Air intake temp sensor.
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Fast idle solenoid.
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TPS
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Injector resistors
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Map sensor
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Cold start injector block off plate.
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Mixture meter
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Rich / Lean adjustment knob
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Programer
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Backpad removed and carpeted
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ECM , fuse block and relays
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I have been driving the car with the SDS all summer
and couldn't be happier.
I have not had the car on a dyno to be expertly tuned.
I tuned it myself with the narrow band o2 sensor and the mixture metre
and by sound and feel. It starts and runs perfect every time.
I'm sure that if I got it tuned professionally it would be even better.
It's a nice simple system. I would recommend it to anyone.
Do you have any CHT or EGT data on your setup? Typically, these engines tend to run pretty hot when tuned to run at stoich.
VERY nice. Looks very well thought out and installed...The mark of a pro
QUOTE (lapuwali @ Nov 14 2005, 08:20 PM) |
Do you have any CHT or EGT data on your setup? Typically, these engines tend to run pretty hot when tuned to run at stoich. |
Nice job, Ray. Looks like a super sharp car you've got there. I've got an SDS system lying around that I plan to put in along w/ a Suby 2.5L engine. I'm glad to hear that your experience was so straightforward and positive. I'll be sure and keep you in mind when I (eventually) get around to messing with it.
p.s. Any shots fo your Hall sensor/magnet install ? Probably impossible to see it now.
QUOTE (jsteele22 @ Nov 14 2005, 08:37 PM) |
Nice job, Ray. Looks like a super sharp car you've got there. I've got an SDS system lying around that I plan to put in along w/ a Suby 2.5L engine. I'm glad to hear that your experience was so straightforward and positive. I'll be sure and keep you in mind when I (eventually) get around to messing with it. p.s. Any shots fo your Hall sensor/magnet install ? Probably impossible to see it now. |
QUOTE (Ray Warren @ Nov 14 2005, 05:31 PM) | ||
Unfortunately there is no extensive data logging with the SDS. http://www.sdsefi.com/datalog.htm I do have a cylinder temp gauge and it usually runs about 275 to 300. My oil temp gauge is a factory gauge and it usually runs around the "T". |
QUOTE (lapuwali @ Nov 14 2005, 08:52 PM) | ||||
I assume you're running off a thermocouple under the spark plug for the CHT? If so, then you're in great shape, and it looks like the usual rule of thumb about running hot near stoich may not be true. |
CORRECTION
I just went out to the garage and looked at my temp gauge.
It usually runs around 300 to 325.
QUOTE (Ray Warren @ Nov 14 2005, 06:12 PM) |
CORRECTION I just went out to the garage and looked at my temp gauge. It usually runs around 300 to 325. |
Ray,
Looks really good. Tell me about the cold-start solenoid. What's it off of, and will the ECU cycle it to hold a programmed idle rpm?
-Ben M.
QUOTE (airsix @ Nov 15 2005, 03:11 PM) |
Ray, Looks really good. Tell me about the cold-start solenoid. What's it off of, and will the ECU cycle it to hold a programmed idle rpm? -Ben M. |
what a clean install...makes me want to delete all my pictures of my FI install
QUOTE (airsix @ Nov 15 2005, 03:11 PM) |
and will the ECU cycle it to hold a programmed idle rpm? -Ben M. |
Looks good Ray!
Glad things are working out for you, helps having a nice fresh engine
If your narrow band is off like mine it was running rich...hows the gas mileage?
Who needs data logging.
QUOTE (Mark Henry @ Nov 15 2005, 07:20 PM) |
Looks good Ray! Glad things are working out for you, helps having a nice fresh engine If your narrow band is off like mine it was running rich...hows the gas mileage? Who needs data logging. |
You need a WB...Your mileage should be better than stock, your power would be better too.
We'll figure out something next spring...maybe a small rental charge plus shipping and you can use my WB...you would only need it for a week.
Once it's set up on a WB your NB will be totally useless.
QUOTE (Mark Henry @ Nov 15 2005, 07:45 PM) |
You need a WB...Your mileage should be better than stock, your power would be better too. We'll figure out something next spring...maybe a small rental charge plus shipping and you can use my WB...you would only need it for a week. Once it's set up on a WB your NB will be totally useless. |
Thanks for the info, Ray. Really nice work.
-Ben M.
does this system replace the factory brain? do you use stock fuel injectors?
QUOTE (toon1 @ Nov 16 2005, 02:41 PM) |
does this system replace the factory brain? do you use stock fuel injectors? |
QUOTE (lapuwali @ Nov 16 2005, 07:20 PM) |
I'm not sure what you'd do for the CHT. |
QUOTE (Mark Henry @ Nov 15 2005, 05:45 PM) |
Once it's set up on a WB your NB will be totally useless. |
Once set-up with a wide band it will be out of the narrow bands range...it won't give any reading accept maybe a blip on decel.
I've tried closed loop, I didn't like it because it runs too close to stoch. The aircooled has better head temps running in the high 12's.
I run closed loop in the 912 with my SDS and it works great. I just set it up to only be active at cruise speeds and stable MP. The engine runs so cool all the time (250F) That I can afford a bit more temp anyway.
I LOVE SDS!
Yeh I didn't play with the closed loop a whole lot, running too good open.
What did you do Jake? Put the value at over 3000rpm?
Anyways it doesn't matter now as I think my season is done...were getting snow today...as soon as the salt trucks come out it's game over till spring.
It comes on at 3250 and goes off at 3600 the MP is at about 10.9-11.6 so the target area that its functional is a very small window where I cruise at between 70-80 MPH in 5th
I had to watch EGT more than head temp when doing this because if they creep up 2 liter heads are bad about exhaust seats pockets drooping and then the valve job is wated
Thanks for the info, guys. Always love to learn more about this. So in closed loop mode, does the SDS always pull you back towards stoich, even with the new wideband firmware ? Or can you set it to maintain a different AFR ? The model I have is the previous generation (SDS-EM3, IIRC) that didn't have that option. Although I'm pretty stoked about getting it set up (if I ever get my new engine...), I'm pretty tempted to sell the SDS and go with megasquirt; I'm real into electronics and embedded controllers, so it's right up my alley.
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