car_fixer

matt dont worry bout it theres other things to worry about so not everybody like the hood...better than some ive seen way up north lol

mw66nova

iTrader: (13)

i like it...and i know it's going to be totally functional and is going to help.

the air is looking to be pretty good tomorrow night....

84firebird383

where did you get that scoop? I want one

Shagwell

I've seen half of a 5-gallon bucket pop-riveted to a hood before, and they recently posted a craigslist add on YB with a truck that had half a 55-gallon drum welded on........







We need track times dammit!

brandoz28

iTrader: (1)

oof, not a huge fan of that hood....but to each their own, i think my favorite of any hood you've had on that car was the old fiberglass crossfire hood

TB2

iTrader: (1)

Hood doesn't look bad. I have a very similar trans setup. I wish I had the low first gear though. Good Luck at the track.

mw66nova

iTrader: (13)

ok, first things first, i must state that the weight of the car went up between the steel hood and the th400, i added 135lbs from when i made my 11.26 pass with the powerglide. the 11.26 was at 3400' DA.

first pass was garbage, foot braked it, it stumbled badly as i tried to just feather into it. accidently overshot 2nd and went right into 3rd. total throw-away pass...12.02 @ 115

second and third passees were in the 11.5 range. decided to do a set of plugs. made a fourth pass with the new plugs and pulled the plugs. holy crap were they white. added some fuel at a tune of 3 jet sizes in the back. picked up a tenth. pulled plugs, no change. added 4 jet sizes in front...11.23@ 121mph...back in the game. added 2 more jet sizes to the front, 11.20 @ 121.8mph. sweet. two new bests back to back at a heavier than ever race weight. 11.20 pass was at 2187' DA, so the air was considerably better, though not the best DA's we'll see before the season ends.

sixties still suck though. best 60' was a 1.635 on my 11.20 pass. i would think that this kinda combo would want to 60' in the upper 1.4x range. i didn't play with launch rpm too much and only made two passes off the transbrake (both of which were slower) since i was worried about the fuel tune so much, i wanted to try to duplicate the variables each run. i'm going to get the car in the air this weekend and go through it with a fine tooth combo to see if i can see anything that would cause the 60's to slow down so much. the car went 1.56 60' with the baby ls1 and a vig3600 stall speed converter and 4l60e trans..not sure why it's soo much slower now...

brandoz28

iTrader: (1)

have you ever checked your pinion angle at least for shiggles? i know you can't adjust it on your setup, but at least then you'd know if it was in the ball park.

mw66nova

iTrader: (13)

nope, but i'll be sure to do that and post my findings. i'm going to really go over everything and see where i'm missing the link between my great traps speeds and my terrible 60'.s

mw66nova

iTrader: (13)

after scrutinizing the vid, i think the car is doing to much up-down motion than forward motion. the car needs A) more gear to help keep the front up, B) more power to keep the front up, C) some suspenion adjustment to get the car to go up slower and out faster. i'm going to try C first, then go from there. B won't happen for a while till i can get a carb built for it. A won't happen till i get B taken care of.

i think that with the way the car is setup, the 3.06:1 first gear of the 4l60e was helping keep the front end up through the power band. when i went to the glide with a 1.82:1 first gear, it simply wasn't enough gear to get the front end up at all. now with the 2.48:1 first gear, it's enough to get the front to come up, but not enough to keep it up. so changes will need to be made.

anyone think my logic is flawed?

vids are currently on my facebook. i'll stick them on youtube later tonight for you to see them so you guys can help scrutinize too.

xpndbl3

iTrader: (5)

we're not facebook friends

Don't worry my car doesn't pull the nose up much with the ls based motor compared to the old one, even though this runs faster.

Fast 383

iTrader: (2)

Where where you launching the car? Off a 2 step or at 4500? Did you melt the tires, go against the converter and hang on? What RPM did you cross the traps? Did you see where the RPM fell back on the shifts?

I think a few more runs and you'll get to be where you want. 1.4's is a bit optimistic but I feel low to mid 1.5's is right.

mw66nova

iTrader: (13)

foot braking at 3000rpm. i was having some tuning issues so i made several passes back to back with the same launch technique till the fuel curve was hammered down a bit better. once i got that down, they closed the staging lanes and i was pretty bummed that i didn't get a chance to make a pass on the tbrake.

crossed the traps at ~6500rpm...looks like 9% slippage? pretty reasonalbe.

i didn't see where the rpms were falling to during a shift...i really wished i had a playback tach.

ZONES89RS

iTrader: (2)

So, you are not going to try flashing the converter on green? Might help, might not do anything at all, but you are right for the gear ratios in the trans, allot of people notice the disappointment of the launch losing the nice 3.06 first gear of the 700/4L60.

mw66nova

iTrader: (13)

it's a bad quality cell phone vid, but you can see what's going on:

http://www.youtube.com/watch?v=GlqE8_Zmtp0

brandoz28

iTrader: (1)

are you still running the 275 radials?

mw66nova

iTrader: (13)

yup, 275/60 mt's.

Shagwell

I'll try to catch the vid sometime when I'm home.

It's coming around though. For sure need to play with the launch; either getting it on the brake and flashing it, or possibly going up against it on the brake. - If all else fails, hit it with 150........

brandoz28

iTrader: (1)

its amazing how much that 150 will fix...

mw66nova

iTrader: (13)

you guys know as much as i've taked about nitrous in the past, that i'll never do it. i like the NA stuff too much. if i can get these 60's down to a bottom 1.5 range, the car will go 10.9's

here's another vid, again sorry about the quality, but it's a solid vid of what the car is doing:

http://www.youtube.com/watch?v=UsSk6RhqBuI

Fast 383

iTrader: (2)

Kind of looks like its comming out hard? But I have no sound sO i can't hear if there's any issues.

I have a funny feeling that some more Testing and possibly launching it right off the brake will get where you want.

mw66nova

iTrader: (13)

i'll be playing with launch rpm next time i go out. these ambient temps are out of control right now, so i'll be holding off a few weeks yet.

so your saying flashing it from idle, or really low rpm speed would be better?

Shagwell

Hard to view well here at work, but it does appear like it might be rebounding/unloading a bit after the initial hit. - What shocks/struts are you running?

mw66nova

iTrader: (13)

wore out stock front struts, rears are compeition engineering three way adjustables. to be honest i'm not sure what they're set on either. i'm going to check them tonight. would going with a fresh set of stock fronts be beneficial? i don't have enough coin to get a high dollar strut before going back out....maybe over the winter....

92 CaMaRo Rs

Watched the vid, beautiful car man. Very fast i liked it alot.

TB2

iTrader: (1)

Hey Matt, looks like you may be fighting some of the same susp problems I am. Are you sure your not spinning at all? Videos too poor to tell. Launches alot like mine. I notice in the second vid that it looks like the left rear is raising. Your front comes up good, but drops just as fast. Are you preloading the sway bar at all?

mw66nova

iTrader: (13)

no preload yet. the car leaves fairly straight, no spin that i can tell. i've kinda decided a better torque arm would do this car alot of good.

xpndbl3

iTrader: (5)

don't you have the jegs adjustable torque arm? if so you're still a lot slower in the 60' than those of us running one, something else is off sir.

mw66nova

iTrader: (13)

i have a non-adjustable version.

xpndbl3

iTrader: (5)

your pinion angle wrong or something?

mw66nova

iTrader: (13)

thinking more of the IC not being in the right spot. i need to do some more measuring, obviously.

1BADRZ28

iTrader: (2)

I think the car leaves fine but there isn't any resistence to keep the front up planting the rear tires. Those wore out struts just let the car come down. I'd like to see that front end carry a bit further out before setlling With those shocks it will be tough to keep the front end from coming down. It settles way too fast. If you look at my sig, my car has left like that since it ran 11.50's. I tried every combination of suspension change to puill the tires higher on the launch. Mostly for show. But realistically my car only went 1.55 60's when it ran 10.70's NA.On the juice it went 1.40. If I remember reading you had a 3500 converter. That is way to low. I'd like to see a minium of 4500rpm to 5k That will take the 60' down a bit. I know that isn't optimal for the street but a converter can make or break a combo for sure.

I envy the third gens that can do huge wheelies on stock suspension. I have never been able to attain that.

mw66nova

iTrader: (13)

you read wrong, i have a 4500 stall speed TSI 9" converter i do however, wonder about the location of your control arms. are they still in the stock location or do you have lca rb's?

i checked the rear shocks. they were in the midd setting, which is 40/60. i put them to 50/50. i hope i went the right way. i also have a 30/70 setting.

should i grab a set of cheap 90/10 fronts to see if they would help any?

zz17iroc

iTrader: (4)

Hey Matt, sorry I missed you friday I got called back into work by my CSM at 7:15 right when I was getting in my car to hit the track. And all he needed was a copy of who reported to Drill Sergeant school this week. But when he calls I have to come running, I'm a Soldier 24/7.

From my experience with my 90/10 lakewoods put me into low 1.50's consistently. And yes come off idle and allow your converter to flash that way without loading it, my car always performs it's best when I launch with that technique. I only load it when I spray out of the hole. And I only have a ATI 3500. Plus having 90/10's will prevent the front end from coming down to fast from what I can tell. I love mine! I hope we can link up next time.

Fast 383

iTrader: (2)

My first runs out with my car only netted 1.60 60ft's also. That was with a 3200 stall converter. The car only ran 11.30's @122 than down to 11.0's @ 124 with 1.59. Same thing you have going on.

All I did was get back to the track and work at it. When I finnally melted the tires and launched like I wanted to break it I got the results that the car was capable of.

Get back to the track and test. It will get into the 1.5's and you will go in the tens. My advice was to take the chip out and put the pedal to the floor on the brake. Leave at 4500 with traction and the slip will be more attractive.

I have worn out 90/10's from the 90's. 50/50 in the rear that are rusted out and purchased prior to 1998. The suspension was completely stock with all dry rotted bushings on everything.
If the power is there than the car is going to go tens. Just test and tune.

Shagwell

Put it on the brake and let it eat.

1BADRZ28

iTrader: (2)

This.

brandoz28

iTrader: (1)

fast 383 that's pretty impressive!!!


can't wait to see that car make some more hits matt, she'll get down there, and if nothing else, throw a plate on it and really tear it up hehehe

xpndbl3

iTrader: (5)

you can mod the jegster torque arm mounting bracket for a few more holes to change the IC, also I'm running with my lowered car the LCA in the middle hole, not the bottom. It works best here, looks like those worn out struts pop up then sag right back down, I'd be curious if limiting the extension a bit would keep weight on the tires longer, otherwise if some parts store cheapies would help out over what you got going on now. Buddy has a similar setup to yours with gabriel $23 struts up front and it leaves alright on a budget.

mw66nova

iTrader: (13)

i'm going to put chains up front to limit travel. i also think that going with a fresh set of stuts might help...i can get them for really cheap.

my car is about the same ride height as yours i think. my lca's are in the middle hole. they work better there for my car too.

brandoz28

iTrader: (1)

i have those same ones on my IROC and they work pretty well, but the other car has 90/10's and they work pretty well too. the car does pop up fast with the 90/10's, and driving on the street with those is a little different, the front comes up REALLY easy

mw66nova

iTrader: (13)

ok, so which would you say works better?

brandoz28

iTrader: (1)

its a little hard to tell because of the power difference between the little 305 tpi, and the vortec 350, but the car reacts similarly to yours with the 90/10's, v6 springs, STOCK vortec 350 with a performer intake, and hedman longtubes, th350 with a 3500 stall, and 4.10's out back with a 275/50 drag radial.


with your added power i would thing that it'd help quite a bit in keeping the weight on the back a little longer. for the money though, you could try a set of cheapo parts store units.

mw66nova

iTrader: (13)

i'm going to see if the boss will let me swing a set of 90/10's

xpndbl3

iTrader: (5)

i have 90/10s on mine with no complaints, although it still doesn't pick up the nose much, just pushes the car forward, no big wheelies here. Heck on a footbrake I don't think it daylights the tires much if at all.

brandoz28

iTrader: (1)

i would, mine pops the front up a lot like yours with no power to carry, but it doesn't come all the way down, stays somewhat nose up all the way

Shagwell

Personally, I'm not a big fan of 90/10's. They keep the front up to much/to long. I preffer a tighter strut with a softer spring.

I've got monroe gas-matics on the front of the camaro, no lie.

mw66nova

iTrader: (13)

ugh...too many theories! i may have access to a brand new set of monroe matics that wouldn't cost me a dime to try...

xpndbl3

iTrader: (5)

with 2" of suspension travel how much does it really matter on your car though?

xpndbl3

iTrader: (5)

free is good, put them on