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WydRyd WydRyd is offline
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Join Date: Mar 2002
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Originally posted by 930gt-40r
What is the diff. between stage 3 and pressure sensing? is it just the use of a mass air and no tps mod?
Stage3 is just the engine build spec and associated power level. Has nothing to do with the type of engine management solution used.

My Stage3 still uses the OEM BOSCH AFM setup, which works OK, but I'd rather have the MAP Sensing setup in a heart-beat. At ~USD$2.2k, it's a great deal (compared to Motec/Autronic setup etc).

Their MAP ECU comes preprogrammed with a map to get you running asap. Apparently it's pretty accurate and may need minor adjustments for your application. To get things sport on, Todd will re-program your maps for you and send the binary image to you via e-mail for you to burn on EPROM and try in your ECU. All you do is supply him AFR's plotted against boost/load/rpm and he'll do the fine adjustments as deemed necessary.

A few guys over on Rennlist run the Proto TT setup with MAP Sensing ECU and they have only positive things to say about it! I can't wait to get it myself People typically say "the car is totally transformed and it feels like the engine has been swapped out with a BIG naturally aspirated motor".
'89 911 Turbo Cab
Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition
Old 01-11-2007, 03:07 PM
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