.7 rear diff, but ill have to see how much the vehicle weighs first as those boxes are quite heavy, even though a rotary will never break one

Nice thread and good to meet you on Sunday - I hope the downpipe suits your needs!

One question - where did you get the digidash from as I\'m interested!!


Matt

thanks very much for the downpipe, was nice to chat and talk all things rotary, sorry i made you travel that far, felt a bit bad for the distance.

the dash is from ETB

http://www.etbinstruments.com/DD2_Range_Overview.htm

its £350 but comes with everything you could ever need, im looking forward to being able to monitor my engine temps/pressures accurately