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Tires,gears and turbo oh my

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evil02gt

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Discussion starter · #1 ·
So i finally decided to ditch the centri and stock shortblock. Went with a forged bottom end, MHS heads,cams and still deciding on turbo. My question is what rear gears and tires should I run? I should be around 650-700 rwhp and running it through a 5 speed trans and will be using a n2mb. Rear rims are 15x10 and fronts are 17x4.5. Any help is appreciated.
 
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#2 ·
Depending on what you really want out of the tire (street/strip/both) I would go with a qtp if only strip. Street and strip I would look into the Mt radial pros or the Mt et street r. 275/60s. Gears depend on your overall goal but 3.73 would be fine.
 
Discussion starter · #3 ·
Froush said:
Depending on what you really want out of the tire (street/strip/both) I would go with a qtp if only strip. Street and strip I would look into the Mt radial pros or the Mt et street r. 275/60s. Gears depend on your overall goal but 3.73 would be fine.
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It's no longer a daily driver but will drive it on weekends. I will probably pick up a set of daily wheels and a track setup. At the track I have to run a dot approved radial. I want to get as wide a tire as I can . The 315-35-17s I had on the rear before looked good. I would like to get something at least comparable!
I
 
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#4 ·
Why would you need a dot radial for the track? After living in va for 6 years, I know vmp and colonial don't care about tires as long as they aren't dry rotted or completely gone. Qtps are dot approved but are not a radial. A radial will not be good with a stick car fyi.
 
Discussion starter · #5 ·
Froush said:
Why would you need a dot radial for the track? After living in va for 6 years, I know vmp and colonial don't care about tires as long as they aren't dry rotted or completely gone. Qtps are dot approved but are not a radial. A radial will not be good with a stick car fyi.
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I checked and can run any dot approved tire so the qtp is acceptable. Now what gear and what size tires? I have heard run everything from a 327 gear to a 410.
 
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Discussion starter · #7 ·
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Discussion starter · #9 ·
Froush said:
What are you building your car to make power to or what are you planning on spinning it too?[/QUOTE

I'm looking to make between 650-700 with the turbo setup. I will call MHS and find out what the peak rpm range is for the cams I have
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#10 ·
evil02gt said:
Froush said:
What are you building your car to make power to or what are you planning on spinning it too?[/QUOTE

I'm looking to make between 650-700 with the turbo setup. I will call MHS and find out what the peak rpm range is for the cams I have[/QUOTE


Your cams can go to 7500RPM but you wont need that
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Discussion starter · #11 ·
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#13 ·
Well just basing it off you will be going turbo amd the power you hope to make I am assuming you will spin it to around 7k. I would go 28" tire with 3.73s or 3.90s. If you are planning on more power later, 3.55s wouldn't be bad and may be better if it's more of a street car.
 
#14 ·
Froush said:
...I would go 28" tire with 3.73s or 3.90s. If you are planning on more power later, 3.55s wouldn't be bad and may be better if it's more of a street car.
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If he runs it down the quarter with over 700 hp he'll run out of gear running a 3.90... assuming the car loses a little weight. With a turbo car I'd say 3.55's would be the best bet. Once you get the power, have you ever seen someone say "Hmm, that was fun, now I want to go SLOWER!" No. Even if he doesn't run out of gear with 3.55's on this build, he will the next time he ups the power level.
 
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#15 ·
Froush said:
Well just basing it off you will be going turbo amd the power you hope to make I am assuming you will spin it to around 7k. I would go 28" tire with 3.73s or 3.90s. If you are planning on more power later, 3.55s wouldn't be bad and may be better if it's more of a street car.
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I don't think you'll be happy with the 3.73s or 3.90s on a turbo car.
 
Discussion starter · #16 ·
I will probably go with 3.55s. seems to be the happy medium. With 3.55s would you still run a 28" tire? What exact size would you guys run with a 15x10 rim?
 
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#17 ·
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#18 ·
NickPohlAandP said:
If he runs it down the quarter with over 700 hp he'll run out of gear running a 3.90... assuming the car loses a little weight. With a turbo car I'd say 3.55's would be the best bet. Once you get the power, have you ever seen someone say "Hmm, that was fun, now I want to go SLOWER!" No. Even if he doesn't run out of gear with 3.55's on this build, he will the next time he ups the power level.
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At 700 hp he wouldn't even be close to running out of gear with a 3.90 if he spun it to 7k with a 28" tire. No way he would be trapping 150+. Hell....he wouldnt even run out of gear with a 4.10 with that setup. 700 hp at full weight will trap high 130s
 
#19 ·
I went 410, then 373 then back to 327.
 
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