engineers certificate
Submitted: Wednesday, May 18, 2005 at 15:53
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hound
Does anyone know how much it costs to get an engineers certificate if you use larger size tyres. VicRoads says only 15mm higher in Dia is ok over the largest size tyre used on any model of vehicle you have.
I have a 2005 model hilux. The largest sized tyres used on any model is 255/70 R15 (around 740mm). Even with the 15mm I still can’t legally run 31/10.5 r15 tyres with an engineers certificate.
Anyone have any contact details for someone in
melbourne?
Reply By: Truckster (Vic) - Wednesday, May 18, 2005 at 22:13
Wednesday, May 18, 2005 at 22:13
Depending on the engineer, around $300-700...
People are having issues finding one that will do bigger tires now.
Search the
forum for Kevin Williams. He used to be THE man to see, did my GQ with 6in lift, body lift, bigger tires all in 1 go, but he wont do squat anymore. Dont think he does 4wds at all from what I read on other forums
AnswerID:
111859
Reply By: Tonester - Thursday, May 19, 2005 at 14:04
Thursday, May 19, 2005 at 14:04
I upgraded my 265/70R16 on the prado to a 75 profile and raised springs. Half the tyre diameter increase you are planning but I still went through the hoops and process (rather rigourously too).
I couldn't find an engineer around where I live who cared. The
feedback I got was just to make sure you can still get RWC and insurance.
With
mine, RACV did not care about the tyre height, nor the lift of <50mm. They do care about extra width, however I can't remember the detail as it didn't apply to me. The RWC joint down the road also didn't care about the mods either. So, I just put them on and advised insurance. (the fiasco resulting from getting
the springs done by Bridgestone at the same time is anther story!!)
But as I said,
mine was 1" diameter more, your is 2". Could be different.
ps. are they going to fit?
AnswerID:
111932
Follow Up By: hound - Thursday, May 19, 2005 at 15:14
Thursday, May 19, 2005 at 15:14
Tonester,
Your tyres dont rub on the inner guards at all?
31/10.5 r15 are on at the moment but with large offset rims which rub on full lock, changing to a navara offest to see what that does.
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Follow Up By: Tonester - Thursday, May 19, 2005 at 15:39
Thursday, May 19, 2005 at 15:39
Hi Hound.
Its a 2000 Prado btw. The raised springs was meant to prevent rub, and appears to to a degree. Does rub only a little under compression at near full lock. Full alignment done after the springs/tyres went it, nothing else. I figure it'll grove out the guard over time(!).
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368291
Follow Up By: Truckster (Vic) - Thursday, May 19, 2005 at 23:33
Thursday, May 19, 2005 at 23:33
So, I just put them on and advised insurance
Did you get it engineered in the end?
FollowupID:
368367
Follow Up By: Tonester - Friday, May 20, 2005 at 08:53
Friday, May 20, 2005 at 08:53
Truckster, nope didn't. VicRoads were the only ones who said it was needed, and their own recommended engineers said don't not required just get a RWC. Rather frustrating the whole thing, from looking can hardly tell anything has been done to it. Try and do the right thing and all.
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