Mr2 93 NA 5FSE Troubles

kentsvision · 10-19-2006, 02:10 PM

I have a 5FSE rebuilt. Bigger pistons, cams, injectors, headers, exhaust, air intake. I'm having trouble Idling it. I think It's running a little rich but I'm not sure so I bought an Apexi Super AFC II Controller to solve the problem. I tried to find the Repair manual but there isnt one anywhere around here. I just need the ECU Pinout for the 5FSE. Anyone have it?

Also I should be pushing over 200 in this NA.

Will dyno later.

Mister2.2 · 10-19-2006, 02:36 PM

Try MR2-Tech.com

PETC · 10-19-2006, 04:09 PM

Like I said in the PM's you sent me, idling at 1,000 RPMs, especialy with the mods you have listed, sounds completley normal to me.

Get the AFCII hooked up, work with that a little, then get it on a Dyno IMMEDIATLY.

We're all VERY excited to see the possibility of a 5SFE putting 200 to the ground naturaly aspirated. Also, after you have the dyno results, please post how much it cost you to get it to that point.

You may not know this, but if you could achieve 200 NA HP with a 5SFE, and not have it cost some ungodly ammount of money, you would finaly put a very old argument to bed in the MR2 community, and we'd all be very grateful.

I want to see this happen!

Mister2.2 · 10-19-2006, 06:11 PM

Yes, id like to see the dyno as well. What is your total cost invested so far? Which cams are you running and what are the specs on the pistons? How about your fuel, which injectors and have you upgraded the oil pump?

kentsvision · 10-19-2006, 07:05 PM

Custom Cams, Custom Pistons (3.465) I will Dyno soon but not real soon. I say 3 weeks

PETC · 10-19-2006, 07:14 PM

And how much money do you have invested right now?

kentsvision · 10-19-2006, 07:18 PM

well i aslo got injectors headers. waitin for my exhaust. air intake so... i say a lil over 3 or 4 g's on the engine not including my sound system roll cage verticle doors AFC Controller and thats all i could think of right this moment im sure i left somethign out. BUT there was a lot of hours. My dad is a 20 year mechanic and its his first time on an MR2. Taking the whole engine apart and putting it back together 5 months later cause of the custom pistons and cams

Mister2.2 · 10-19-2006, 07:25 PM

Who did your cams and what are the specs on them? Also what compression ratio? A good full write up with full specs is required.

kentsvision · 10-19-2006, 07:26 PM

im not sure let me ask my dad that when he's off work. i'm still new with cars and this is just a learning experience for me. our next car is a Nissan 300zx Twin Turbo

PETC · 10-19-2006, 08:01 PM

So this is your Dad's car?

kentsvision · 10-19-2006, 08:02 PM

No this is my car. But my dad is helping me. That's all lol

conor · 10-19-2006, 08:06 PM

200 rwhp on a 5SFE? Any headwork? Valvetrain? Higher capacity pump to go with those injectors? And you're tuning it on a SAFC2? o_O

PETC · 10-19-2006, 08:40 PM

Note you he hasn't taken it to a dyno yet...

However... without extensive head work or an EMS/fuel pump I'm having a hard time believing it right now. But we'll see!

With the mods you listed I'd guess you'd be putting down closer to 140-150 RWHP.

kentsvision · 10-19-2006, 08:44 PM

opps forgot about the headwork to... let me get back to you guys about the details

kentsvision · 10-23-2006, 12:28 AM

ok dyno tune this sat. on the 28 haven't talk to my dad about details but its a lot of things we've done to it. so i'm workin onthe list now. i'll get back to you guys about it when saturday or sunday comes around.

mrturrari · 10-23-2006, 04:06 AM

The stock fuel pump is fine for just about any NA 5sfe you could build. It has been tested to safely flow enough fuel up to 235rwhp at the stock pressure.

Like everyone says don't get your hopes up for 200rwhp. It is pretty much impossible to hit that using the stock ECU. There are a few reasons why, the first being the 6300rpm rev limiter. You would need to be producing 167rwtq at 6300rpms to get 200rwhp and that would take not only head work but some very aggressive cams that the stock ECU couldn't idle. Think 272 advertised duration and high lift. Also the headers and intake manifold would have to be tuned to that rpm and you would need to be running high compression pistons to get that kind of efficientcy. Don't get me wrong I believe that a 200rwhp 5sfe is not only possible but will be built in the near future but not without an EMS.

I would be very interested to know what cam profile are you using? What size injectors? Do you have forged pistons? Be very careful with the SAFC if you have much larger injectors because you will have to pull alot of fuel which will in turn advance timing on the stock ECU. Watch for signs of detonation. It will hesitate when the ECU starts pulling timing because the knock sensor is being triggered. If the timing advances too much or it goes too lean the knock sensor will not save your engine.

Here's the 93 ECU pinout:
http://img147.imageshack.us/img147/9...upinoutjd0.jpg

10-19-2006, 02:10 PM	#1 (permalink)
kentsvision KVision Join Date: Oct 2006 Location: Florida Posts: 64 Thanks: 0 Thanked 2 Times in 2 Posts iTrader Rating: (0/0% )	Mr2 93 NA 5FSE Troubles I have a 5FSE rebuilt. Bigger pistons, cams, injectors, headers, exhaust, air intake. I'm having trouble Idling it. I think It's running a little rich but I'm not sure so I bought an Apexi Super AFC II Controller to solve the problem. I tried to find the Repair manual but there isnt one anywhere around here. I just need the ECU Pinout for the 5FSE. Anyone have it? Also I should be pushing over 200 in this NA. Will dyno later.

10-19-2006, 02:36 PM	#2 (permalink)
Mister2.2 Cheese it! Join Date: Feb 2005 Posts: 6,274 Thanks: 108 Thanked 109 Times in 94 Posts Blog Entries: 1 My Google Map iTrader Rating: (3/100% )	Try MR2-Tech.com __________________ --Josh MR2Trader.com Free Accounts to Buy and Sell your MR2 Parts! Ask me about Web Hosting Solutions, starting at $5.95 a month. 'I am at two with nature.' 'Students achieving Oneness will move on to Twoness.'

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

10-19-2006, 04:09 PM	#3 (permalink)
PETC √(176400) Join Date: Nov 2005 Location: Bellingham, WA Posts: 2,414 Thanks: 27 Thanked 53 Times in 45 Posts My Google Map iTrader Rating: (4/100% )	Like I said in the PM's you sent me, idling at 1,000 RPMs, especialy with the mods you have listed, sounds completley normal to me. Get the AFCII hooked up, work with that a little, then get it on a Dyno IMMEDIATLY. We're all VERY excited to see the possibility of a 5SFE putting 200 to the ground naturaly aspirated. Also, after you have the dyno results, please post how much it cost you to get it to that point. You may not know this, but if you could achieve 200 NA HP with a 5SFE, and not have it cost some ungodly ammount of money, you would finaly put a very old argument to bed in the MR2 community, and we'd all be very grateful. I want to see this happen!

10-19-2006, 06:11 PM	#4 (permalink)
Mister2.2 Cheese it! Join Date: Feb 2005 Posts: 6,274 Thanks: 108 Thanked 109 Times in 94 Posts Blog Entries: 1 My Google Map iTrader Rating: (3/100% )	Yes, id like to see the dyno as well. What is your total cost invested so far? Which cams are you running and what are the specs on the pistons? How about your fuel, which injectors and have you upgraded the oil pump?

10-19-2006, 07:05 PM	#5 (permalink)
kentsvision KVision Join Date: Oct 2006 Location: Florida Posts: 64 Thanks: 0 Thanked 2 Times in 2 Posts iTrader Rating: (0/0% )	Custom Cams, Custom Pistons (3.465) I will Dyno soon but not real soon. I say 3 weeks

10-19-2006, 07:14 PM	#6 (permalink)
PETC √(176400) Join Date: Nov 2005 Location: Bellingham, WA Posts: 2,414 Thanks: 27 Thanked 53 Times in 45 Posts My Google Map iTrader Rating: (4/100% )	And how much money do you have invested right now?

10-19-2006, 07:18 PM	#7 (permalink)
kentsvision KVision Join Date: Oct 2006 Location: Florida Posts: 64 Thanks: 0 Thanked 2 Times in 2 Posts iTrader Rating: (0/0% )	well i aslo got injectors headers. waitin for my exhaust. air intake so... i say a lil over 3 or 4 g's on the engine not including my sound system roll cage verticle doors AFC Controller and thats all i could think of right this moment im sure i left somethign out. BUT there was a lot of hours. My dad is a 20 year mechanic and its his first time on an MR2. Taking the whole engine apart and putting it back together 5 months later cause of the custom pistons and cams

10-19-2006, 07:25 PM	#8 (permalink)
Mister2.2 Cheese it! Join Date: Feb 2005 Posts: 6,274 Thanks: 108 Thanked 109 Times in 94 Posts Blog Entries: 1 My Google Map iTrader Rating: (3/100% )	Who did your cams and what are the specs on them? Also what compression ratio? A good full write up with full specs is required.

10-19-2006, 07:26 PM	#9 (permalink)
kentsvision KVision Join Date: Oct 2006 Location: Florida Posts: 64 Thanks: 0 Thanked 2 Times in 2 Posts iTrader Rating: (0/0% )	im not sure let me ask my dad that when he's off work. i'm still new with cars and this is just a learning experience for me. our next car is a Nissan 300zx Twin Turbo

10-19-2006, 08:01 PM	#10 (permalink)
PETC √(176400) Join Date: Nov 2005 Location: Bellingham, WA Posts: 2,414 Thanks: 27 Thanked 53 Times in 45 Posts My Google Map iTrader Rating: (4/100% )	So this is your Dad's car?

10-19-2006, 08:02 PM	#11 (permalink)
kentsvision KVision Join Date: Oct 2006 Location: Florida Posts: 64 Thanks: 0 Thanked 2 Times in 2 Posts iTrader Rating: (0/0% )	No this is my car. But my dad is helping me. That's all lol

10-19-2006, 08:06 PM	#12 (permalink)
conor Lord Anti-Rice Join Date: Feb 2005 Location: Roseville, CA Posts: 942 Thanks: 20 Thanked 27 Times in 25 Posts Blog Entries: 1 My Google Map iTrader Rating: (2/100% )	200 rwhp on a 5SFE? Any headwork? Valvetrain? Higher capacity pump to go with those injectors? And you're tuning it on a SAFC2? o_O

10-19-2006, 08:40 PM	#13 (permalink)
PETC √(176400) Join Date: Nov 2005 Location: Bellingham, WA Posts: 2,414 Thanks: 27 Thanked 53 Times in 45 Posts My Google Map iTrader Rating: (4/100% )	Note you he hasn't taken it to a dyno yet... However... without extensive head work or an EMS/fuel pump I'm having a hard time believing it right now. But we'll see! With the mods you listed I'd guess you'd be putting down closer to 140-150 RWHP.

10-19-2006, 08:44 PM	#14 (permalink)
kentsvision KVision Join Date: Oct 2006 Location: Florida Posts: 64 Thanks: 0 Thanked 2 Times in 2 Posts iTrader Rating: (0/0% )	opps forgot about the headwork to... let me get back to you guys about the details

10-23-2006, 12:28 AM	#15 (permalink)
kentsvision KVision Join Date: Oct 2006 Location: Florida Posts: 64 Thanks: 0 Thanked 2 Times in 2 Posts iTrader Rating: (0/0% )	ok dyno tune this sat. on the 28 haven't talk to my dad about details but its a lot of things we've done to it. so i'm workin onthe list now. i'll get back to you guys about it when saturday or sunday comes around.

10-23-2006, 04:06 AM	#16 (permalink)
mrturrari I <3 my 5sfe Join Date: Mar 2005 Location: Salt Lake City, Utah Posts: 511 Thanks: 2 Thanked 125 Times in 82 Posts iTrader Rating: (0/0% )	The stock fuel pump is fine for just about any NA 5sfe you could build. It has been tested to safely flow enough fuel up to 235rwhp at the stock pressure. Like everyone says don't get your hopes up for 200rwhp. It is pretty much impossible to hit that using the stock ECU. There are a few reasons why, the first being the 6300rpm rev limiter. You would need to be producing 167rwtq at 6300rpms to get 200rwhp and that would take not only head work but some very aggressive cams that the stock ECU couldn't idle. Think 272 advertised duration and high lift. Also the headers and intake manifold would have to be tuned to that rpm and you would need to be running high compression pistons to get that kind of efficientcy. Don't get me wrong I believe that a 200rwhp 5sfe is not only possible but will be built in the near future but not without an EMS. I would be very interested to know what cam profile are you using? What size injectors? Do you have forged pistons? Be very careful with the SAFC if you have much larger injectors because you will have to pull alot of fuel which will in turn advance timing on the stock ECU. Watch for signs of detonation. It will hesitate when the ECU starts pulling timing because the knock sensor is being triggered. If the timing advances too much or it goes too lean the knock sensor will not save your engine. Here's the 93 ECU pinout: http://img147.imageshack.us/img147/9...upinoutjd0.jpg