Buying Slicks & Wheels
#1
Buying Slicks & Wheels
So as some of you know I recently finished my LS1/TH400 swap on my Z. I am starting to prep my car for the track in spring and on my long list of things to do is slicks and wheels. Below is a link to the wheels I am going to buy.
http://www.summitracing.com/parts/SUM-571-5866PS/
My car is 322whp right now through the TH400. This winter I am spending the majority of my time lightening the car. I will be doing some additional work such as a fuel cell, differential brace and a 75-100hp wet shot of nitrous. Suspension will remain stock for now. I am also running a 3600rpm stall and no trans brake just yet. Solid motor mounts.
I am not planning on running the nitrous until I get the car dialed in properly. However, I want to make sure that the tires I buy can handle launching with the nitrous off the line but aren't overkill. Below is some information and calculations on my drivetrain.
Specs
1st Gear Ratio: 2.48:1
2nd Gear Ratio: 1.48:1
3rd Gear Ratio: 1.0:1
Final Drive Ratio: 3.538:1
Speed Calculations
Tire Diameter: 27.0"
Redline: 6,000rpm's
1st Gear: 55mph
2nd Gear: 92mph
3rd Gear: 136mph
Tire Diameter: 28.0"
Redline: 6,000rpm's
1st Gear: 57mph
2nd Gear: 95mph
3rd Gear: 141mph
There isn't a huge difference in mph so I am leaning towards the smaller tires. I am looking for slicks that I swap on at the track.
Can anyone recommend a specific tire that would suit my setup? Maybe even a 26" diameter(?).
http://www.summitracing.com/parts/SUM-571-5866PS/
My car is 322whp right now through the TH400. This winter I am spending the majority of my time lightening the car. I will be doing some additional work such as a fuel cell, differential brace and a 75-100hp wet shot of nitrous. Suspension will remain stock for now. I am also running a 3600rpm stall and no trans brake just yet. Solid motor mounts.
I am not planning on running the nitrous until I get the car dialed in properly. However, I want to make sure that the tires I buy can handle launching with the nitrous off the line but aren't overkill. Below is some information and calculations on my drivetrain.
Specs
1st Gear Ratio: 2.48:1
2nd Gear Ratio: 1.48:1
3rd Gear Ratio: 1.0:1
Final Drive Ratio: 3.538:1
Speed Calculations
Tire Diameter: 27.0"
Redline: 6,000rpm's
1st Gear: 55mph
2nd Gear: 92mph
3rd Gear: 136mph
Tire Diameter: 28.0"
Redline: 6,000rpm's
1st Gear: 57mph
2nd Gear: 95mph
3rd Gear: 141mph
There isn't a huge difference in mph so I am leaning towards the smaller tires. I am looking for slicks that I swap on at the track.
Can anyone recommend a specific tire that would suit my setup? Maybe even a 26" diameter(?).
Last edited by Quamen; 11-24-2010 at 08:00 PM.
#2
350Z-holic
iTrader: (25)
I used a 275/50/15 MT DR on the same size wheels....plenty of stick (perhaps too much) at 280/260. Be plenty of tire for you with a good burnout. The 275/60 is also an option, but I wouldn't at your hp level without the giggle gas.
Edit because pics are best...
275/50/15 on stock suspension:
Edit because pics are best...
275/50/15 on stock suspension:
Last edited by 03threefiftyz; 11-24-2010 at 08:05 PM.
#3
Registered User
iTrader: (2)
You did lots of homework. I think this will work out well.
27.0 inch tires. No way will 322 horsepower plus nitrous reach 136 MPH. You will have plenty of room at the top.
http://www.wallaceracing.com/et-hp-mph.php
Did you run numbers for 26.0 inch tires?
ET street or slicks and width. This is generally a class question. If you run in a DOT class than you must run DOT tires. If you run in a 10 inch slick class than maximum tire width is 10.0 inches.
27.0 inch tires. No way will 322 horsepower plus nitrous reach 136 MPH. You will have plenty of room at the top.
http://www.wallaceracing.com/et-hp-mph.php
Did you run numbers for 26.0 inch tires?
ET street or slicks and width. This is generally a class question. If you run in a DOT class than you must run DOT tires. If you run in a 10 inch slick class than maximum tire width is 10.0 inches.
#4
You did lots of homework. I think this will work out well.
27.0 inch tires. No way will 322 horsepower plus nitrous reach 136 MPH. You will have plenty of room at the top.
http://www.wallaceracing.com/et-hp-mph.php
Did you run numbers for 26.0 inch tires?
ET street or slicks and width. This is generally a class question. If you run in a DOT class than you must run DOT tires. If you run in a 10 inch slick class than maximum tire width is 10.0 inches.
27.0 inch tires. No way will 322 horsepower plus nitrous reach 136 MPH. You will have plenty of room at the top.
http://www.wallaceracing.com/et-hp-mph.php
Did you run numbers for 26.0 inch tires?
ET street or slicks and width. This is generally a class question. If you run in a DOT class than you must run DOT tires. If you run in a 10 inch slick class than maximum tire width is 10.0 inches.
Redline: 6,000rpm's
1st Gear: 53mph
2nd Gear: 89mph
3rd Gear: 131mph
I might as well go with a 26" tire since I should be able to run mid tens with that mph through the TH400 (and additional HP of course). I can always raise my redline after I do the valve train in order to adjust my top mph. 26" with a 6800 rpm redline would top out at 149mph which is way more than I need.
I don't really have plans on running in a class. Just "fun racing", so there is no tire requirements.
What about these tires?
http://www.summitracing.com/parts/HOO-18120D06/
http://www.summitracing.com/parts/MTT-3052/
Last edited by Quamen; 11-25-2010 at 07:15 AM.
#5
Registered User
iTrader: (2)
Tire Diameter: 26.0"
Redline: 6,000rpm's
1st Gear: 53mph
2nd Gear: 89mph
3rd Gear: 131mph
I might as well go with a 26" tire since I should be able to run mid tens with that mph through the TH400 (and additional HP of course). I can always raise my redline after I do the valve train in order to adjust my top mph. 26" with a 6800 rpm redline would top out at 149mph which is way more than I need.
I don't really have plans on running in a class. Just "fun racing", so there is no tire requirements.
What about these tires?
http://www.summitracing.com/parts/HOO-18120D06/
http://www.summitracing.com/parts/MTT-3052/
Redline: 6,000rpm's
1st Gear: 53mph
2nd Gear: 89mph
3rd Gear: 131mph
I might as well go with a 26" tire since I should be able to run mid tens with that mph through the TH400 (and additional HP of course). I can always raise my redline after I do the valve train in order to adjust my top mph. 26" with a 6800 rpm redline would top out at 149mph which is way more than I need.
I don't really have plans on running in a class. Just "fun racing", so there is no tire requirements.
What about these tires?
http://www.summitracing.com/parts/HOO-18120D06/
http://www.summitracing.com/parts/MTT-3052/
Either of the slicks that you listed is good. For “fun racing” you may want to have a couple of spare rear axles in the garage.
#7
Cranky FI Owner
iTrader: (14)
The gearing is wayyyy to long in that setup IMO
Ideally you want to be near peak power as you cross the line, from reading those tire diameters you will barely be into 3rd gear and thats no bueno.
Of course the N20 setup will be better, but Id honestly go 26" in your case.
Ideally you want to be near peak power as you cross the line, from reading those tire diameters you will barely be into 3rd gear and thats no bueno.
Of course the N20 setup will be better, but Id honestly go 26" in your case.
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#8
350Z-holic
iTrader: (25)
The gearing is wayyyy to long in that setup IMO
Ideally you want to be near peak power as you cross the line, from reading those tire diameters you will barely be into 3rd gear and thats no bueno.
Of course the N20 setup will be better, but Id honestly go 26" in your case.
Ideally you want to be near peak power as you cross the line, from reading those tire diameters you will barely be into 3rd gear and thats no bueno.
Of course the N20 setup will be better, but Id honestly go 26" in your case.
Also, Quamen, I would go with the 26x10.5. The 8.5/9 is way too narrow.
#9
The gearing is wayyyy to long in that setup IMO
Ideally you want to be near peak power as you cross the line, from reading those tire diameters you will barely be into 3rd gear and thats no bueno.
Of course the N20 setup will be better, but Id honestly go 26" in your case.
Ideally you want to be near peak power as you cross the line, from reading those tire diameters you will barely be into 3rd gear and thats no bueno.
Of course the N20 setup will be better, but Id honestly go 26" in your case.
My peak power is at 5500 rpm's FYI. With the stock gearing, 26" tires and no nitrous I think I will only be 500rpm's short of peak power in 3rd gear based on my calculations assuming I trap 109.
#13
So you think I should run something more like these:
http://www.summitracing.com/parts/MTT-3053/
http://www.summitracing.com/parts/HOO-18131/
I would go with the MT's most likely since they are slightly smaller in diameter.
Any comments on compounds?
http://www.summitracing.com/parts/MTT-3053/
http://www.summitracing.com/parts/HOO-18131/
I would go with the MT's most likely since they are slightly smaller in diameter.
Any comments on compounds?
#15
350Z-holic
iTrader: (25)
With an 8" wheel....26x10.5" Slick. Both hoosier and MT make a a perfect tire for you. It is personal brand preference. We don't have a particularly large drag racing community....if you want some additional opinions I would look at some other platform websites. Good Luck.
#16
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Hate to say it bud but those rims from summit really blow a$$. Although they are cheap for another 40 bucks per wheel you can get welds.They are a solid rims (which you can for sure notice when you look at the wieght). I had a set (of the summit rims)for my frontrunners and practically gave them away to get rid of them. But anyways I run 9.5 weld magnums in the rear. the spec of the rim are 15x 9.5 with 5.5 backspace. The tires i run are 275 50 15's. I want to say i run around a 26.8 diam. Anyways hope this helps. Talk soon mike
#17
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Hate to say it bud but those rims from summit really blow a$$. Although they are cheap for another 40 bucks per wheel you can get welds.They are a solid rims (which you can for sure notice when you look at the wieght). I had a set (of the summit rims)for my frontrunners and practically gave them away to get rid of them. But anyways I run 9.5 weld magnums in the rear. the spec of the rim are 15x 9.5 with 5.5 backspace. The tires i run are 275 50 15's. I want to say i run around a 26.8 diam. Anyways hope this helps. Talk soon mike
Look sick though!
#18
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I never heard welds going for cheap but he said like another 40 bucks? Ima check em out... I too have an interest in this....
Last edited by 350zion; 12-11-2010 at 06:56 PM.
#20
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I didnt say that weld magnums are anywhere near cheap guys. What i was saying is that the summit style wheel pictured at the top of this thread (which is identical looking to a weld wheel) is a solid rim. Welds are a 2 pice and some time 3 piece constructed wheel. And for 40$-60$ more you can get the real draglights. I had them before the magnums and made the mistake of powdercoating them black (stealth) but in turn it looked like i had 4 spares on the car. Hope this helps guys. Tried to find the weight comparison for the rims but no dice later mike
http://www.summitracing.com/parts/SUM-521-5166PS25/
vs
http://www.summitracing.com/parts/WLD-90-510350/
http://www.summitracing.com/parts/SUM-521-5166PS25/
vs
http://www.summitracing.com/parts/WLD-90-510350/