Might be a case of too many mods in a short time span. I just got my deep dish bullit wheels and tires installed (pics to come shortly, way too dirty right now) and installed my Jet TB spacer. Same night, probably should have done one at a time. Anyway, I've noticed now that I can't really break the tires loose in 2nd gear, but with 285's on the back and me being concerned about paying $240 per tire, that doesn't surprise me.

Anyway, in preperation for my new Jet TB spacer and the MPG gain claims that some have, I've been driving a bit on the cautious side keeping track of my current MPG and seeing just how high I can get it. So I've been easing into gears, driving pretty lame pretty much everywhere. I got the TB spacer installed last night and went for a drive and it felt pretty good. Drove to work and back today, no CEL, no adverse affects, pretty successful mod.

Well I stop by to see an old co-worker of mine today to show him the new rims, he hadn't been on a drive since I installed my 4:10 gears, so we went out to bang some gears. So being a little cautious about my new tires I decided not truly "nail it" out of first, but I gave it a little gas, certainly more than I would in normal driving conditions. It pins you back good the first 5 feet then just FALLS on it's face for a second, then picks right back up again. "Hmmm, that's odd" I thought to myself. So I get to a stoplight and decide to jam my foot down from a stop. Same thing. Wow, now I'm getting mad. After that, the car just screams, through every gear, all the way to redline, but that off idle thing is really bugging me. I tried it a few more times on the way home with the same result.

Then I got to thinking that I didn't disconnect the battery when I installed the TB spacer, like the directions say. So I disconnected it for about 10 minutes, then went back out for a drive. Pretty much the same thing. So here's the conditions:

From a dead stop, just let out the clutch while dropping your foot to the floor on the gas. My car will push you back in your seat for about 5 feet, feel like the engine completely cuts out, then opens up and goes like a bat out of heck. T/C is on, A/C is on, car is going straight ahead.

Now I don't know if I'm just forgetting how to drive or what, but I don't ever remember having to rev the car up to 2k or so just to get it to take off at a good clip from a dead stop, but it sure seems like I have to do that now. I'm 99.9999999999% sure that I've just shredded the stock tires from a stop under these same conditions.

So my question to you folks is...Would someone mind testing their car under these same conditions? I'd really be interested to hear some feedback from you. And I do mean a test, not a "well I didn't drive my car but I know for a fact that mine doesn't do that". I thought I knew for a fact that my car didn't either, but now I'm not so sure. Your assistance is GREATLY appreciated.

Sean

 

Allllllll-righty then. Hmmm, I may have forgotten how to drive.

I just went back out to try it with the T/C and A/C off. Had the windows down, and could actually hear the tires spin a bit before it fell on it's face. Hmmm, you know that kind of sounds like I just am not giving it enough gas. So I tried it a few more times just like I had been, and it was doing the same thing. Then I tried it by giving it more gas before I let the clutch completely out, and it just clipped right along.

You know, I hate to admit that I may just have forgotten how to drive a stick, but that may be the case here. I'll try more tomorrow, but right now my suspicions center around the driver not allowing the car to get enough gas as the clutch is completely disengaged. You know, that whole hand - eye coordination thing.

Anyone care to confirm that I somehow reverted to driving like an idiot?

Sean

 

With 285's and 4.10's you're going to have to be around 1800 to floor her out of the hole. I think that's what you are asking?


Paul

 

It's not that you forgot Sean, it's because you now have a new situation on your hands. You're going to require a little more juice to get those meats movin. There's a significant difference in the rotational mass of 235/55/17's and 285/40/18's plus the additional weight in the new 18" rims as well.

 

Okay, you could disconnect the battery to reset the learning process for the mass air and your driving style.

I can actually say that the throttle body should increase your torque output, very noticable when under WOT. When I used my nitrous again at the strip my torque converter locked up due to too much power flowing through it for my canned tune. The engine reved higher too.

It may take a while, like 50 miles, to completely relearn your style. During that time things could feel very different.

-Dan

 

Maybe this is a dumb question, but are you certain you put the TBS on in the right direction? And is it tight (no air leaks)?

It sure sounds like TCS kicking in, but you said you had it off...

 

TB Spacer is definitely tight and facing the correct way (part number stamping facing towards the radiator), no air leaks. The car runs really strong, like others pointed out, the car is just a completely different animal right now. The tremendous difference in size, tread patch and weight of the tires/rims has definitely made the car feel different. I noticed that immediately after I got the tires and rims installed.

I got the same effect with the T/C on or off, so for now I'm definitely leaning towards the completely different driving dynamics of the car. Maybe if anyone ever gets another Arizona car cruise together (hint hint Sixty Six ) I can have someone else drive it to confirm with me.

Thanks for everyone's responses. If anyone else has any thoughts, please chime in. I would definitely feel alot better if others agreed with me that the difference with the tires and rims would throw me off, I'd at least not feel like an idiot who forgot how to drive a stick shift. :bang:

Thanks again everyone!

Sean

 

How many times have I said where those announcements take place. (hint hint Sean ) There's one this Saturday, Prescott Picnic, Hike, whatever.....

A little place called "Roundups".

Hope you can make it on such short notice.

 

Are you kidding? Have you seen my name on here? az-OU-fan? OU vs. Texas this Saturday!!! It's not that I don't like you that much, I just have a better offer!

OK OK, I'll start checking more regularly on that "other site". I lurk but never post, maybe I should change my strategy.

Sean

 

You can LURK all you want and still find out when we're runnin. We've had people show up that we had no idea were comin, or who they were. It's all good Sean, just keep your eyes peeled, we do SOMETHING roughly once a month.

 

take off the tb spacer to see if it goes away,sounds like a tune issue.

 

TC is a real stinker on this car, if i down shift on the freeway and gun it with TC on my car does the same thing < falls on its face then goes, with out TC it just goes, always leave the TC off if you are going to drive aggresivly

 

I think it's your wheels. your new tire/rim combo is about 5-6 more lbs. heavier each wheel than the stock wheel/tire combo..wheels are heavier and those 285's are heavier..increase in rotational mass...slower off the line and slower 1/4mile time...but you shouldn't really get off the line and then it hesitate..it just should be a slower overall acceleration..the description you describe just sounds like your tcs is activating...maybe yours is broken and it won't actually turn off?