Hai guys,im just wondering which would reali be benificial for drag racing??traction control from motec 400 or getting a quaife lsd..thanks

 

both

 

forget about traction control, get quaife or spool, traction bars and good slicks.

 

well since some sanctioning bodies disallow traction control, the quaife would be the way to go.

 

Could someone explain how traction control works on EMS's? For example like AEM?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BolivianFuego &raquo;</TD></TR><TR><TD CLASS="quote">Could someone explain how traction control works on EMS's? For example like AEM? </TD></TR></TABLE>

stepped boost control.

 

or ignition control

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BolivianFuego &raquo;</TD></TR><TR><TD CLASS="quote">Could someone explain how traction control works on EMS's? For example like AEM? </TD></TR></TABLE>

You have to run a pass with very good traction to calculate an engine acceleration rate baseline. From there you "tell" the AEM what you consider too much engine acceleration rate per gear. When this rate is exceeded ignition/fuel will be cut to bring the acceleration rate down. When setup correctly this works great. Feels like a slipping clutch though . This is not as easy as most people think. The logic in the AEM is sort of difficult to understand. Lets just say it will take a very long time till you get it even close to Mercedes or BMW's traction control. BTW, get the Quaiffe your going to need it sometime or another.

 

Interesting. Good response, thanks!

 

Always do what you can to improve mechanical grip. The traction control will only let you accelerate at the threshold of mechanical grip. The more grip you have the faster you can accelerate, until the point you have 100% of the grip necessary. The traction control feature only helps when you have exceded the available traction.

 

Runs off wheel speed senosrs activated to the rear wheels..You setup a base map with no wheel spin then the graph overlays with your track graph..Once it sees any wheels spin or change in the mph curve it changes the timing curve which holds it right on the limit of breaking traction..Its pretty neat actually, kinda sounds like a two-step going off down the track..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by msmotorsports &raquo;</TD></TR><TR><TD CLASS="quote">

You have to run a pass with very good traction to calculate an engine acceleration rate baseline. From there you "tell" the AEM what you consider too much engine acceleration rate per gear. When this rate is exceeded ignition/fuel will be cut to bring the acceleration rate down. When setup correctly this works great. Feels like a slipping clutch though . This is not as easy as most people think. The logic in the AEM is sort of difficult to understand. Lets just say it will take a very long time till you get it even close to Mercedes or BMW's traction control. BTW, get the Quaiffe your going to need it sometime or another.</TD></TR></TABLE>

A buddy of mine is a tech for AEM, they setup traction control on a 1200hp Supra and couldnt get it to spin in the rain.. As far as it goes, its really not worth setting this up unless your trying to run fast on a street tire...Anybody that is drag racing should be able to eliminate spin or traction problems through boost control..staggering boost with a quad stage control will solve majority of the issues people face with spinning..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1FSTHATCH &raquo;</TD></TR><TR><TD CLASS="quote">Runs off wheel speed senosrs activated to the rear wheels..You setup a base map with no wheel spin then the graph overlays with your track graph..Once it sees any wheels spin or change in the mph curve it changes the timing curve which holds it right on the limit of breaking traction..Its pretty neat actually, kinda sounds like a two-step going off down the track.. </TD></TR></TABLE>

But on AEM It states that it doesnt run off wheel speed sensors. Does Motecs run off that?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AEM &raquo;</TD></TR><TR><TD CLASS="quote">
Finally a way to put that power to the ground. With our programmable traction control, you can get the 60 ft times you need. No individual wheelspeed sensors are required and you get to program the allowable acceleration rates based on RPM and Gear. This is included with every AEM EMS sold at no additional cost!
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Quote, originally posted by AEM »

Finally a way to put that power to the ground. With our programmable traction control, you can get the 60 ft times you need. No individual wheelspeed sensors are required and you get to program the allowable acceleration rates based on RPM and Gear. This is included with every AEM EMS sold at no additional cost!
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Interesting... Im having a hard time understanding how rpm vs gear could be a reference for traction control (w/out input signal from wheel speed sensor). Obviously the standalone is fed with each gears ratio, fd ratio, tire diameter to get the total drive ratio of each gear in order to determine top speed of a specific gear. How could these factors be compared vs engine rpm alone to control traction? I could see it working with rpm vs gear vs vehicle speed. sorry just trying to make it all fit in my head . anyone willing to explain?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kiwak &raquo;</TD></TR><TR><TD CLASS="quote">Hai guys,im just wondering which would reali be benificial for drag racing??traction control from motec 400 or getting a quaife lsd..thanks</TD></TR></TABLE>

Traction control when tuned properly is beneficial for launching.I managed to shave down 0.4 sec in the 60ft timing with traction control.Quaife lsd really works well too but if your car is not torque steering during the run, then it is not really necessary for a Quaife lsd.