OK, so I can post the slips later. I just wanted to get this out now. Best time 12.13 @ 117 mph. The 60 on that run was a 1.95. Apparently I can't drive. I had to get out of it in first to let the tire/tires grip.

The posi kept lighting up only one tire. Especially into the 2nd gear shift. Since it is an almost new ford traction lock (9 inch), what would be the reason for this?

I swapped a 58mm for the stock one and the car seemed to lose power/torque. I plan to do a test as soon as I can. The openings in the LT1 manifold are only 52mm as of now though. Too bad I bought an 88 and down throttle body and my stock one is for 89 up. Damn throttle cables!

I opened the cutout and the car only gained 1mph. Can anyone think of a reason for this? I was thinking that since I had edelcrap headers and a single 3 inch (not mandrel bent in one place) that the cutout would "crutch" them.

Car is full weight minus the spare with 93 octane gas.

Comments? Lets help me get that mph into the 120s. Thanks!

 

Congrats man! We'll have to go together next time and hit 11's. You already have plenty of MPH for it.

 

Awesome times!! I think why you didn't see a big gain w/ the cutout is because your headers (collectors) are actually the other major restriction that needs to be corrected for you to see a big mph gain. I think Buckeye isn't hindered by his headers as much as you are is because his car peaks a lot lower because of his cam and intake. The TES may actually benefit SR/219/afr combos, which I haven't actually proved, it's just a theory of mine that I think makes sense; that combo is all about make low end tq and midrange hp.

Your times are around the same times my car suppsedly ran, of course the motor dissentegrated before I even got home, let alone before I got to take it to the track. I'm still trying to figure out if the guy I bought it from dumped a lemon on me or what. But anyhow my setup WAS similar to yours. I may not be running the zzx cam if it's wrecked. There's a piece of rod jammed between the cam and the counterweight. Anyway, you car is running good, lets see some 11's. When I get my car together again, I'd love to meet up w/ you and Buckeye in Ohio at a local track, if it's not too far. Cincy is only a couple of hours away from me. I don't meet too many thirdgenners here in central IN.

 

Yeah awesome times. How much of a NOS shot are you running?
You are definitely deep in the 11s with traction.

 

For traction, pull the sway bar and beg borrow or steal tires that are stickier. You should have no problem dropping the 60 down to 1.75-1.70. A strong 406 can generate 1.5 60's.
This should put you solidly into the 11's.

The throttle body probably didn't work because the TPS was not set to spec or too much reversion caused by the mismatch between the tbody and the manifold.

The cutout probably just leaned the motor out too much. A little further tuning should net 2-3mph.

Good luck!

www.geocities.com\dzperf

 

Whoa, congrats! Not that it doesn't already, but that thing is really gonna move when it is all dialed in .

Did you do any changes to the tune when you swapped that TB? How about with the cutout open? What ECM are you running and what are you using to tune it?

p.s. What cam did you end up going with?

 

Your sig says 11.5:1 A/F Ratio? That true? Running a little rich /me thinks.

 

Thanks for the compliments. Anyhow, I had the a/f ratio set to 11.5 or so average and then I changed it to 12.5. No performance changes!!!! No clue.

I tried 40 degrees total timing and it lost 2 mph in the 8th but still went 116 in the 1/4. Since the car was only getting one wheel peel, it was really hard to compare since it was so inconsistent on the launch.

I am NOT running nitrous yet. Soon, if I don't keep breaking stuff.

I did set the TPS to proper spec. I agree that it was something to do with the fact that the LT1 intake has only 52mm holes.

I have a comp cams 240 240 custom hydraulic roller. 1.5 rockers .560 lift. 987 springs. I shift it pretty high at like 6200.

BTW, I am using the tunercat/pocket programmer/ craig moates software. I also use a wideband that logs using craig moates and a special definition file. I checked the airfuel with the cutout open and it didn't change too much.

 

Re: the trac loc, clutch plates, right?

Did you verify thier okay?

Should take 60-70 ft/lbs of tq to spin one wheel to break the "posi" loose.

You'll need to fab a plate that will bolt to your axle hub, with provisions to use your tq wrench on.

I've made several...using 1/4 inch plate, drilling hole to fit the hub (just 3) and welding a nut on it(dead center to the axle)...then use my tq wrench and socket to see how much force is need to break the posi loose.

You need one wheel on the ground, tranny in nuetral.

 

Cool, sticking with the OEM ECM . Is it still MAF or did you go to SD?

So did you have them make a ZZX clone or is it a little different?

I bet the Edelcraps are hurting you even with the cutout open. I recently swapped to SLP 1.75s from those and the change in exhaust note and high RPM breathing was quite evident. The butt-dyno definately felt a little change in performance and the sound changed to a much more throaty one versus the sharp rapping with the TES. And I can shift at ~5700 instead of the previous ~5500. This is with the 355 (siamesed base/SLP runners, much porting). I can only imagine how much those things must be choking off an engine like yours!!! Some of the missing MPH has got to be hiding in the headers, IMO.

 

Well, I would buy some hooker long tubes but that means that I need a custom y pipe to clear the t-56 and spohn x-member. The cam is similar to a zzx cam. Actually it is similar to what a zzx cam specs out at, not what TPIS claims it is.

As far as the edelbrocks, I believe I am the world record holder for mph in the 1/4 with them. lol There might be like 40 hp in some better headers, though.

I am running a speed density system.

I am going to pull the diff and trans as soon as I can to fix them.

BTW, I want to thank Jim, Chuck, and Jake for the help in getting the car ready for the track. I had waaay to much to do and couldn't have done it w/o them.

 

Are Edelbrock headers that bad?

Are Hedman 1 5/8" non-emmisions headers much better? (For a 350)

 

With an engine like Gofaster's, 1 3/4 is the only choice, especially when comparing to edelbrocks. If you wanna know how the TES systems are just take a look at how the tubes get crimped when they meet the collectors. And then look up through the collectors and you'll see what I mean. For any 350 1 5/8's are fine unless you're pushing 500+hp.

 

Damn, you're on the right track! With both tires pulling, traction, and a little more tuning, DEEP 11's would be a breeze!

40*'s is a little too much, 36-38 at WOT would be optimal in your PROM.

Long tube 1 3/4in headers would REALLY help your combo pick up the pace!


Just my $.02

 

I hear ya on the ZZX .

I hear ya on the headers too... I desperately wanted to go LTs with my new engine but it just won't happen without spending some serious money on a Y-pipe and/or modding the floorpan and it still might severely limit ground clearance.... Not an option in my case since I road race (rumble strips strongly resemble curbs when you get right up close to them ). So I went with the SLP shorties for now and I guess I can't complain too much.... I have heard some rumors (from TPIS) that they are looking to make a few small changes to their 4th gen LTs to make them work on thirdgens. Hard to say if it will work though... I bitch at them all the time to get something cooking for us though .

I thought I was doin alright with mine pulling 105 mph with my TES but I guess if you put enough engine in front of them they will go quite a bit faster.....lol.

Sucks about the T56.... wierd too.

Good luck.

 

Gofaster, I just noticed that you are running unmodified 190's and a SD. Have you done major tuning to get your times or did you just tweak a few things here and there? You also now have the right to use your car in the AFR vs brand x heads threads that we always see, since you're making so much hp. That big cam doesn't hurt power either. It sounds like you guys in Ohio know how to put together some badass well-mannered sbcs.

Hey guys, speaking of the zzx cam, I may have one to give away for free! Of course that's if it's ruined since there's a chunk of rod jammed between the precious zzx and the crank. I'll find out soon enough. :lala:

 

Haha, lets just say this chip is quite modded. Yeah, gotta represent here in ohio.

 

Camaro Joe:

What you should do is "Rent" the cam to other TGO members for a price. They could send the cam to Comp Cams and get it computer checked ($15), then have comp grind an identical cam for about 1/2 the price, then send you the cam back, and you send them a deposit. Selling the spec's outright would probably violate some law somewhere, but you're covered doing it this way. I think it's about time cam specs were less of a trade secret.

 

BTW, that ZZX cleaned up quite nicely and still 'doctor-ed' fine .

 

Guys I think my zzx cam is garbage, but I'll know for sure tomorrow. Right now there's half of an Eagle H-beam wedged between one of the lobes and a crank counterweight. When I find out it's junk, I'll gladly send to one of you to do whatever you want with it. I have a Comp custom cam that's 236/236 dur. and .555/.555 lift. Is this close enough to the zzx that I had? I have the valve timing events if you want to compare. I can't find the zzx cam timing events though. My place is a mess.

 

BTW, I already had a zzx into comp cams for a cam doctor analysis.....

 

Hey, gofaster, what are the timing specs on the zzx then?

 

off the top of my head? do a search, it is all posted.