Originally Posted by FPenvy ok here's a few things. and most are aimed at the OP to help him and his AT run a good ET. also some of these
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04-05-2014, 03:06 PM | #1 (permalink) | |
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I see where you are coming from ... I think you've listed all that you are NOT in agreement with ??? Re: The list of sub 2.0's are the who's who of Z drivers ! And most are driving 7AT's...such as yourself...and not 6MT's There is a reason why drag cars are automatics. I didn't say that it was impossible to run 1.9's 60' times on street tires. I was addressing the concerns of a new racer driving a 6MT...in a more or less stock car... Just starting out the learning process of how the car works on the track. I did mean to say (rather than imply), that 'around 2.0' would be more the norm to expect when you are just starting out with a 6MT at the track ... Probably should have been more specific realizing that this thread is inhabited by some serious racers ... such as yourself. Hope that restates my post more clearly... I arrive at the track with about 1/4 tank of gas as you do ... it does help with the traction ... I do, however, take out the spare tire and tools. Some of the Top Z Drivers you listed also lighten their cars considerably. Removing passenger seats and other excess weight including draining the Windshield Washer Fluid reservoir. Their philosophy is that lighter is better...and evidently it pays off...and I do suspect that you don't get to achieve results like this without practice : practice : practice : and maybe a few other learned tricks as well. The 1/4 tank of gas might also help with the wheel hop. Consider yourself fortunate not to have experienced that awful situation. I've had wheel hop with the Bridgestone Potenza's and the Michelin PSII's. Gave up with the street tires and went with the M/T DRII's. Problem solved. Every situation is slightly different ... Track conditions, Temperatures, Drivng Skills, etc ... & Not every car is set up the same. Open Forums such as this can be a learning experience for those listening in on the debates. The debate about how the ET is determined is a good example ... someone learned somthing from that debate for sure. I know I've learned a lot about my 'Z' as a result of participating in these Forums. BTW ... Thanks for those who posted those Time Slips !!! AWESOME Respectfully submitted, Bob Last edited by Z&I; 04-05-2014 at 07:55 PM. |
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04-03-2014, 01:07 PM | #2 (permalink) |
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How to run 1/4 mile, First time
Proper suspension set up will help eliminate wheel hop. Better bushings etc, anything that prevents your toe angle changing during acceleration. Better tires may eliminate hop, as a side affect, but if u increase power (go FI or something) wheel hop will come back unless your suspension is right. I haven't taken my Z to the 1/4, not sure if I will, but most of my recent and upcoming mods are diff, diff bushings, camber and traction arms and new bushings. These will all help u put more usable power to the ground. Now talking specifically for the 1/4, getting the best tires are a must as well.
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04-03-2014, 02:13 PM | #3 (permalink) | |
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What suspension mods have you done ... ? Any specific information would be greatly appreciated. Suspension know how is not my forte tho' I've tried my best to find out about it. My Z is supercharged and I did go with the Mickey Thompsons after experiencing some vicious wheel hop with the Michelin PSII's. I have put in camber arms at the rear and set the camber to zero so far at the advice of other members ...I am only interested in the 1/4 mile. Feel free to steer me in the right direction if I post something that is not expressed correctly...I am here to learn as well as share. Thanks, Bob |
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04-03-2014, 02:56 PM | #4 (permalink) | |
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I'm no suspension guru, I'm learning everything as I go on this car (my first sports car). Anyways I have a lot of plans for this car and I'm just going about it little by little, getting all the basics locked down before I go FI. Right now I've just got swifts and some spl rear camber arms. I want to replace all the mushy stock bushings so I'm going to get some spl traction arms and their rear bushing set. I've got some whiteline diff bushings and I'll get them installed as soon as I get my quaife diff. This is everything I think you would need on the rear, the only other upgrade would be to get coilovers. U want to zero out your toe, and keep it that way. When your car squats down during launch, your toe comes in and you loose some traction causing wheel hop. All the suspension upgrades I mentioned help minimize this. Now u know as much as I do Sent from my iPhone using Tapatalk
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04-05-2014, 10:06 PM | #5 (permalink) | |
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Already have the rear Camber Arms and camber set to '0' Will double check the toe ... I also have the Quaife LSD ... replaced the Nissan LSD with it. The Quaife is a little different than the OEM which I think is a hydraulic LSD .. ? forgot aaarrrggghhh... The Quaife bites more and with the added HP and seems to want to break loose a little bit quicker but really digs in ... not a big problem tho'. Will fwd your info to the shop, especially the bushings ... have talked it over with them regarding the coilovers previously. Bad roads here in NJ...
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04-03-2014, 02:58 PM | #6 (permalink) | |
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04-03-2014, 06:53 PM | #7 (permalink) |
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So far that's my best time (#13 right side) on 20s Axis Wheels...its about 70-75F outside temp. Idk if this helps also but I'm running a New Set of NGK Iridium One Step Colder plugs...still a novice at the track and trying to beat that last yellow light.
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04-03-2014, 09:23 PM | #8 (permalink) |
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How to run 1/4 mile, First time
On the right. Street tires (Michelin pss's) Mods listed in sig Capitol raceway in Maryland. Followed this up with a 12.900 so it was not a fluke. Have that slip as well just no pic on this phone to load.
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04-03-2014, 10:23 PM | #10 (permalink) |
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04-03-2014, 10:56 PM | #12 (permalink) |
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Oh it was so. That thing was a monster. All slicks and a mean sounding turbo.
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