GQ Rb30 Can i run 33's??

[dansharp]

Got a stock GQ with the RB30 on gas. Wondering with 2 inch suspension lift can i run 33's will i need to change diff ratio's or will this be ok?
Cheers

[NutterGQ]

This has been asked and answred, yes it will run them the diff ratio in the RB30 is the second highest factory set already so don't bother with them, offroad in low range it will be ok for most tracks, on road it will suffer.

[dansharp]

Thanks mate. On road how will it suffer tho?
Ever since i have been a member of this forum the search function has not worked so sorry for asking a question that has been covered but it is either that or sift through 450 pages to try find the answer.

[NutterGQ]

As far as search is concerned when you look for something type for example ... Rb30 and 35s and will and run.... instead of just rb30 on 35s will it run, it narrows down the results heaps.
Otherwise use the google search at the bottom of the search page.

As for your question basically what you will find is around town at speeds up to 80km\h or so it should be fine, once you start pushing 100+ especially if your loaded with camping gear etc the combined weight and win drag starts to make it a struggle, mine on 35s couldn't do more than 80 up a relativley steep hill when loaded, and that was in 3rd gear flat to the floor!

[jessie928]

hi man,

a trick you should do to your RB30 is remove the carby, and you are left with the spacer and the manifold. When you take a look at the spacer you will see its filled with a honeycombe looking stuff with a wire going to it from the side of the spacer.
take the wire off, pull the spacer off the manifold, and proceed to remove all of the honeycomb shit. make sure you trim it up so there is no restriction whatsoever in the spacer form the carby to the manifold.
put it all back together
now you will be very happy wit hthe increased performance, especially with the bigger rubber.
Jes

[simcoe]

i had a gassed rb30 with 33's and done all the usual mods, wasnt the fastest and fuel use suffered once you tried to keep higher legal speeds up
on gas would get 18/20 per 100km all day every day highway or not!
did it do the job-yes
was it fun off road-yes
was it pleasant to drive all day everyday and on trips- nah not really

but everyone like different things

[Red GQ]

Mate I just got 33'' an lift last week and towed the trailer today : it went like a ' DOG ' Not happy will have to look at a doing something so let me know how u go cheers

[chunks]

Bolt the turbo gear on.

[NutterGQ]

hi man,

a trick you should do to your RB30 is remove the carby, and you are left with the spacer and the manifold. When you take a look at the spacer you will see its filled with a honeycombe looking stuff with a wire going to it from the side of the spacer.
take the wire off, pull the spacer off the manifold, and proceed to remove all of the honeycomb shit. make sure you trim it up so there is no restriction whatsoever in the spacer form the carby to the manifold.
put it all back together
now you will be very happy wit hthe increased performance, especially with the bigger rubber.
Jes

True and it does open them up but when on petrol in colder weather can cause problems.