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Planning on upgrading my throttle Body to that from 98 99 00 01 Mustang 4.6 Automatic the opening is about the size inner dia of the sealing O-ring on the stock
T/B.
It will need to plumed for vacuum ports and redrilled to match our bolt pattern.
it is setup to use a screw type bypass valve but it isn't tapped or bored not sure if I will use that option.
Car is currently being set up to run a MegaSquirt II so AFM will be removed 3" pipe with IAT or Hollowed out to keep it looking stock. I will be using a Bosch 2 wire Idle Control Valve from a Volvo p/n GEGT7610-324 to control idle warm up.
Why? well the whole set up is cheaper than sourcing a 951 T/P sensor and I think the MS2 can handle the added airflow and maybe gain me some horse power.
http://www.ebay.com/itm/311393781516?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Why do we all? The age old quest for more speed and Horse power MegaSquirt likes a TPS to run smother. An since I will be removing what has been referred to as the biggest choke point in the NA intake tract. the throttle body with TPS was $27 with shipping from. A used 30 yr old 951 TPS is close to $100 a new one is almost $200.
The car will be used to commute from UT to San Diego on the weekends plus Miller motorsport Park is less the 10 miles form where I live, the Town I live in is just shy of 5'k in altitude to dam near sea level in San Diego so if it gives me a few extra Hp's or ft lps of torque climbing the mountains for less the $100 and a couple hours of my time seems worth it to Me.. the NA was weak on power in 1986.. It's even worse now..
Can the MS control the idle air valve? That's the only advantage I see, particularly if you are running A/C.
Yes it can it get cold here in UT helps keep the car running until it warms up with out setting the idle to some ridiculous amount.. my stock one crapped out a yr ago but then I was living in southern Ca so it wasn't a issue it is now in UT..
MS2 Ver 3.0 Semi Sequential Injection, ICV PWM, Single coil, external MAP for Alt correction
Injectors: Bosch 0280155868 flows 375 cc/min at a tested pressure of 3 bar, or 36 lbs/hr at 43.5 psi. Latency (dead time)@ 12volts=0.621 ms@ 14volts=0.391 ms. FUEL NOZZLE: 4-HOLE DISC Atomization High-impedance/high-resistance/14.0 Ohms
Crank Sensor BWD Part # CSS718
IAT Sensor Connector BWD PN 28419A
IAT Sensor BWD WT3051 98 99 00 01 Mustang 4.6
TPS Sensor MPI 2-99035 98 99 00 01 Mustang 4.6
CLT Sensor 944
944 DME Male conector 825213-1 35 POS TAB HOUSING http://www.te.com/usa-en/home.html
Wide Band O2 Sensor Contoller Spartan 2 OEM from 14Point7 http://www.14point7.com/products/spartan-2-oem
O2 Sensor Bosch LSU 4.2 Wideband O2 Sensor
Idle Control Valve Bosch 2 wire Idle Control Valve from a Volvo p/n GEGT7610-324
2nd Map sensor GM STYLE 3BAR 3 BAR MAP Sensor
Throttle Body 98 99 00 01 Mustang 4.6 Automatic Rwd
I do not believe you will gain anything by going to a slightly bigger TB on an NA, that was my point. I wrote the book on Megasquirting these cars so I get you on modifying to chase the power and drivability, but I think you're barking up the wrong tree here is all. With all due respect, its your car
No point...
I had a 944 TB bored to 60mm and dyno tested it - 0 gain at any RPM.
And I had a MAF conversion and full tuning capability to "dial it in".
No point...
I had a 944 TB bored to 60mm and dyno tested it - 0 gain at any RPM.
And I had a MAF conversion and full tuning capability to "dial it in".
I also had a bigger TB at one point but my Engine man said "No", and the stock one all be it polished has as you know produced good results.
He was talking about the TB bore being matched for everything, the way the AFM works, Pulses and the inlet manifold design all (volume) being matched and calculated for it. you may think without the AFM it could be re configured with the MS but if you've tested a bigger TB and found nothing there's the answer...
the 944S2 (208bhp) and 968 (236bhp) used the same size TB as the NA did, too.
i went into my dyno test not expecting any gains, so i wasn't so disappointed when my suspicions were true...
the 944S2 (208bhp) and 968 (236bhp) used the same size TB as the NA did, too.
i went into my dyno test not expecting any gains, so i wasn't so disappointed when my suspicions were true...
the 944S2 (208bhp) and 968 (236bhp) used the same size TB as the NA did, too.
i went into my dyno test not expecting any gains, so i wasn't so disappointed when my suspicions were true...
Well even if there aren't any gains its still a cheaper set up than going out and buying a turbo TPS. I guess it will be the equivalent of a throttle cam.
So what was the configuration on your car when you had it Dyno'd?
I will am running 36 lb injectors not the stock 24 lb because I needed Hi-z injectors for the megasquirt didn't feel like doing the resistors.
With MS you can use any throttle body sensor you want, doesn't have to be a 951 piece.
On my VEMS for example I have an Audi TPS with the same sort of idle/WOT/potentiometer function like the 951 one. Bolts onto the NA TB.
There are lots and lots of pot-type TPS out there on Volvo and BMW and VW family cars that will work for you without needing to change TB.
11-18-2016, 11:56 PM
New Throttle Body for 944 NA
Any suggestions? 
