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You already are fast Bro, so while testing new ideas might be fun it could turn into more of a science project than a productive exercise. I hope I'm wrong! :cheers: |
That's not what racers do. It's never good enough. Just ask me.:D
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The term "Off season" is blue collar for 'no budget". LOL
We do what we can with what we can scroung. |
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What confuses me.....I look at photos of my car on the track when my Torque Thrusts were on it and my tires look flat on the asphalt and tire wear was even across the fronts. It never pushed either. Once I through on the vette wheels, lower tubular control arm, and changed my alignment settings everything went to ****. So I'm back to square one. I'm honestly hoping that my alignment setting are the contributing factor to the car pushing. May 19th I'll be running at T-Hill again so I'm hoping the recent changes I made will fix the push. Fill me in on what you know about moving the lower control arms |
I have faith in you tracky!!
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Thanks Jerry, a couple more track days and I'll have her figured out :thumbsup:
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There's more than changing the lowers going on there I think. First you took a balanced car and played with it - wider tires, spacers, different alignment, different watts link (roll ceneter) settings. I also think the lowers changed the game from where you were as well. Now you're chasing a ghost - it's not there anymore.
The suspension engineers from Dick Guldstrand on have taken the stock sub and gone as far as they can. The vendors each have their version of what works best. Many won't agree w me, but I think in our segment, Corvette geo gets copied most. This gets you to a wider tire and a better camber curve aka contact patch. I'm no engineer, but I don't think that's gonna happen w the stock sub. You also have not yet experimented w a true coil over set up w your favorite shock angle/spring rate/sway bar. All this needs to be dialed in. There's alot smarter guys on here than me, I'm just just spitballin'... |
My understanding is that the Gulstrand mod allows for more camber gain in compression and also will allow for more caster. Tubular control arms give us more caster and camber but not more camber gain in compression which I'm thinking the Guldstrand mod will pick up.
I'm not clear on what moving the lower control arm would do. If I go through it in my head, raising it and moving it out will give more camber gain but what else? |
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Watts changed your RHC. We have to do the calculations on where you optimum spot will be. Setting up your front end again will allow us to put the front where it needs to be. Right now I suspect your front and rear are fighting each other. We will get there, we need to work together again and get that trust back. Adding a G mod at this time will only complicate things. Baby steps guys, otherwise expect to pay more for something you may not have needed in the first place. |
You're running GW lowers right? Although a fan of their stuff, there's a guy on PT that had a huge proplem w them. He had to change uppers/lowers out to SPCs (Marcus helped him) to get his wheel centered in the well. He also changed his spinde but I don't think that was the problem. IMHO not every vendor's lowers place the spindle/BJ in the same lcoation.
To answer your question, I don't know of any lower that adds caster and most vendors don't advertise their caster/camber changes. |
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I've signed up for May 19th with NASA and July 1st with NCRC. Hopefully you'll make it out there. If not, you know I'll have you on speed dial. |
Someone say Matzo Balls?? :yes:
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2:04.9 today at T-Hill in the 3rd session. Made another adjustment for the 4rth session and car felt even better but I broke my timing chain in the second lap down the straight. Chain broke through the bottom of my billet timing cover and landed on my frame rail. More detail later, I'm beat.
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Hell yes, man! Good runnin:cheers: Same configuration as the old rich prick?
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Good work Gaetano! :thumbsup:
Sorry to hear about the chain. :mad: |
Way to hit your goal.
Sucks on the chain. More power now. :D So you said you'd have the gopro armed this time? |
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I'll look up the chain Jason recommends Gaetano. I distinctly remember him showing my how nicely the gears and chain mesh. |
Yeah I told G earlier that this apparently was his way of showing me the damage a chain can cause.
I checked out my chain today. It looks great. :lol: |
I don't want to hijack this as I think we should concentrate on the positive but I could be debris that broke the chain.(Roller lifter needle)
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Cloyes True-Roller, Jessel belt, or FlashCAR caliber gear drive maybe? |
I only post in jest because I talked to G earlier and he had a good attitude about it all. Could be a broken cam too. Hopefully nothing major.
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great times, glad it wasn't a dramatic failure. Hot oil on the headers and front tires is a recipe for disaster.
I hope the front cam gear bolts didn't shear or come loose. That will mean the block maybe damaged. We got your fix right here. http://img.diytrade.com/cdimg/308142..._midi_bike.jpg see you in the morning. |
Great job on hauling ass :thumbsup: Sorry about the parts failure. Let me know if I can help.
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That's flying G way to go! Hope your problems are minor, keep us posted.
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Seems like I throw money at my car like Confetti.. Confetti made of dead Presidents... I wouldn't have it any other way.. My Wife ? Oh she would rather I not come on these sites...She knows these cars are expensive to build and she would rather buy purses and shoes.. So I got her her dream car as a flash/Bang grenade to stun and confuse her.. Her rims are more expensive than mine, but that didn't help.. |
Thanks guy's, it felt like a great accomplishment to be able to hit my mark and knock 2.5 seconds off of my previous best lap time. The beauty of it all is that I know there's more to be had and I think if I could have completed the last session I would have definitely been in the low 4's or high 3's. I'm still trying to better my entries and exits in turn 1 and 8 but the biggest contribution to my faster times was being able to adjust my rear roll center height. My next goal is to get into the 2:02's on 100 TW tires.
I got to the track about 6:30 a.m and parked over by the Chicca crew. This was a NASA event and I was running in the Time Trials group. My first session out was a wasted session as I only got one hot lap before I heard something dragging underneath my car so I came in to see what it was. My center front spoiler support rod broke free from the spoiler and I was dragging it as it barely held on by the last thread on the bolt that secured to the subframe. That really screwed me because I had nothing to go on as far as making any adjusments for the next session. I still managed a 2:12 and that put me at 32nd on the starting grid for the next session. 2nd session car was pushing mid corner but I still managed a 2:07.6 which bumped me up to 23rd on the starting grid. I adjusted roll center again and took 2 lbs of air out of all 4 tires before the 3rd session. 3rd session is the session I got my 2:04.9. The car felt way more neutral in the early laps but as the tires got hotter I started to lose front grip. I came in after about 5 laps because I knew I wasn't going to get any faster. Jacked the car back up, raised roll center up one more notch and took two mor lbs of air out of front tires. 4th session 1st lap I already new I hit the sweet spot. Car was just the way I liked it, just a hair loose. 2nd lap I was passing cars that were previously running faster than me. I was stoked!! Whipped around turn 15 and it felt like I was going to push my pedal through the floor board and then about 50' feet before the start finish line I heard a big clunk and the first thing I set my eyes on was the rpm gauge as I hear my car shutting down.........it instantly dropped to zero. I passed the K-rail and pulled to the right side. A puff of smoke shot up and it smelt like oil. I sat there until the tow trucks pulled up. I asked them if there was oil on the ground and they said yes. I think to myself,"****". Long story short......timing chain snapped and broke through the bottom of my billet timing cover taking the bottom of the cover with it. |
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