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Old 04-03-2014, 12:30 PM   #1
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Mapping for superchargers

I hear a lot of guys really struggling with remapping their bikes once the supercharger is fitted. Most are going a complicated way with 3 bar map sensors, Mapping fuel against boost etc.
To be honest mapping a Rotrex supercharged engine with just a PC5 is by far the simplest and most reliable. Boost comes up progressively with revs with a Rotrex supercharger. Unlike a turbo which has a piece of elastic in the middle, where boost varies with load and it goes from vacuum to big boost is a short rev range. Nothing wrong with turbo's this isn't a slight against them. This is about ease of mapping. If you map fuel against throttle angle with a PC5 and pull ignition out at the top end to stop det, your home and dry. Sure afr may vary with altitude a little but not much as its forced induction and as we sell the blower with an intake restriction to keep boost at 6 psi max then the blower will pull more air in if its thinner to compensate. Simples
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Old 04-03-2014, 12:50 PM   #2
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wheres BIG POPPA
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Old 04-03-2014, 07:10 PM   #3
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right here
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Old 06-18-2014, 06:14 AM   #4
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Is there anyone out there using a DTT on a TTS Performance SC Kit fitted to a stock 1250cc V-Rod?
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Old 06-18-2014, 07:40 PM   #5
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you will have to find a top notch tuner to get the DTT to work.. mine worked with the sprintex supercharger on stock motor but you need to know how to set it up properly..
do what TTS recommends it works... DTT will not give support for supercharger applications.. even though they have the 3bar set up..
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Old 10-29-2014, 02:57 AM   #6
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not much feedback on SEPRT's, which i have.
prefer not too buy a PC5 if i can get away with it, $$$$$$$$
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Old 10-29-2014, 05:53 AM   #7
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I am running a SEPRT with my TTS Supercharger if you have someone that can tune it should work fine , make sure they are able to tune both cylinders
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Old 10-30-2014, 02:07 AM   #8
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thanks BP 66,
about a week or two before i receive my TTS.
Already fitted Barnett clutch springs, and that'll be all i'm doing at the moment.
Any traps/info etc that i should look out for with the fitment?
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Old 10-30-2014, 10:31 AM   #9
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Quote:
Originally Posted by Cossack View Post
thanks BP 66,
about a week or two before i receive my TTS.
Already fitted Barnett clutch springs, and that'll be all i'm doing at the moment.
Any traps/info etc that i should look out for with the fitment?
Are you using the DTT with a TTS street or race kit? DTT seems to be a great system and very easy to use compared to most of the others I have used over the years.

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Old 11-17-2014, 04:40 AM   #10
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No DTT.
TTS Street kit ( Being sent today, finally )
Aldo at Harley Heaven Adelaide, reckons it won't be a problem in regards tuning with the SEPRT.
Time will tell.......
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Old 11-17-2014, 08:18 AM   #11
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if you want to waste 900$ get a DTT but no need to replace the ECM
I found out the hard way..
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Old 11-17-2014, 08:56 AM   #12
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I have had great luck using DTT on my race bike. We now have a street bike with an S/C and a DTT making over 200hp without any problems. We are now tapped out on the supercharger that we're using on the street bike so we will be going to try it with a TTS race kit and a DTT...

DTT works great on the S/C street bike does not have switchable maps but we us the user input to remove timing. so when he goes to the track and add race fuel flip of the switch and he has 30 more HP.

Just because BP 66 could not seem to figure it out, does not mean itís a waste of 800.00.
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Old 11-17-2014, 10:54 AM   #13
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just saying its not needed I would of loved to have it on the bike even Chris from DTT had trouble with it helping Vreeland try to tune it. maybe something was wrong with mine dont know they spent a lot of time on it , it seemed to be as they said fighting itself trying to make the correct changes.. he put the SEPRT in with a base map he had and wala it was running .. I want to actually run a DTT and my guy said he could get it to work so it may happen.. might even get me passed the 220hp mark .
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Old 11-17-2014, 05:31 PM   #14
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Quote:
Originally Posted by TTS PERFORMANCE View Post
I hear a lot of guys really struggling with remapping their bikes once the supercharger is fitted. Most are going a complicated way with 3 bar map sensors, Mapping fuel against boost etc.
To be honest mapping a Rotrex supercharged engine with just a PC5 is by far the simplest and most reliable. Boost comes up progressively with revs with a Rotrex supercharger. Unlike a turbo which has a piece of elastic in the middle, where boost varies with load and it goes from vacuum to big boost is a short rev range. Nothing wrong with turbo's this isn't a slight against them. This is about ease of mapping. If you map fuel against throttle angle with a PC5 and pull ignition out at the top end to stop det, your home and dry. Sure afr may vary with altitude a little but not much as its forced induction and as we sell the blower with an intake restriction to keep boost at 6 psi max then the blower will pull more air in if its thinner to compensate. Simples
You can do this just as easy with a DTT, Just your timing is now defined by MAP sensor/RPM. 7500 to 10,000 we have the same through map sensor. 7500 8000 8500 9500 10000 all have different timing but the same though the map sensor range. Not sure if itís the best way but seems to be working for now.
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Old 11-17-2014, 06:51 PM   #15
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so are you using the the 300kpa speed density program with a 3bar map sensor or just the ECM and wideband 02
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