Racing an RX

Started by TonyC, October 16, 2006, 09:15:18 PM

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Adriansturgess

There is an argument  which says a big power single is the best setup for the quarter mile but a well set up sequential is best for track work.
FD or not FD? that is the question.

nikp

Quote from: TonyCAny pictures to scare me!?

Here\'s a link to a site going through the replacement process: http://rx7.voodoobox.net/howto/vachose/vacpics/indexjs.html

TonyC

Blimey, looks like Medusa. I suppose as long as you have a map it should be straightforward - just fiddly and time consuming.

Preston is close, 30 minnutes or so.
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Rixio

Quote from: grinderjust out of interest - did you find anyone local so that you could have a nosey round their car ??

there is a monthly meet at warrington - could be too far away from you

might mate has an FD in preston - thats pretty close to you

Stu

Preston is nowhere near Skipton LOL...

Like i said by all means you can come round and have a gander at mine + its partly in bits so you can see alot of the plumbing etc :)

TonyC

Will give you a buzz later on - at work, not working (!) at the mo.
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TonyC

Another question on power: as it\'ll never go near a road or MOT station I\'ll be able to dump any acts - what effect does this have on the potential power on the standard turbos? IE: if this is done even in standard spec does it release another 10? 20? 5? none?
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ScuttleRX

not sure exact bhp as I havent been on dynos much to compare, but on 1/4 mile my best terminals were about 108-109mph before straight thru de-cat, and I got up to 114mph after with a few 11x\'s. Thats on standard tubs and lump.

So definately a fair bit of umph released

Red and Single

Best mods for a standard car have gotta be ...

Apexi PFC ECU
Cold air Intake
Decat
Exhaust
SMIC

That should see you well into 300\'s at the wheels on a good engine.
Dave Hughes
13.352 @ 109.03mph (running 0.75 bar  :rollin )
Red \'95 Type R T04S & Bare Arsed  :chat

ScuttleRX

Possibly moderate fuel upgrade too, im at 0.9bar with them mods minus the SMIC im hitting over 90% injector duty at times. Depends how much you want to up boost by.

Rixio

Quote from: Red and SingleBest mods for a standard car have gotta be ...

Apexi PFC ECU
Cold air Intake
Decat
Exhaust
SMIC

That should see you well into 300\'s at the wheels on a good engine.

Im 300+ atw with those mods but a FMIC & ported engine my injector cycle is maxd @ 100% in 1st, 2nd and 3rd gear after 6k rpm:eek:

banned advertiser

Hi Tony
Nice to see RX7 being taken as a serious track car.
Have a couple that may interest you and at good prices.
http://www.rotaryart.uk.com/acatalog/Black_RX7_shell.html
http://www.rotaryart.uk.com/acatalog/Rd_legal_Track_car.html
Bell me anythime 07973 111333 Gary

dandan

There is no reason why the twins would not supply enough power for what you need, even if they do prove to be well set up but slightly underpowered you could use late-spec model turbos which can handle slightly more power. Ross from dragon has late spec twins pushing out 400hp (not sure about fly or rear wheel hp) so it\'s definately attainable.
The only thing that would worry me from a racing point of view is the tiny waver in power and torque at the changeover (around 4500rpm) as i\'m pretty sure this little spurt is what put out the back end of my first car and put it in a wall. I wouldn\'t want that to catch me unawares halfway through a commited maneuver!
Make sure you keep us posted on this project though, it sounds very interesting :)

Wav

Hey Tony,

I\'ve built a car that still uses the stock twin turbos, all be it in non-sequential mode, it makes an easy 325atw\'s at 1bar of boost and can get on any circuit in the uk no problems. This year it was entered in the time attack series, and has done more than 8 track days and 1 trip to the ring with only oil, filter and spark plug changes required. We run the car on any old super petrol and with someone decent behind the wheel it would be very quick indeed round a circuit. And I think in total the car stands us at 8k and that includes all the running costs (excluding petrol, insurance and tax) for 1 1/2 years.

So yes, it is very possible to build a car of the type you\'re after within a reasonable budget.

Hope that helps,

Paul

P.S. I\'m originally from Bingley and my family now lives in Steeton. I intednd on coming back for a weekend within the next few weeks... so yeah I can happily show you the car then. Just let me know.

dwarfslapper

Quote from: TonyCAny pictures to scare me!?
.....................
Paul
For sale:Thumbsup! http://www.mazdarotaryclub.com/forums/showthread.php?t=34314
High maintenance,but aren\'t all beautiful girls:InLove

TonyC

Quote from: rotaryart.uk.comHi Tony
Nice to see RX7 being taken as a serious track car.
Have a couple that may interest you and at good prices.
http://www.rotaryart.uk.com/acatalog/Black_RX7_shell.html
http://www.rotaryart.uk.com/acatalog/Rd_legal_Track_car.html
Bell me anythime 07973 111333 Gary

Gary, the green car is interesting - does it still have the dent?
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Original build hours:364. Prep for Season 2: 39 hours. Follow the build: Here
Next race: TBC Contact me on Mazda 13B Racing
Follow me for \'as it happens\' updates at //www.twitter.com/MazdaGT500