LE2 Dyno. What's Wrong??
LE2 Dyno. What's Wrong?? Here is the first dyno run without any tuning except turning the injectors down.
Here is the best dyno of the day.
And here is the last dyno of the day. I'm not sure what the spike is.
I also remember him saying that adding fuel was actually causing me to lose power. That's probably why the AF ratio is where it is. Okay, post your opinions. What's wrong with my car? I should have well over 400rwhp with my mods.
Here is the best dyno of the day.
And here is the last dyno of the day. I'm not sure what the spike is.
I also remember him saying that adding fuel was actually causing me to lose power. That's probably why the AF ratio is where it is. Okay, post your opinions. What's wrong with my car? I should have well over 400rwhp with my mods.
Last edited by yotaman96; Jul 25, 2006 at 08:30 PM.
Originally Posted by SmokedOutZ28
Did you install the cam the way lloyd wanted it installed?
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TECH Enthusiast
Joined: May 2005
Posts: 669
Likes: 0
From: Charlotte, NC
your AF ratio is way off. They should have had it at low 13's to high 12's by the time you were done with the dyno tune. Assuming everything else is nominal, the tune changes should net you a little more power.
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Originally Posted by HBHRacing
your AF ratio is way off. They should have had it at low 13's to high 12's by the time you were done with the dyno tune. Assuming everything else is nominal, the tune changes should net you a little more power.
TECH Enthusiast
Joined: May 2005
Posts: 669
Likes: 0
From: Charlotte, NC
yes, lower number = richer. If they cant tune you for optimal power in the correct ratio, either they have a problem with the tune, or there is an underlying condition. It wouldn't be uncommon for each motor to be a little off and like a little more, or a little less fuel, but 14.1:1 is way in the wrong direction.
Originally Posted by TwoFast4Lv
DAMN! Did you pay for that tune? On that Dyno? Might want to find a better shop?
Originally Posted by HBHRacing
yes, lower number = richer. If they cant tune you for optimal power in the correct ratio, either they have a problem with the tune, or there is an underlying condition. It wouldn't be uncommon for each motor to be a little off and like a little more, or a little less fuel, but 14.1:1 is way in the wrong direction.
TECH Enthusiast
Joined: May 2005
Posts: 669
Likes: 0
From: Charlotte, NC
thats might be your "underlying problem".
Either way, 14.1 is no good for PE mode. Not just for performance, but for safety. It's just far too lean. Thats why stock you hit in the 11's, it's safer.
Either way, 14.1 is no good for PE mode. Not just for performance, but for safety. It's just far too lean. Thats why stock you hit in the 11's, it's safer.
I made 400 rwhp and 365 rwtq. I forgot to degree the cam though, my fault. I was expecting something in the 410-415 rwhp range, but I guess not.
The knocking might be coming fom your RR's. My friends were louder than a diesel. He called the company and they sent him out new ones.
The knocking might be coming fom your RR's. My friends were louder than a diesel. He called the company and they sent him out new ones.
Well, I haven't done a compression check yet, but I'm pretty sure I have a major shortblock problem. We started the car tonight and let it run for a few minutes. Then we took the temp of the header primaries and cylinder #8 was showing about 150-200 degrees cooler than the rest. This find along with the knocking pretty much assures me there is a big problem. If that cylinder isn't firing properly, I guess that would explain the dyno being so low. I don't know a lot about the way things work, but I also was thinking that could be why I was losing power when the tuner was adding fuel. It wasn't buring properly. It wasn't knocking when we dynoed the car, but maybe pushing it to 6500rpm a few times finally made the problem noticeable.
I would like to thank Lloyd for trying to help me and he has been great the whole time dealing with him.
I would like to thank Lloyd for trying to help me and he has been great the whole time dealing with him.
TECH Enthusiast
Joined: May 2005
Posts: 669
Likes: 0
From: Charlotte, NC
Don't jump to motor rebuild just yet. I would really advise that you yank the valve cover off that side and look at the valve train. Maybe you dumped a rocker or have a valve issue on that cyl. That would also explain the noise, and the cold temps due to non combustion.
Maybe it's simple, maybe not. But I would really start there first, considering thats the area you were just in while doing the install.
Maybe it's simple, maybe not. But I would really start there first, considering thats the area you were just in while doing the install.
