Le3/Le2 H/C track times, Do I have a problem??

[MeanGreen97Z]

Look at it like this.... you picked up nearly 35rwhp on the dyno and found out what the real issue is. Sounds like the dyno did what it was supposed to. I bet you make 385 next go round. BTW, thanks for the deal on those 561 castings... they are soon to be on my car.

[Tricked-Out-Toy]

Originally Posted by MeanGreen97Z

Look at it like this.... you picked up nearly 35rwhp on the dyno and found out what the real issue is. Sounds like the dyno did what it was supposed to. I bet you make 385 next go round. BTW, thanks for the deal on those 561 castings... they are soon to be on my car.

Ya 35 horse is 35 horse, ill take it. you gotta let me know how those heads work for ya. did you get the LE2's or LE3's?

[Tricked-Out-Toy]

Ok so Ive been busy trying to work out the bugs in this setup, you guys have all been really helpfull and Id like you input on the latest runs.

heres the run down of what I was running before to catch everyone up.

first time out with mail order tune stock injectors and stock tb stock fuel pump 3.42,s
----------Run 1---Run 2---Run 3
60' ------2.190---2.243---2.494
1/8 time--8.64----8.61----8.80
1/8 MPH--86.73---87.23---88.26
1/4 time-13.126--13.082--13.300
1/4 MPH-109.75--110.16--109.76

Second time out with mail order, 30# injectors, 58mm tb stock fuel pump
R/T .414
60' 2.185
330 5.620
1/8 8.404
mph 89.23
1000 10.790
1/4 12.808
mph 111.79

Now this was last night and since the run above I installed a 9" with 4.11 gears and MT et's, I still have a mail order since I just swaped out to obd1. also I had a hard time getting into third. I had to "ease" it in there. its only an 1/8 mile track but the air was cool not much humidity. so could my driver error really be accounting for the poor track times? ive been workin out these issues for about a year and im seeing results I just dont know were to look next.

R/T .1760
60' 1.978
330 5.394
1/8 8.233
mph 86.83

I thought my mph would drop more than 4mph going from a 3.42 10 bolt to 4.11s and a 9". maybe I just need to drive with stickys more to get the feel. I know i should be down in the 1.60-1.70 for my 60' but that cant account for my poor mph? We have a guy in our club with a cammed 383 stock head running the same time if not better than me with similar 60's. so any help would be apreciated!

[SS MPSTR]

Something is still up and your car is still not making the power it should be IMO. Practice and getting the feel for where your car wants to leave will lower your 60-foots, but the MPH is of some concern. Your car is clearly faster at the 330-foot mark, but looks like it might be down on power in order to carry out the improvements seen at the short end.

[mdacton]

Looks to me like you should let someone that knows how to drive make a pass......60' is terrible
No offense but get a driver to make a few passes and see what you have.....even at that its only going to help you find your problem........the MPH is very weak you def. have issues somewhere but won't find them without making some good passes

[Tricked-Out-Toy]

Well I would but I have a hard time letting anyone drive my stuff. esspecially with the tranny acting up. out of three runs it would only go into 3 once and that was being gentle. every time I tried to power through it would just shut me down. but its not like my shift werent consistent, my sweet new harland shift light is set at 6500 and I hit it every time.

I just got my autometer wideband and ill be installing that soon so that should tell me more something. I guess ill just keep putting away at it. maybe its in the tune?

[HardcoreRM125]

You ever put your fuel pump in? Maybe now its runing rich since they were adding so much fuel before when you didnt have a pump capable of keeping up with it. Now that you have a strong pump, your actually getting the +10-20% feul they were adding.

[mdacton]

Originally Posted by Tricked-Out-Toy

Well I would but I have a hard time letting anyone drive my stuff. esspecially with the tranny acting up. out of three runs it would only go into 3 once and that was being gentle. every time I tried to power through it would just shut me down. but its not like my shift werent consistent, my sweet new harland shift light is set at 6500 and I hit it every time.

I just got my autometer wideband and ill be installing that soon so that should tell me more something. I guess ill just keep putting away at it. maybe its in the tune?

man its in your 60'....my brother has a stock 93 ford bronco w/351 and it cuts better 60'

You got to leave hard......drop the hammer at 5500+

[HardcoreRM125]

Its not in his 60's cause even when he 60's OK ( The 1.8 or 1.9 ) the MPH was way low in the 8th. Something else is wrong. I mean, yea, you could use some launching practice too, but no one is a track star on their first few times out.

[mdacton]

Originally Posted by HardcoreRM125

Its not in his 60's cause even when he 60's OK ( The 1.8 or 1.9 ) the MPH was way low in the 8th. Something else is wrong. I mean, yea, you could use some launching practice too, but no one is a track star on their first few times out.

I don't see any 1.8 sixty......

I agree it has other problems but without a good pas/dyno sheet what can you do? something is not right for sure

Edit: I just saw this was in a 3rd gen.....make a pass with the car without the airbox on it...just run the MAF wide open...I bet you it picks up

[zx1216]

yeah, that **** sucks, i trapped 114 on stock heads

[Daniel6718]

def somethign wrong man...get a dyno and post up the graph for us to see...along with a/f reading....
ifits making the power it should then its simply your driving skillz(aint tryin to put you down)
if its not making the power then we would know it something with the car....could be something simple like clogged filter or as bad as the cam installed off a tooth? retarding alot of timing..?
do you have a SES light on?

[89385formula]

Couple things come to mind here when sorting through this thread, You posted Density Altitude info for you first runs, but none since. I know you said the weather was cooler, but it would be very helpful to have that info to correct the the track appearances to each other, so we can actually get an idea of the real improvements. So see what you can do on that, and let us know. Second, Keep working on your launch because a high 1.9 should be attainable on street tires...and your barely getting that on some sticky tires. Indication that you need some work driving, Im sure with more practice you will get better. You will lose HP switching to a 9" rear, however I don't believe that you should have lost MPH like that in the 1/8.....the 3.42 to 4.11 gear swap alone should have made the HP loss/MPH loss negligable IMO.

Also I believe mdacton is on to something when he was telling you to make some passes without the airbox. Those 3rd gen airboxes have proven to be very restrictive, even on the TPI engines.

Edit: Did you ever change your fuel pump/filter yet?

[Tricked-Out-Toy]

Ok thanks for the replies guys and Im def going to try without the air lid, I ment to do that the last time but COMPLETLY forgot about it. and yes I did install a new walbro with a digital fuel pressure gauge in the pillar so fuel pressure is not a problem. and the tune was redone by Ion after the fuel pump so all that time and money on the dyno for the obd2 setup wasnt worth crap. I need to just get a couple pulls and ill post those up.

It was literally my first day on the 9" with the tires, (I installed it the day of and drove straight to the track ) Ill get some better runs without the air box and maybe even a data log with any luck we can get this thing were it needs to be! thanks guys my spirits have been renewed

About the weather conditions the track (Music City Raceway) doesnt have the conditions on the time slips so I really have no idea.

BTW, DAMN that 9" makes the car feel heavy! shifting is notchy almost like the clutch never fully disengages. something ill have to get use to.

Just loaded the vid to streetfire give it a few and it should be there my 1/2 shift is great but like I said the 2-3 shift is slow cause I had to ease it in there. http://videos.streetfire.net/video/b...1f00cc9f1b.htm

[Z-RATED94]

You have a 9'' and thats how you launch? Just mess'in with ya. But really, do a decent burnout, stage, 5krpm and let her rip!!!! Your slow 2-3 shift isn't hurting your times as much as that conservative launch is.