T Boost

[Buster Hymen]

Can anyone tell me why the resistor is needed in the diagram in the following link:

http://vmaxoutlaw.com/main.html

I'm going to try and get my 5" tach to work and wanted to know if I could just get the 2 diodes or if the resistor was necessary.

Thanks,

Jeff

That link doesn't work, it just goes to the main page.

 

[KJShover]

Here they are:

 

[hubeerjw]

Thanks KJ for getting the images in there!
Jeff

Should have some movies of the turbo running tonight!

 

[richwrench]

I'm no engineer, but I'm guessing the resistor protects the circuits inside the controller. A no-load circuit could get hammered by a voltage spike. Just my 2c - BTW I built this exact T-Boost from this site & it works ****. I know it won't help 1/4 mile times. but when I'm in the mood it's fun to play with. Other times I just leave it switched off.

 

[rex4x4]

so if u leave it off ..... v boost will kick in at its normal 6000rpm still ... ??? and u turn it on it will kick in at 3000rpm .. ????:ummm:

 

[gamorg02]

depends if you buy the tboost, or if you do your own, what type of switch you put in.

if you buy tboost there are three settings (6k - off - 3k)

i'm sure you could buy your own to do a 6k/3k two-way setting

 

[richwrench]

so if u leave it off ..... v boost will kick in at its normal 6000rpm still ... ??? and u turn it on it will kick in at 3000rpm .. ????:ummm:

Exactly !

 

[vmax190]

Exactly !

the t-boost i have in the off position the vboost is on all the time, sob it is scarry when you crack it.unk:

 

[113s&s]

the t-boost i have in the off position the vboost is on all the time, sob it is scarry when you crack it.unk:

i would think vboost open all the time would hurt the low mid pulling power plus run rich as hell

 

[vmax190]

i would think vboost open all the time would hurt the low mid pulling power plus run rich as hell

yes it is rich, but first and second gear it is a blast.:eusa_dance: