Megajolt MAP or TPS
Turbo Mini Forums

Bumping this thread for a question,
Turbo mini's are better off with MAP right?
and can i combine both TPS and MAP with megajolt to receive maximum effectiveness?
Thanks,
Naor

Apparently, I'm Wrong :[

No real benefit to tps on megajolt as it only does ignition. For something that also does fuel then tps is essential for acceleration enrichment. As far as I know the MJ can do only one/or the other anyhow.

Bumping this thread for another tough question,

What would be preferred for a turbo application, but on a small bore engine (998 for that matter),
When the turbo kicks in the reading will be fine possibly, but in idle i dont know if it could keep a good reading.
To my understanding the reading is important to manage correctly the ignition

So what will it be?

Edited by Funkyp on 4th Jun, 2011.

Apparently, I'm Wrong :[

Forced induction with megajolt you need map so that you can read the boost and set the timing accordingly.
My supercharged 998 is fine reading the signal at idle

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

no boost at idle...

There is no boost at idle or cruise. MAP reads above and below atmospheric pressure. In the case of the MJ it will read vacuum to 21.5psi.

Regardless of CC MAP is the only was with forced induction.

http://www.twin-turbo.co.uk
http://www.hillclimbandsprint.co.uk/default.asp

A man without a project is like a like a woman without a shopping list.

Im sorry for being dumb,
But i know there is no boost on idle nor while crusing, so the question remains, since there will be no reading (or not a good reading), is it effective to use MAP on small bore turbo'ed engines?
because you need ignition all around the rev array regardless of boost or no boost

Apparently, I'm Wrong :[

The choice of cam will determine how good the MAP signal is at idle, and since you are running a turbo, I will assume the cam you intend to use is a mild profile, and will be no bother.

If on the other hand you are building a screaming turbo engine with a race profile cam, it might be problematic, but then, idle isn't much of an issue anyway.

own a turbo car and your not on boost? ou must be driving it wrong :)

If you don't want to go MAP and your more worried about idle ignore the advice and buy TPS.

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

Why do you think there will be a bad signal? And what do you mean by a bad signal? You can use MAP on NA cars it just uses the vacuum part of the map, which is basically the same as a turbo car off boost.

Why do you think it will be a specific problem on small bore, this implies that whatever you thing the problem is it will go away with a bigger engine.

http://www.twin-turbo.co.uk
http://www.hillclimbandsprint.co.uk/default.asp

A man without a project is like a like a woman without a shopping list.