5sfte and advanced timing

[jlantz85]

i advanced the timing to about 13 degrees, now im going 5sfte and was wondering what i should do with my timing. im going to be using the msd btm also. should i put it back to 10 degrees or what? thanks for any help

[Weasy2k]

i would get somethign that has boost retard control so that you can pull some timing when under boost to help keep detonation at bay

What is your setup going to be like?

[jlantz85]

thats why im using the msd btm to control timing under boost.
my setup is going to be the ct26 for now, i want the ct20 but dont really have the money right now
tmic
mkIII supra injectors
ssac manifold and 3" downpipe, full 3" exhaust with no mufflers or cat
ported and polished head
turbo xs rfl bov
3sgte oil pan/map sensor
electronic boost controller
some sort of piggyback for a/f
i also replaced alot of seals, gaskets, timing belt etc. the routine stuff

that being said.... with the msd btm should i set the timing back to stock?

[Weasy2k]

with a good piggyback like the smt6 you wont need the MSD BTM as the smt6 has a boost retard function.

The smt7 has a built in boost controller too :P


The ct26 will do you fine, make sure eevrything is tuned right. I have driven a couple turbo 5s's and they are pritty quick!

[jlantz85]

i was checking out the smt6, is it plug and play, also how do you tune it? sorry if these are dumb questions ive never messed with this stuff before. thats why i was thinking of using the btm, its simple

[Weasy2k]

its not plug and play but its about 5-6 wires and your laughing.
To make it plug and play the price just jumps and people dont want to pay an extra 200 bucks for that.

Its not dumb to ask questions on how stuff works.

[jlantz85]

do you tune it with a laptop? and is it pretty easy to understand once your messing with it?

[Weasy2k]

yes and yes

and im not bs'ing you becuase i sell it...you can get the software to play with it...

[jlantz85]

how much would i be looking at for the software and the smt6 with the extra cable thats 10 bucks

[Weasy2k]

for mr2board members during the summer its 380usd shipped with comm cable

[jlantz85]

cool, once i get my other car sold ill probably get this. thanks

[erioshi]

I assume the MT-6 can modify both the MAF and timing values. My question is does it do that through absolute values or offset values?

Thanks!

[Weasy2k]

explain what you mean its late and i cant think striaght right now...

[erioshi]

Originally Posted by Weasy2k

explain what you mean its late and i cant think striaght right now...

Sorry - it can be a bit confusing. The two Piggy-backs I've tuned with before each controlled timing and MAF voltage in different ways.

The first one used absolute values and completely discarded and OE computer input just like a stand alone. Setting 10 degrees BTDC gave you 10 degrees BTDC unless the piggy-back's knock sensor circuit pulled timing.

The other piggy back that I have alot of experience with uses offset or relative timing and MAF values. Instead of changing from 10 degrees BTDC to 12 degrees BTDC by changing a cell from +10 to +12, you would put a +2 in the cell (assuming that 10 degrees BTDC was the stock value). It also uses the OE knock sensor circuit and allows the OE computer to make timing and fueling changes below your map. Very very safe, but you give up some performance potential.

With an offset based system, a few good sensors, and some cute tricks in software you can do some really amazing things - like dynamic self tuning. Imagine having your car adjust it's behavior automatically based on the octane of the gas in your tank... It works and can be daily driver reliable. It also works amazing well in big boost, over the top turbo applications - imagine the car adapting not just to fuel, but temperature, heat soak and other conditions automatically.

And when are you going to call me about those cams?

[Weasy2k]

Ahhh ok so your talking about full tuning vs adding/subtracting type :P sorry i use the simple terms

Yes its a offset based system, similar to what you mentioned above but without th eknock sensor ability.

PM me about the cams :P