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Old 06-19-2011, 03:31 AM   #1
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Default rs4 3evo set up...need help

Hi,
Need help for my 7yr old son car.
The car accelerate quite well from stop and go and it did shifted to 2nd gear... but on the long straight it just not going as fast as we expected..we currently on the T15 motor and stock pipe....any recommendation...thanks
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Old 06-19-2011, 09:17 AM   #2
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Originally Posted by mnr3.3 View Post
Hi,
Need help for my 7yr old son car.
The car accelerate quite well from stop and go and it did shifted to 2nd gear... but on the long straight it just not going as fast as we expected..we currently on the T15 motor and stock pipe....any recommendation...thanks


after you warm it up and do a straight line run, have you checked the temp of the motor?
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Old 06-19-2011, 10:20 PM   #3
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Default rs4 3evo set up...need help

Thanks buddy,

We do not have a temp gun yet...planning to get one..Can the temp gun help with the tuning.
I thought the smoke and the pinch test is good enough....
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Old 06-20-2011, 04:27 AM   #4
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Thanks buddy,

We do not have a temp gun yet...planning to get one..Can the temp gun help with the tuning.
I thought the smoke and the pinch test is good enough....


Knowing the temp can help with the tuning... there is a lot to it, but we can keep it simple. I was trying to figure out if the motor was in the 220 range....because if it is too rich, no top speed...


warm up the car really well...the motor has to be saturated with heat.( and you can tell that because the chassis will be hot) Run the car like you normally do, maybe a hign speed run or two, without killing it....put some spit on top of the motor, if is just sits there, the motor is too rich. If it sizzles right off, way to hot....if it just starts to bubble, and takes about 10 to 20 seconds to disappear, just right...



What fuel are you using?...btw, if you need help and can't get to the forums, my site is http://fastharry.com


Are you in Singapore?
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Old 06-20-2011, 10:33 AM   #5
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Default rs4 3evo set up...need help

Yes.....and Greetings from Singapore
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Old 06-21-2011, 06:52 AM   #6
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if you have some porting tools...the stock manifold restricts exhaust flow a decent bit and needs to be port matched. Switch the the 23T (red) 2nd gear pinion as this will help pickup a little more speed as well if you are still using the stock 22T (purple) pinion.


You can mod the T3.0 and get a good bit more rev's out of it...but the weak link is the rod and it cant handle the abuse of even more RPM very long. Below is my modded T3.0 crank, and the rod that let go after about 5 tanks.
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rs4 3evo set up...need help-0313011656a.jpg  
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Old 06-22-2011, 10:20 AM   #7
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Default rs4 3evo set up...need help

Yikes.....not going that way.....lol
It has been raining and we not able to go to the track yet..
We ordered the 19T & 23T....was planning to sell off the stock motor and get a new race engine....appreciate if you can list down some offordable race engine and pipe...
Should I be using the race clutch and check the differential while waiting for the parts and the track to dried up....thanks
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Old 06-22-2011, 10:28 AM   #8
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Sorry i cant help you much on legal engines. Ive heard the OS 12TZ is a monster, but pricey i guess. I was gonna try the OFNA/Picco .12 3port since its only $100.. but just went bigblock instead since i dont race.
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