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That sucks about the motor. How much nitrous off the line are you hitting it with? Also what kind of conveter do you use in your car? Is you car driveable on street for cruising?

160 direct port shot this weekend, and we are also looking to see if the AEM failed in controlling it correctly (it might have not pulled timing like it was supposed to). The stall is a precision stall for a 2g, the car also has a 2g auto in it.
 
160 direct port shot this weekend, and we are also looking to see if the AEM failed in controlling it correctly (it might have not pulled timing like it was supposed to). The stall is a precision stall for a 2g, the car also has a 2g auto in it.

I'm not trying to be a dick and i'm only asking as I don't know. How do you get the 2g tranny to work in your car? Also can you drive you car on the street if you choose confortably?
 
Thanks for all of the comments everyone, little update...

So it turns out, we didnt burn up a valve but actually melted #1 piston. No other damage that we can see really. The head was fine and the bore looks ok aside from a little debris around the top of the cylinder, nothing a bead hone wont fix. This is one of our cheap blocks so we are going to throw another piston in there and let it rip. We have a few things we are going to try to get the AEM to work but if we see any issues Im sure it will be up for sale in no time. turboglenn, thanks for al your suggestions and your PM, I am talking to Darren about all of it and if we make a change it might be to one of the haltech units. Time will tell...

Rest assured though, we are not done for this year and plans for next year are looking even better! Darren has all but confirmed we will be traveling to approx 17 IFO events and are gonna shoot for the overall championship again for the 3rd time! It sure would be nice if we could pick up some sponsorships! ;)

I'm not trying to be a dick and i'm only asking as I don't know. How do you get the 2g tranny to work in your car? Also can you drive you car on the street if you choose confortably?


There is not much street car left in there (no working headlights or blinkers, wipers, etc) but it is tagged and insured (love oklahoma!) and does get driven on the steet for tuning from time to time. Biggest reason it doesnt see much street time is the fact the car no longer has an alternator. We run a 16V setup. As for the 2G trans, its a little bit of work on the trans mount, same with the axles, and the rest for the most part is easy.
 
The fact that you only melted one piston is of concern to me. I would be looking into the fuel system as well. It could be that there was an injector malfunction or fuel . Usually when you have an issue that is timing related it tends to get more than just one piston unless you are just extremely lucky.
 
What are these Borg Warner clutches you speak of?
 
The fact that you only melted one piston is of concern to me. I would be looking into the fuel system as well. It could be that there was an injector malfunction or fuel . Usually when you have an issue that is timing related it tends to get more than just one piston unless you are just extremely lucky.

This was our first concern and we actually just completely redid the entire fuel system. The only thing we are still iffy about is our injectors and the only concern there is that they were getting too much fuel pressure but we corrected that with our new regulator. We are only running 40 base pressure so it shouldnt be an issue. If we find that it is still the problem the 160's are getting yanked out and some Morans will be going in.:cool:
 
This was our first concern and we actually just completely redid the entire fuel system. The only thing we are still iffy about is our injectors and the only concern there is that they were getting too much fuel pressure but we corrected that with our new regulator. We are only running 40 base pressure so it shouldnt be an issue. If we find that it is still the problem the 160's are getting yanked out and some Morans will be going in.:cool:

Moran's 160's are BAD ASS. Snatched out the Big Stuff do to customer service and installed a FAST. Used the 160's in a Turbo LS (Stroked 6.0 408 c.i. LS based motor using a GT4788. 920 at the wheels through a TH400 and J.W. convertor on a set of STOCK 6.0 heads using comp springs lock n retainers.). I believe if you do find the injectors to be the issue you will be more than happy with the Moran set.

On another note I would be curious to know what the fuel pump voltage was throughout the run. Have ya'll ohm'ed out the injector harness to make sure there isn't an issue in it as well? Just a few thoughts... :hmm:
 
well, not that it probably will make a difference and i'm sur eyou're already aware but the #1 cylinder usually needs it's fuel trimmed up a few percent because it tends to run leaner than the rest due to manifold design. The guy i got my new turbo from broke two pistons (cracked) at the wrist pin area due to detonation from a bad tune he got on a local dyno. After two pistons i started tuning it and teaching him how to tune and he hasn't had a problem since. He was pushing 672hp before the first piston let go, 2nd one let go on the same tune/same boost but on the street instead of the rollers

I trim my #1 up about 2.3% (just used plug readings to get this dialed in) and i trim the #2 up by 1.3%. I could probably pull a percent or two fdrom the number 4 but i figure instead of looking for that last drip of power i'd leave it as is for a safety margin. I know these are minimal changes but they show up on the plugs when i do a plug-chop and take readings, now they all pretty much look alike, and although doing plug readins on e85 is a little difficult it can be done
 
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Moran's 160's are BAD ASS. Snatched out the Big Stuff do to customer service and installed a FAST. Used the 160's in a Turbo LS (Stroked 6.0 408 c.i. LS based motor using a GT4788. 920 at the wheels through a TH400 and J.W. convertor on a set of STOCK 6.0 heads using comp springs lock n retainers.). I believe if you do find the injectors to be the issue you will be more than happy with the Moran set.

On another note I would be curious to know what the fuel pump voltage was throughout the run. Have ya'll ohm'ed out the injector harness to make sure there isn't an issue in it as well? Just a few thoughts... :hmm:

This car runs a mechanical style fuel pump, no volts here! LOL. We did test the injector harness to make sure it was not an issue and didnt find anything there either.:hmm:


well, not that it probably will make a difference and i'm sur eyou're already aware but the #1 cylinder usually needs it's fuel trimmed up a few percent because it tends to run leaner than the rest due to manifold design. The guy i got my new turbo from broke two pistons (cracked) at the wrist pin area due to detonation from a bad tune he got on a local dyno. After two pistons i started tuning it and teaching him how to tune and he hasn't had a problem since. He was pushing 672hp before the first piston let go, 2nd one let go on the same tune/same boost but on the street instead of the rollers

I trim my #1 up about 2.3% (just used plug readings to get this dialed in) and i trim the #2 up by 1.3%. I could probably pull a percent or two fdrom the number 4 but i figure instead of looking for that last drip of power i'd leave it as is for a safety margin. I know these are minimal changes but they show up on the plugs when i do a plug-chop and take readings, now they all pretty much look alike, and although doing plug readins on e85 is a little difficult it can be done

I wont lie and say that we have done this, I know that our tuner is very good at what he does and hopefully does compensate for this. I will check with him and see if this is a practice he does. If not I will certainly recommend it. :thumb:
 
Mechanical pump? That's interesting, I didn't realize the Mitsu guys ran em. Would love to see pics sometime if ya feel like posting some. Good luck with your problem. I hope it isn't anything too serious/exspensive. Please keep us posted. Take care. :D
 
sucks to hear about the motor. I seen the car at IFO in Montgomery, AL (fall) I think 09? The second time Darren won the series over all points.

Another Auto DSM that got me onto the auto craze. My Buddy and me a few months later drove up to KY and got my auto DSM. After Darrens car broke at that IFO even we helped ya'll get it up on the trailor, sucked we didn't get to see a good pass that day. Darren told us then that he wasn't really worried about it since he was so far ahead in the points he already had the series in the bag LOL.
 
Mechanical pump? That's interesting, I didn't realize the Mitsu guys ran em. Would love to see pics sometime if ya feel like posting some. Good luck with your problem. I hope it isn't anything too serious/exspensive. Please keep us posted. Take care. :D

The first picture is with our methanol motor, hence the no IC, second picture is from this previous race with the E85 setup.

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The first picture is with our methanol motor, hence the no IC, second picture is from this previous race with the E85 setup.

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With that mech fuel pump and that regulator how low can you turn down your base pressure?

I find it interesting how this car passes tech with the fuel pressure regulator on the fire wall. Also no 1.25 min pipe around the fuel cell for being outside the frame rail.
 
With that mech fuel pump and that regulator how low can you turn down your base pressure?

I find it interesting how this car passes tech with the fuel pressure regulator on the fire wall. Also no 1.25 min pipe around the fuel cell for being outside the frame rail.

With the new regulator we have it down to 40 base pressure right now, not sure we have tried any lower.

As for the mounting of the cell and regulator, we knew the rule for the regulator on the firewall but also have never seen that enforced at any track we have been to, and we have been to ALOT of different tracks. As for the cell, we didnt know that rule till after we built the front end that way. So far we have not been asked about it or anything so we are going to leave it. If it becomes a problem we will change it...:thumb:
 
WOW!!! Coming from a world of turbocharged, blown and fogged Grand Nationals, Mustangs and LS1's I am ALWAYS amazed at the engineering the DSM crowd puts into these cars. That looks great. I have a few questions but will have to post them later. :D
 
With the new regulator we have it down to 40 base pressure right now, not sure we have tried any lower.

As for the mounting of the cell and regulator, we knew the rule for the regulator on the firewall but also have never seen that enforced at any track we have been to, and we have been to ALOT of different tracks. As for the cell, we didnt know that rule till after we built the front end that way. So far we have not been asked about it or anything so we are going to leave it. If it becomes a problem we will change it...:thumb:

I agree on not messing with stuff till your called out on it, for us out here they would just ask you to leave, I got booted long time age for rubber valve stems, 2 weekends ago I have fray on my window net and they almost wouldnt let me run, the net is brand new. Good luck on your guys quest, looking forward to seeing more from your camp.
 
I agree on not messing with stuff till your called out on it, for us out here they would just ask you to leave, I got booted long time age for rubber valve stems, 2 weekends ago I have fray on my window net and they almost wouldnt let me run, the net is brand new. Good luck on your guys quest, looking forward to seeing more from your camp.

Lucky for us our local track knows us very well and when we come to tech in they ask no questions LOL. Hell half the time they never even pop the hood unless they want to see what we have changed. Sounds like the tracks up there are STRICT! WTF
 
Car is looking good guys! Sorry to see your still having engine problems. When I come across odd things I always send the ECU and injectors in for testing to be safe. I'm not knocking the tuner but I'd be interested in seeing a log or the map to see if something looks funny. I honestly have never experienced any problems with any AEM myself or friends have owned except one time I accidentally back fed power through the main relay somehow and burnt the main trace in the AEM. On a side note I'd ditch the direct port and go to a wet shot whereas I've sen clogged jets burn up a single cylinder before. Of course this is all my personal opinions and I know I'm no pro.

P.S. tell Darren I said hi! If you remember I borrowed his nitrous bottle at KC IFO in 2008!

Jason
 
Car is looking good guys! Sorry to see your still having engine problems. When I come across odd things I always send the ECU and injectors in for testing to be safe. I'm not knocking the tuner but I'd be interested in seeing a log or the map to see if something looks funny. I honestly have never experienced any problems with any AEM myself or friends have owned except one time I accidentally back fed power through the main relay somehow and burnt the main trace in the AEM. On a side note I'd ditch the direct port and go to a wet shot whereas I've sen clogged jets burn up a single cylinder before. Of course this is all my personal opinions and I know I'm no pro.

P.S. tell Darren I said hi! If you remember I borrowed his nitrous bottle at KC IFO in 2008!

Jason

Ill see if I can get a log to post up, we have sent the EMS back to AEM and they said it all checked out fine. We also had the injectors flow tested and there was one that flows slightly more than the others and we always make sure to put that injector in the #1 runner. This cars fuel system is total overkill (10 1600's and the mechanical pump and NOW the proper regulator) and should have no issues with fuel supply.

The issues we are looking for with the AEM is that it doesnt hold timing. The logs will always show what the AEM thinks the timing is but it may actually be floating around. We always set the timing with a timing light but never really have used the light to see if its holding where its supposed to when the RPMs are anywhere but idle. :ohdamn: Some say this is correctable with a CTS (read crank trigger sensor) that has more points to monitor timing than the factory cam angle sensor but we wont know till we get the motor back together to test that theory. If you dig deep enough you can find where people have had issues with this.
 
Yeah sounds like there should be plenty of fuel LOL. I have to ask this whereas I know people that have tuned several cars and never did this but did you make sure the timing was sync'd in the AEM options where you lock the timing then adjust it until the crank pulley marks match the EMS setting? I'm sure you did but it never hurts to ask whereas I'm just trying to think of things.

On a side note on the FPR, I was told when I teched in that in our "sideways" engine application it can be mounted on the firewall as long as it is 12" away from the bellhousing which is obviously towards the drivers side.
 
Yeah sounds like there should be plenty of fuel LOL. I have to ask this whereas I know people that have tuned several cars and never did this but did you make sure the timing was sync'd in the AEM options where you lock the timing then adjust it until the crank pulley marks match the EMS setting? I'm sure you did but it never hurts to ask whereas I'm just trying to think of things.

On a side note on the FPR, I was told when I teched in that in our "sideways" engine application it can be mounted on the firewall as long as it is 12" away from the bellhousing which is obviously towards the drivers side.

No worries, any obscure ideas are welcome here. That is something we always make sure to do though. At this point we are just guessing that it was a timing issue and untill we get the car running again we cant really test the theory.

Interesting about the FPR. Anyone know the actual rule on this? This is the first I have heard of the way you said it. Would be good new if its true!
 
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