#1: Bigger Wheels = Loss of Speed??? Author: willb101, Location: nottsPosted: Tue Jun 07, 2011 6:46 am ---- Hi
Sticking some Vortexs on my 1.4 8v in the next couple of days but it came with 14" steelies and when i last had 17's on it sloooooowed it down loads. So ive heard your meant to have some sort of alteration on the gearbox to stop this happening when get bigger wheels. is this sort of thing expensive and would it work?
cheers
#2: Re: Bigger Wheels = Loss of Speed??? Author: Big_Rich180, Posted: Tue Jun 07, 2011 6:53 am ----
willb101 wrote:
Hi
Sticking some Vortexs on my 1.4 8v in the next couple of days but it came with 14" steelies and when i last had 17's on it sloooooowed it down loads. So ive heard your meant to have some sort of alteration on the gearbox to stop this happening when get bigger wheels. is this sort of thing expensive and would it work?
cheers
I doubt anything to do with your gear box will be cheap, I also dont think it would be a simple thing to do.
#3: Re: Bigger Wheels = Loss of Speed??? Author: spud_gti, Location: NottinghamPosted: Tue Jun 07, 2011 6:53 am ---- suppose you could mod the box.... while your there swap the drive shafts aswel!
#4: Re: Bigger Wheels = Loss of Speed??? Author: Lewis, Location: Isle Of WightPosted: Tue Jun 07, 2011 6:56 am ---- wont maker it slower, but it will make its acceleration worse... nothing cheap you can do about it
#5: Re: Bigger Wheels = Loss of Speed??? Author: Big_Rich180, Posted: Tue Jun 07, 2011 6:57 am ----
spud_gti wrote:
suppose you could mod the box.... while your there swap the drive shafts aswel!
Mod it with what??
#6: Re: Bigger Wheels = Loss of Speed??? Author: CD-B3, Location: Salisbury / New ForestPosted: Tue Jun 07, 2011 7:00 am ----
Big_Rich180 wrote:
spud_gti wrote:
suppose you could mod the box.... while your there swap the drive shafts aswel!
Mod it with what??
A bigger engine
#7: Re: Bigger Wheels = Loss of Speed??? Author: Big_Rich180, Posted: Tue Jun 07, 2011 7:03 am ----
CD-530d wrote:
Big_Rich180 wrote:
spud_gti wrote:
suppose you could mod the box.... while your there swap the drive shafts aswel!
Mod it with what??
A bigger engine
That would sort it
Not one that eats aux belts though
#8: Re: Bigger Wheels = Loss of Speed??? Author: Mrs_Howey, Location: WorthingPosted: Tue Jun 07, 2011 7:07 am ---- My 1.4 came with steelies on and i put 17inch wheels on and hasn't made a difference at all
#9: Re: Bigger Wheels = Loss of Speed??? Author: spud_gti, Location: NottinghamPosted: Tue Jun 07, 2011 7:09 am ---- mod it with a speed stripe for added 0-60 times for 206s fitted with 17s.....
is a gti box the same as a 1.1 box then??
#10: Re: Bigger Wheels = Loss of Speed??? Author: CD-B3, Location: Salisbury / New ForestPosted: Tue Jun 07, 2011 7:11 am ----
spud_gti wrote:
mod it with a speed stripe for added 0-60 times for 206s fitted with 17s.....
is a gti box the same as a 1.1 box then??
No. Think a 1.4 or 1.6 fits though.
Wouldn't be much point adding a 'bigger' gearbox onto a smaller engined car though, usually the gears are shorter on the smaller engine. Last edited by CD-B3 on Tue Jun 07, 2011 7:12 am; edited 1 time in total
#11: Re: Bigger Wheels = Loss of Speed??? Author: DanPug206, Location: BirminghamPosted: Tue Jun 07, 2011 7:11 am ---- my car came on 14" steels, I've now got 16" nimrods. only side affect I was told is the speedo is out but something pathetically small.
#12: Re: Bigger Wheels = Loss of Speed??? Author: Big_Rich180, Posted: Tue Jun 07, 2011 7:12 am ----
spud_gti wrote:
mod it with a speed stripe for added 0-60 times for 206s fitted with 17s.....
is a gti box the same as a 1.1 box then??
Is that a joke?
#13: Re: Bigger Wheels = Loss of Speed??? Author: DeadEyePaul, Location: Rugby,WarwickshirePosted: Tue Jun 07, 2011 7:12 am ---- Vortex wheels are heavier than the original steelies which will
Make your gear box work harder but as long as you don't rag your car you should be alright
#14: Re: Bigger Wheels = Loss of Speed??? Author: Seb, Location: Under your bedPosted: Tue Jun 07, 2011 7:16 am ---- It won't accelerate as quick and it will put a little more stress on the gearbox, but not by a huge deal.
#15: Re: Bigger Wheels = Loss of Speed??? Author: Rob2859, Location: HalifaxPosted: Tue Jun 07, 2011 8:15 am ----
CD-530d wrote:
spud_gti wrote:
mod it with a speed stripe for added 0-60 times for 206s fitted with 17s.....
is a gti box the same as a 1.1 box then??
No. Think a 1.4 or 1.6 fits though.
Wouldn't be much point adding a 'bigger' gearbox onto a smaller engined car though, usually the gears are shorter on the smaller engine.
Someone told me to 1.4 had shorter ratios than the 1.1.
Bigger wheels higher the gearing. You may have lost some acceleration but gained slightly on top speed.
The only thing you could do is put lower profile tyres on when you go to change it to make the overall size smaller.
#16: Re: Bigger Wheels = Loss of Speed??? Author: doughboy5, Location: devon(weekends) nr cambridge(in the week)Posted: Tue Jun 07, 2011 8:48 am ---- low profile tyres. obviously the lower you go the closer it will be to your old wheel size.
#17: Re: Bigger Wheels = Loss of Speed??? Author: Buggy, Location: Somewhere in North WalesPosted: Tue Jun 07, 2011 11:18 am ---- Nice little tool for checking options:
#18: Re: Bigger Wheels = Loss of Speed??? Author: Lee, Location: EnglandPosted: Tue Jun 07, 2011 11:51 am ---- Just add nos. The girls will think your cool, and you might get laid.
Or they might think your a p***k with a little willy.
#19: Re: Bigger Wheels = Loss of Speed??? Author: willb101, Location: nottsPosted: Tue Jun 07, 2011 11:56 am ---- Cheers for the advice
#20: Re: Bigger Wheels = Loss of Speed??? Author: Coolspot, Location: East SussexPosted: Tue Jun 07, 2011 12:38 pm ---- I thought that i was loosing speed from the 17" i have fitted i beleive the car has 15" steel in the garage. What i found using my Sat Nav was the speed is set faster that actual and putting bigger wheels now means the speed it says actually is the speed i am doing.
When we go past a matrix board at just over 30 it the pug it will flash up< in any other car with standard wheels we can do just about 35 before its activated but the satnav is alway saying we are going past it at 31mph
#21: Re: Bigger Wheels = Loss of Speed??? Author: Edward, Location: In the garagePosted: Tue Jun 07, 2011 1:40 pm ----
Rob2859 wrote:
Bigger wheels higher the gearing. You may have lost some acceleration but gained slightly on top speed.
You won't gain a higher top speed because it won't be at peak power at top speed even as standard.
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but it came with 14" steelies and when i last had 17's on it sloooooowed it down loads. So ive heard your meant to have some sort of alteration on the gearbox to stop this happening when get bigger wheels. is this sort of thing expensive and would it work? 
