Showstopper
New member
Hi guys
what are your thoughts on running semi's on a 335i?
am i going to break my diff / box?
what are your thoughts on running semi's on a 335i?
am i going to break my diff / box?
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Read the WELCOME ALL BMWFANATICS post.
Semi Slicks on 335i?
- Thread starter Showstopper
- Start date
I'd be cautious about putting semi-slicks on your road car. You have to know clearly what you'd be in for with those tyres. They are hard, wear quickly and take quite a long time to heat up properly before they start delivering increased grip. The protracted time they take to warm up means that they actually have less grip than normal road rubber when they are cold. Forget this just once in adverse conditions, and they will bite you badly.
Another thing that might bug you eventually is their propensity to flick up stones and road debris when they are at full operating temperature. In addition there is a limit to the number of heat cycles you can subject them to before the rubber starts to go off.
Your original question was regarding the gearbox risk etc, but i don't think it's a unacceptably high risk. One thing is for sure; when they are up to temperature and delivering full grip the feeling is fantastic.
Personally I'd spend the money on up-rated anti roll bars. That will give almost the same performance increase with better bang for your buck in terms of longevity.
Another thing that might bug you eventually is their propensity to flick up stones and road debris when they are at full operating temperature. In addition there is a limit to the number of heat cycles you can subject them to before the rubber starts to go off.
Your original question was regarding the gearbox risk etc, but i don't think it's a unacceptably high risk. One thing is for sure; when they are up to temperature and delivering full grip the feeling is fantastic.
Personally I'd spend the money on up-rated anti roll bars. That will give almost the same performance increase with better bang for your buck in terms of longevity.
Stig46t
Member
A semi grips better than any road tyre at any temperature , and you won't break your diff unless you constantly launch your car like a plonker ...
A semi has better wet grip than any road tyre .
The bad thing about semi's on the road is that they are incredibly noisy . Sounds like you've run wheel bearings , resonation sounds like an old bmx tyre .
And I don't know about the other brands, but the only road legal Bridgestone is the RE55 , RE11 not allowed on the road
A semi has better wet grip than any road tyre .
The bad thing about semi's on the road is that they are incredibly noisy . Sounds like you've run wheel bearings , resonation sounds like an old bmx tyre .
And I don't know about the other brands, but the only road legal Bridgestone is the RE55 , RE11 not allowed on the road
flat-beat-eric
Member
Toyo has a road legal Semi as well
Whats your reason for wanting to run Semis?
Whats your reason for wanting to run Semis?
Showstopper
New member
thanks for the replies guys, but i should have been more clear.
i want to use them purely for 1/4 mile at the tracks (tarlton / odi)
im thinking of slapping semis on my stock 18'' rims as i have 19'' rims as my daily's now.
so when i do some 1/4 mile racing - i will slap on my semi's.
when warming them at the track - am i going to break something?
i want to use them purely for 1/4 mile at the tracks (tarlton / odi)
im thinking of slapping semis on my stock 18'' rims as i have 19'' rims as my daily's now.
so when i do some 1/4 mile racing - i will slap on my semi's.
when warming them at the track - am i going to break something?
Showstopper
New member
KrS24 said:
it will stick like crazy and i have to warm them up properly
will i not break something?
Showstopper
New member
what is the max torque that my stock shafts can handle?
so in other words - if i slap on semi's for race use only and get to the line to warm them up with my 600nm - will i break something?
so in other words - if i slap on semi's for race use only and get to the line to warm them up with my 600nm - will i break something?
bmsportzn135i
///Member
All depends on how much abuse your car has had.
Ive had the 17" hoosier drag radials as well as the 18" Mickey Thompson semis on my car for several events, and i still havent broken any C.Vs nor side shafts.
But thats not to say it wont happen...
Ive had the 17" hoosier drag radials as well as the 18" Mickey Thompson semis on my car for several events, and i still havent broken any C.Vs nor side shafts.
But thats not to say it wont happen...
Showstopper
New member
bmsportzn135i said:
did it decreased your quarter mile times?
by how much?
bmsportzn135i
///Member
Showstopper said:
Difficult to say by how much, but the do definitely help with traction.
Ive read somewhere that a proper set of drag radials will help with a good 1/2 sec if you're battling with traction.
Im sure if i had to launch my car the way i do with stock street tires, i would smoke them for most of the 1/4 mile.
If you're spinning, you ain't winning. :rollsmile:
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