First turbo build, mspnp vs. motronic turbo chip

[Kozworth]

2.7t
Oringed with arp and stock gasket.

H1c 8 blade.

I am looking to make 300/350 whp but reliably. I've read a lot about how a chip is bad because runs pig rich open loop and is only good for 10 psi.

Issue with megasquirt is I have no experience with tuning or wiring all new sensors. I feel it's easier to just tune the Afm to a 12:1 and just keep it there rather then swap all new sensors.

For a reliable and first time user is the chip going to hinder this? Like I said above must be reliable looking to make this car a permanent sIly and drive a road trip this summer.

Thanks

[nando]

Mspnp all the way. Tuning is not hard, and you dont really need to do any wiring, what there is to do is really simple. The only sensor you really need is a wideband.

[Wrinckled]

2.7t
Oringed with arp and stock gasket.

H1c 8 blade.

I am looking to make 300/350 whp but reliably. I've read a lot about how a chip is bad because runs pig rich open loop and is only good for 10 psi.

Issue with megasquirt is I have no experience with tuning or wiring all new sensors. I feel it's easier to just tune the Afm to a 12:1 and just keep it there rather then swap all new sensors.

For a reliable and first time user is the chip going to hinder this? Like I said above must be reliable looking to make this car a permanent sIly and drive a road trip this summer.

Thanks

I'm in the same boat as you. Check out this:

http://www.r3vlimited.com/board/showthread.php?t=202653&page=5

It's MS but really plug and play. The guy built it right into the Motronic unit so even if you don't know about wiring - you can still install this yourself. Wideband would also be useful to monitor your AF ratio's - I suggest LC-1 by Innovative. If you have any other questions or wanna chat about turbo's send me a PM.

[Kozworth]

The issue with ms pnp for me is wiring a map sensor/cts/iat sensor. Odds are you'd have to splice the old connectors since I nightly doubt the BMW connector works on a gm sensor.

Also, I do not have a laptop to tune or have found a site that explains tuning ms. I feel it would be much easier just tuning the afm and regulating af ratio with a wideband. I've read that tcd chip is good up to 15 psi.

I would really prefer to do away with motronic but ms seems to have many variables that could allow something to go weong

[nando]

you don't wire a map sensor, or coolant sensor. the MAP sensor is built into MS and the CLT sensor can remain stock.

you can add an IAT sensor, or you can leave the AFM in place and use the IAT built into it. you could also make an adapter using the connector from an old AFM. the IAT pins are 1 & 4. it doesn't have a polarity. Doesn't have to be a GM sensor either (you could remove the one from inside the AFM, for example).

another sensor that could be done, but isn't absolutely neccesary, is the TPS. whodwho can build his PnP to use the stock TPS. the only thing you really need it is to activate certain things like idle. it can be used for acceleration enrichment but I prefer the map based or EAE better.

That leaves the wideband. you can wire that to plug into the stock O2 sensor plug. whodwho can help with that too.

you don't need an especially poweful laptop. you should be able to pick up a cheap used one for around $150 or less that will do everything you need. I'd look for something with either WindowsXP or Windows7. I have a thinkpad R70 that I paid $200 for and actually it's a great laptop.

[FLG]

As stated you don't need to wire really much.

GM iat sensor and throw on a e36 tps the rest remains the same.

I'd doubt you'd make those numbers on motronic.

Sent from my Galaxy Nexus using Tapatalk 2

[Kozworth]

you don't wire a map sensor, or coolant sensor. the MAP sensor is built into MS and the CLT sensor can remain stock.

you can add an IAT sensor, or you can leave the AFM in place and use the IAT built into it. you could also make an adapter using the connector from an old AFM. the IAT pins are 1 & 4. it doesn't have a polarity. Doesn't have to be a GM sensor either (you could remove the one from inside the AFM, for example).

another sensor that could be done, but isn't absolutely neccesary, is the TPS. whodwho can build his PnP to use the stock TPS. the only thing you really need it is to activate certain things like idle. it can be used for acceleration enrichment but I prefer the map based or EAE better.

That leaves the wideband. you can wire that to plug into the stock O2 sensor plug. whodwho can help with that too.

you don't need an especially poweful laptop. you should be able to pick up a cheap used one for around $150 or less that will do everything you need. I'd look for something with either WindowsXP or Windows7. I have a thinkpad R70 that I paid $200 for and actually it's a great laptop.

Thanks that actually helped a lot. For some reason I thought you had to make a custom map sensor and splice wires much like the lc 1. That still leaves me on the edge though because of tuning. I know the basics of short/long term fuel trim but as for everything else I am not too sure. The richer the better I assume

[nando]

do some reading. Buy Tunerstudio. you can tune pretty much all of your fuel on the street. there are lots of timing maps you can start from, but you should fine tune that on a dyno with feedback on Hp/Tq and knock.

it's not neccesarily true "the richer the better". you can do damage either way.

[Syncro325is]

I highly recommend whodwhos mspnp setup. Product is great, and the customer support is awesome. BTW i believe youre over in lambertville right? I'm over in Doylestown PA, about 45 minutes away if you want to check out the MS, I also have a moates emulator to tune the stock motronic dme.

[Kozworth]

That's a good idea, I would be down sometime after the holidays

[sayed ali]

mspnp Ftw

It's difficult to put a chip and get 350whp reliable ..