TIMING RETARD

MASTERS · 10-21-2009, 08:09 PM

hi, my name is dustin and i have a 87 mr2. I just rebuilt the motor with 8:1
pistons and it runs fine with the stock ecu. I've got all I need to turbo it, but I
dont know what to do in terms of engine managment, basicaly I need to fined
a way to pull the igntion timing back once the boost comes on. the ecu is
a n/a with an afm. I was a turd and melted the corners of my old pistions by not being able to pull the timing back. I am a mechanic and all the nut and bolt stuff went just fine but now I need help from people who arent electronic
turds like my self. I love this car but I dont know were to go from here. Im also brand new to the forums so sorry if anoy with dumb question.

killermillermr2 · 10-21-2009, 08:19 PM

I am using a MSD BTM (boost timing master) to pull timing on my 5sfte. It will retard timing a selected amount per psi of boost. Kind of a crude device but it works. something that controls fuel and timing together is a better option.

MASTERS · 10-21-2009, 08:43 PM

thats cool, what motor is the 5sfte, are you running that modual with a n/a ecu.
I ask cuz if that would work with my n/a ecu while boosting it that would be awsome.

David · 10-21-2009, 09:12 PM

The 5sfte is the stock NA MKII(1991-1995) MR2 engine with a turbo added on.

killermillermr2 · 10-21-2009, 09:27 PM

^what he said

(US stock NA motor=5sfe)

I am running the stock NA ecu.

MASTERS · 10-22-2009, 06:50 PM

WHERE DOES IT WIRE INTO ON YOUR CAR? IS IN NEAR THE COIL. OR DOES IT GO BEFORE
THE ECU. BASICALY HOW HARD TO WIRE UP IS IT? IT DOSNT LOOK TO BAD.

killermillermr2 · 10-22-2009, 07:39 PM

It is really easy to install. You will cut the wire going from the igniter to the coil and make the corrections there. The ecu wont even know its there.

YOU WILL NEED A 8910eis TACH ADAPTOR. This will amplify the signal going into the MSD so it can read it. There is a good diagram I was given, I will see if I can find it again.

Here it is:MSD BTM 5462/8910eis install help

MASTERS · 10-23-2009, 09:37 AM

THANK YOU SO MUCH DUDE. IM PROBABLY GOING TO GET THE BTM, A GOOD KNOCK SENSOR, AND A WIDEBAND O2 AND GUAGE BEFORE BOOSTING IT AND GO FROM THERE.
THAT DIAGRAM IS A BIG HELP. I CANT BELEVE THE STUFF YOU GUYS KNOW.

killermillermr2 · 10-23-2009, 10:02 AM

Just passing it on. I had to learn it on here myself.

Before you commit to the btm, look up SMT-6 or SMT-7. Those will let you control fuel and spark in one box. Better than a BTM and SAFC(as I have now), and if you have a wideband why not tune in you fuel?

MASTERS · 10-23-2009, 05:40 PM

OK I WILL LOOK AT THOSE AND GET BACK TO YOU.

David · 10-24-2009, 08:25 PM

I THINK YOU LEFT CAPS LOCK ON.

MASTERS · 10-30-2009, 01:32 PM

ok I looked at the smt6 and 7, and megasquirting. I think im going to to with the btm 5462 and adapter. thanks for the tip and wiring diagram.

killermillermr2 · 10-30-2009, 02:21 PM

You are welcome. There is also a 6462 that does the same thing, but is a better model. I am not sure exactly what the differance is, but I think the 6462 has the 6al ignition stuff along with the boost retard feature.

10-21-2009, 08:09 PM	#1 (permalink)
MASTERS No Skills Join Date: Oct 2009 Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	TIMING RETARD hi, my name is dustin and i have a 87 mr2. I just rebuilt the motor with 8:1 pistons and it runs fine with the stock ecu. I've got all I need to turbo it, but I dont know what to do in terms of engine managment, basicaly I need to fined a way to pull the igntion timing back once the boost comes on. the ecu is a n/a with an afm. I was a turd and melted the corners of my old pistions by not being able to pull the timing back. I am a mechanic and all the nut and bolt stuff went just fine but now I need help from people who arent electronic turds like my self. I love this car but I dont know were to go from here. Im also brand new to the forums so sorry if anoy with dumb question.

10-21-2009, 08:19 PM	#2 (permalink)
killermillermr2 Honda Hunter Join Date: Dec 2007 Location: Colorado Posts: 701 Thanks: 22 Thanked 22 Times in 22 Posts iTrader Rating: (6/100% )	I am using a MSD BTM (boost timing master) to pull timing on my 5sfte. It will retard timing a selected amount per psi of boost. Kind of a crude device but it works. something that controls fuel and timing together is a better option. Attached Thumbnails

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10-21-2009, 08:43 PM	#3 (permalink)
MASTERS No Skills Join Date: Oct 2009 Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	thats cool, what motor is the 5sfte, are you running that modual with a n/a ecu. I ask cuz if that would work with my n/a ecu while boosting it that would be awsome.

10-21-2009, 09:12 PM	#4 (permalink)
David Take a picture trick! Join Date: Jun 2007 Location: Tampa, Fl. Posts: 1,294 Thanks: 111 Thanked 25 Times in 25 Posts My Google Map iTrader Rating: (4/100% )	The 5sfte is the stock NA MKII(1991-1995) MR2 engine with a turbo added on.

10-21-2009, 09:27 PM	#5 (permalink)
killermillermr2 Honda Hunter Join Date: Dec 2007 Location: Colorado Posts: 701 Thanks: 22 Thanked 22 Times in 22 Posts iTrader Rating: (6/100% )	^what he said (US stock NA motor=5sfe) I am running the stock NA ecu.

10-22-2009, 06:50 PM	#6 (permalink)
MASTERS No Skills Join Date: Oct 2009 Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	WHERE DOES IT WIRE INTO ON YOUR CAR? IS IN NEAR THE COIL. OR DOES IT GO BEFORE THE ECU. BASICALY HOW HARD TO WIRE UP IS IT? IT DOSNT LOOK TO BAD.

10-22-2009, 07:39 PM	#7 (permalink)
killermillermr2 Honda Hunter Join Date: Dec 2007 Location: Colorado Posts: 701 Thanks: 22 Thanked 22 Times in 22 Posts iTrader Rating: (6/100% )	It is really easy to install. You will cut the wire going from the igniter to the coil and make the corrections there. The ecu wont even know its there. YOU WILL NEED A 8910eis TACH ADAPTOR. This will amplify the signal going into the MSD so it can read it. There is a good diagram I was given, I will see if I can find it again. Here it is:MSD BTM 5462/8910eis install help

10-23-2009, 09:37 AM	#8 (permalink)
MASTERS No Skills Join Date: Oct 2009 Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	THANK YOU SO MUCH DUDE. IM PROBABLY GOING TO GET THE BTM, A GOOD KNOCK SENSOR, AND A WIDEBAND O2 AND GUAGE BEFORE BOOSTING IT AND GO FROM THERE. THAT DIAGRAM IS A BIG HELP. I CANT BELEVE THE STUFF YOU GUYS KNOW.

10-23-2009, 10:02 AM	#9 (permalink)
killermillermr2 Honda Hunter Join Date: Dec 2007 Location: Colorado Posts: 701 Thanks: 22 Thanked 22 Times in 22 Posts iTrader Rating: (6/100% )	Just passing it on. I had to learn it on here myself. Before you commit to the btm, look up SMT-6 or SMT-7. Those will let you control fuel and spark in one box. Better than a BTM and SAFC(as I have now), and if you have a wideband why not tune in you fuel?

10-23-2009, 05:40 PM	#10 (permalink)
MASTERS No Skills Join Date: Oct 2009 Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	OK I WILL LOOK AT THOSE AND GET BACK TO YOU.

10-24-2009, 08:25 PM	#11 (permalink)
David Take a picture trick! Join Date: Jun 2007 Location: Tampa, Fl. Posts: 1,294 Thanks: 111 Thanked 25 Times in 25 Posts My Google Map iTrader Rating: (4/100% )	I THINK YOU LEFT CAPS LOCK ON.

10-30-2009, 01:32 PM	#12 (permalink)
MASTERS No Skills Join Date: Oct 2009 Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	ok I looked at the smt6 and 7, and megasquirting. I think im going to to with the btm 5462 and adapter. thanks for the tip and wiring diagram.

10-30-2009, 02:21 PM	#13 (permalink)
killermillermr2 Honda Hunter Join Date: Dec 2007 Location: Colorado Posts: 701 Thanks: 22 Thanked 22 Times in 22 Posts iTrader Rating: (6/100% )	You are welcome. There is also a 6462 that does the same thing, but is a better model. I am not sure exactly what the differance is, but I think the 6462 has the 6al ignition stuff along with the boost retard feature.