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> 2.4s -6 engine fuel injection options
mb911
post Jun 26 2019, 01:31 PM
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So my 2.4 is fresh -0 miles with only start up minutes on it. I rebuilt the carbs and powdercoated the steel air filter assembly and replated all the hardware and am really thinking of selling the setup in favor of running a 3.2 fuel injection setup on likely with an aftermarket ecu as I don't think the dme will work well with my setup..

Any thoughts or experience with what I am proposing? Now note that I have done this on a 3.0 before with good success just no experience with a higher compression low displacement solex cam engine.. Thoughts?Attached Image
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Tdskip
post Jun 27 2019, 09:13 AM
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@Mark Henry - what would that sort of set up cost?
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Mark Henry
post Jun 27 2019, 09:57 AM
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QUOTE(mb911 @ Jun 27 2019, 09:36 AM) *

Mark it looks like something that would be perfect for me.. Once I get all the 3.2 intake system in place I will need to check this out more in depth.. One question though does it come with injectors?? I didn't see that on their website..


No system does, they do sell them separately, but you can find them cheaper.

QUOTE(roblav1 @ Jun 27 2019, 10:45 AM) *

Same sort of boat I'm in...trying to figure out either PMO 46 or engine management system. 3.0 liter, 9.5 CR, same cams as Mark.
Not sure what Ben was referring to with carb changes depending on temperature. I never had a problem... in cold, just press accelerator pedal a few more times to get it going. Then it'll run bailky for 5 minutes until warm. BTW, most of my experience is with small displacement Solex and S cam engines with Webers.


This is where it gets harder to tune than Ben's app.
ITB's and large duration cams have a very poor vacuum signal that the MAP sensor needs to read. My T4, 2.6, hot cam, 46mm ITB's, I could never get a good enough vacuum signal to run on the MAP sensor so I have to run TPS only (alphaN). In very simple layman terms the MAP sensor acts like the a carb accelerator pump, poor vacuum could be loosely compared to a hole in the accelerator pump diaphragm. As soon as I gave up on the MAP and tried TPS only all my issues disappeared.

(BTW I just know someone going to argue that the MAP isn't an accelerator pump no matter my "very simple layman terms" statement. (IMG:style_emoticons/default/rolleyes.gif) )

QUOTE(Tdskip @ Jun 27 2019, 11:13 AM) *

@Mark Henry - what would that sort of set up cost?


http://www.sdsefi.com/prices.html

Ben's application, fuel only

Em5-6D (includes harness) $1115
options needed
1 bar MAP sensor $73
TPS $90
Bosch 12X1.5mm Temp Sensor $39

I'd also get a fuel pump relay $30
Optional fast idle, $100, I didn't get this 10-30 seconds of holding the throttle and then it idles.

other items needed
-Injectors (new style injectors will need fuel rails, not sure but the 3.2 rails might work)
-intake and TB(s), (stock will work may need sensor bungs welded in)
-FI pump (stock FI will work)
-Pressure regulator (stock D-jet will work)
-WB O2 meter or at least the sensor (SDS does read through ECU so gauge is optional)
-return fuel line.

Likely I'm missing a few items.
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Posts in this topic
mb911   2.4s -6 engine fuel injection options   Jun 26 2019, 01:31 PM
914Toy   So my 2.4 is fresh -0 miles with only start up mi...   Jun 26 2019, 04:51 PM
mb911   Contacted bitz racing about megasquirt options and...   Jun 26 2019, 05:14 PM
Larmo63   My car has run pretty sassy on Webers for a long t...   Jun 26 2019, 05:44 PM
mb911   My car has run pretty sassy on Webers for a long ...   Jun 26 2019, 06:02 PM
dr914@autoatlanta.com   No I do not think so, once the carbs are set and y...   Jun 27 2019, 11:00 AM
mepstein   I’d leave it as is - the ultimate coffee table.   Jun 26 2019, 05:52 PM
Larmo63   Yeah, I see your point now that I looked at your l...   Jun 26 2019, 06:05 PM
rktmn247   I would contact al lkosmal X-Faktory on the bird...   Jun 26 2019, 06:41 PM
Mark Henry   sdsefi.com has about the simplest learning curve a...   Jun 26 2019, 07:26 PM
mb911   sdsefi.com has about the simplest learning curve ...   Jun 26 2019, 07:34 PM
Mark Henry   sdsefi.com has about the simplest learning curve...   Jun 26 2019, 07:48 PM
mb911   Mark what about cht?? And is there any base map or...   Jun 26 2019, 09:30 PM
Mark Henry   Mark what about cht?? And is there any base map o...   Jun 27 2019, 07:03 AM
mb911   Mark it looks like something that would be perfect...   Jun 27 2019, 07:36 AM
roblav1   Same sort of boat I'm in...trying to figure ou...   Jun 27 2019, 08:45 AM
gereed75   Do not have a system running yet but have been col...   Jun 27 2019, 09:06 AM
Tdskip   @Mark Henry - what would that sort of set up cost...   Jun 27 2019, 09:13 AM
Mark Henry   Mark it looks like something that would be perfec...   Jun 27 2019, 09:57 AM
mb911   @tdskip they are about 1300-1600 depending on wha...   Jun 27 2019, 09:58 AM
Mark Henry   I don't know if that's the right head temp...   Jun 27 2019, 10:22 AM
914forme   Ben :wavebye: It seems I have the system your look...   Jun 27 2019, 01:08 PM
mb911   Ben :wavebye: It seems I have the system your loo...   Jun 27 2019, 02:12 PM
sixnotfour   the main carb problem is Todays gasoline, if thats...   Jun 27 2019, 02:20 PM
roblav1   I'm on board with George's comment... and...   Jun 27 2019, 02:29 PM
Mark Henry   I do have to agree. Big swings in altitude, dirt, ...   Jun 27 2019, 03:44 PM
mb911   I think I am going to approach this as a 2 prong a...   Jun 27 2019, 04:17 PM
roblav1   I once built ITBs for a 3.2 out of 1999 to 2000 Su...   Jun 27 2019, 05:01 PM
Mark Henry   I once built ITBs for a 3.2 out of 1999 to 2000 S...   Jun 27 2019, 06:48 PM
roblav1   Here's a few pics of my attempt back in 2013. ...   Jun 27 2019, 07:13 PM
914forme   Triple Speed Triumphs are the hot ticket @MB911 ...   Jun 27 2019, 08:31 PM
targa72e   I have used a 3.2 Intake on several engines with p...   Jun 27 2019, 11:01 PM
ClayPerrine   PMO makes throttle bodies to replace the Webers., ...   Jun 28 2019, 10:31 PM
mb911   Some parts came in this week for this.. Still plan...   Jul 13 2019, 10:03 AM
ottox914   +1 for SDS. Mark speaks the truth. i got my syst...   Jul 14 2019, 07:34 PM
rick 918-S   All that stuff is cool but if your cam isn't ...   Jul 15 2019, 12:16 PM
mepstein   All that stuff is cool but if your cam isn't...   Jul 15 2019, 01:05 PM


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