I really need some help!
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On The Tree
Joined: Dec 2001
Posts: 186
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From: San Diego, CA, USA
I really need some help! Went to the local track tonight(1/8 mile). Just installed the line lock...so I am thinking I should some good 60's. Well they were not all that bad, my best being a 2.0. The main problem is everytime I would start off I would spin a little then let off then get right back into it. On every run at about 4000rpm my car would stumble. Like hitting the Rev Limiter. I have the Alky injection to come on at around 4 to 5 pounds of boost. After I get in 2nd and third I have no problems taking it up to 6100-6200rpm.
Does anyone have any ideas? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
Thanks Jason
<small>[ December 06, 2002, 11:45 PM: Message edited by: superchargedZ ]</small>
Does anyone have any ideas? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
Thanks Jason
<small>[ December 06, 2002, 11:45 PM: Message edited by: superchargedZ ]</small>
Re: I really need some help! To clarify, you only have this stumble at 4k in first gear at WOT? Does the car just pull thru it like a rev limit or do you have to play w/ the throttle? I'm not an FI guy yet, and I have not heard of this problem, sorry. But the ttt and the clarification might get you noticed and help. Good-Luck.
Charlie.
Charlie.
Thread Starter
On The Tree
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From: San Diego, CA, USA
Re: I really need some help! </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by CAT3:
<strong>To clarify, you only have this stumble at 4k in first gear at WOT? Does the car just pull thru it like a rev limit or do you have to play w/ the throttle? I'm not an FI guy yet, and I have not heard of this problem, sorry. But the ttt and the clarification might get you noticed and help. Good-Luck.
Charlie.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Yes, only in first gear. Whenever it happened, I just backed off the throttle and shifted into second gear. Thanks.
<strong>To clarify, you only have this stumble at 4k in first gear at WOT? Does the car just pull thru it like a rev limit or do you have to play w/ the throttle? I'm not an FI guy yet, and I have not heard of this problem, sorry. But the ttt and the clarification might get you noticed and help. Good-Luck.
Charlie.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Yes, only in first gear. Whenever it happened, I just backed off the throttle and shifted into second gear. Thanks.
On The Tree
Joined: Feb 2002
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From: Ann Arbor, MI
Re: I really need some help! What kind of tire are you running? with a 2.0 I assume nitto's? if so, you probably are hitting the rev limiter in 1st.
The factory tach is so slow, that without a shiftlight its hard to know when to shift in 2nd. especially with wheel spin.
And the hp you should be making is only going to run it right to redline. My car is the same on nitto drags in 1st at 8psi. get on the gas, it spins to the revlimiter in 1st, tach is way behind.
or if you are on a tire the clutch is slipping in 1st and its hitting the rev limiter. get out and do some autotap runs and see what the speed vs mph is when it cuts out, plus try and see what your mph is when you have to let off (if you cant get autotap.)
The factory tach is so slow, that without a shiftlight its hard to know when to shift in 2nd. especially with wheel spin.
And the hp you should be making is only going to run it right to redline. My car is the same on nitto drags in 1st at 8psi. get on the gas, it spins to the revlimiter in 1st, tach is way behind.
or if you are on a tire the clutch is slipping in 1st and its hitting the rev limiter. get out and do some autotap runs and see what the speed vs mph is when it cuts out, plus try and see what your mph is when you have to let off (if you cant get autotap.)
Thread Starter
On The Tree
Joined: Dec 2001
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From: San Diego, CA, USA
Re: I really need some help! </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by rod442:
<strong>What kind of tire are you running? with a 2.0 I assume nitto's? if so, you probably are hitting the rev limiter in 1st.
The factory tach is so slow, that without a shiftlight its hard to know when to shift in 2nd. especially with wheel spin.
And the hp you should be making is only going to run it right to redline. My car is the same on nitto drags in 1st at 8psi. get on the gas, it spins to the revlimiter in 1st, tach is way behind.
or if you are on a tire the clutch is slipping in 1st and its hitting the rev limiter. get out and do some autotap runs and see what the speed vs mph is when it cuts out, plus try and see what your mph is when you have to let off (if you cant get autotap.)</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I am running BFG's DR. Can the factory tach be that slow? I have Auto Tap, but forgot to bring it. <img border="0" title="" alt="[Mad]" src="gr_images/icons/mad.gif" />
I will do a few a-tap runs today and see what happens.
Thanks
<strong>What kind of tire are you running? with a 2.0 I assume nitto's? if so, you probably are hitting the rev limiter in 1st.
The factory tach is so slow, that without a shiftlight its hard to know when to shift in 2nd. especially with wheel spin.
And the hp you should be making is only going to run it right to redline. My car is the same on nitto drags in 1st at 8psi. get on the gas, it spins to the revlimiter in 1st, tach is way behind.
or if you are on a tire the clutch is slipping in 1st and its hitting the rev limiter. get out and do some autotap runs and see what the speed vs mph is when it cuts out, plus try and see what your mph is when you have to let off (if you cant get autotap.)</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I am running BFG's DR. Can the factory tach be that slow? I have Auto Tap, but forgot to bring it. <img border="0" title="" alt="[Mad]" src="gr_images/icons/mad.gif" />
I will do a few a-tap runs today and see what happens.
Thanks
On The Tree
Joined: Feb 2002
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From: Ann Arbor, MI
Re: I really need some help! with the kind of power you're making, the car is going to spin the rpm's that much faster when it breaks traction. I found with my car that even when near stock, it would hit the rev limiter in 1st at an indicated 5500 rpm. yes the factory tach's can be very unresponsive, especially when the tires come unglued.
I mean, sometime when I get on it, and the nitto's break loose in 1st, it will IMMEDIATLY be on the limiter, even though it might only be showing 3-4000 rpm.
I mean, sometime when I get on it, and the nitto's break loose in 1st, it will IMMEDIATLY be on the limiter, even though it might only be showing 3-4000 rpm.
Thread Starter
On The Tree
Joined: Dec 2001
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From: San Diego, CA, USA
Re: I really need some help! </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by rod442:
<strong>with the kind of power you're making, the car is going to spin the rpm's that much faster when it breaks traction. I found with my car that even when near stock, it would hit the rev limiter in 1st at an indicated 5500 rpm. yes the factory tach's can be very unresponsive, especially when the tires come unglued.
I mean, sometime when I get on it, and the nitto's break loose in 1st, it will IMMEDIATLY be on the limiter, even though it might only be showing 3-4000 rpm.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">My last dyno was 544RWHP 488RWTQ.
I will do a couple of test run's just easing into it and try not letting the tires break loose, hopefully if they don't break loose the tach will go to 6000rpm.
Jason
<small>[ December 08, 2002, 10:00 AM: Message edited by: superchargedZ ]</small>
<strong>with the kind of power you're making, the car is going to spin the rpm's that much faster when it breaks traction. I found with my car that even when near stock, it would hit the rev limiter in 1st at an indicated 5500 rpm. yes the factory tach's can be very unresponsive, especially when the tires come unglued.
I mean, sometime when I get on it, and the nitto's break loose in 1st, it will IMMEDIATLY be on the limiter, even though it might only be showing 3-4000 rpm.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">My last dyno was 544RWHP 488RWTQ.
I will do a couple of test run's just easing into it and try not letting the tires break loose, hopefully if they don't break loose the tach will go to 6000rpm.
Jason
<small>[ December 08, 2002, 10:00 AM: Message edited by: superchargedZ ]</small>
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From: Centrifugal City
Re: I really need some help! 1st gear has the most load I believe. You tend to detonate more in 1st and 2nd. Maybe you need to pull some timing out of 1st? Dunno if you can do it by gear or it has to be by rpm.
Where is your timing and detonation on those runs in 1st?
Where is your timing and detonation on those runs in 1st?
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Verdad Gallardo Thread Starter
On The Tree
Joined: Dec 2001
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From: San Diego, CA, USA
Re: I really need some help! </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by MelloYellow:
<strong>1st gear has the most load I believe. You tend to detonate more in 1st and 2nd. Maybe you need to pull some timing out of 1st? Dunno if you can do it by gear or it has to be by rpm.
Where is your timing and detonation on those runs in 1st?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I just looked at my edit file...I don't know where to look to see where the timing is in first?
Where is NoGo when you need him? <img border="0" alt="[hail]" title="" src="graemlins/gr_hail.gif" />
<strong>1st gear has the most load I believe. You tend to detonate more in 1st and 2nd. Maybe you need to pull some timing out of 1st? Dunno if you can do it by gear or it has to be by rpm.
Where is your timing and detonation on those runs in 1st?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I just looked at my edit file...I don't know where to look to see where the timing is in first?
Where is NoGo when you need him? <img border="0" alt="[hail]" title="" src="graemlins/gr_hail.gif" />
Thread Starter
On The Tree
Joined: Dec 2001
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From: San Diego, CA, USA
Re: I really need some help! </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Cool28:
<strong>you didnt have traction control on did ya?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">No, it was off. That would have funny if I had it on.
<strong>you didnt have traction control on did ya?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">No, it was off. That would have funny if I had it on.