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Engineering - Rough costs, and requirements? NSW
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Engineering - Rough costs, and requirements? NSW
Hey all, I'm looking to get a 4-5" lift on a 105 cruiser, and 315/75R16 tyres (35")
Im thinking it might be a good idea to get it engineered! So im just wondering if anyone can give me an idea on what is a reasonable cost.
I've had 2 other cars engineered in the past (engine conversion in a TA22, and a turbo on a Torana) both were around the $600 mark. Would i be right in assuming engineering costs have sky-rocketed now?
Also, how much difficulty would i have with the above modifications?
Thanks
Mike
Im thinking it might be a good idea to get it engineered! So im just wondering if anyone can give me an idea on what is a reasonable cost.
I've had 2 other cars engineered in the past (engine conversion in a TA22, and a turbo on a Torana) both were around the $600 mark. Would i be right in assuming engineering costs have sky-rocketed now?
Also, how much difficulty would i have with the above modifications?
Thanks
Mike
Prices vary depending on which engineer and what exactly you need passed. Ask them.
I' ve recently paid $660 for a rebody on a patrol, 4 inch, 35's and turbo- pretty normal stuff.
Once it starts getting exotic the engineer has to a lot more work, and take more responsibility. Prices go up accordingly.
Some engineers have a schedule of charges- X amount for each area requiring certification. Then you know what your up for.
Most I've had to pay is $3600.
The guys I've used have always wanted to know what the plan was upfront, then not handed over any paperwork untill the car was totally finished and in a roadworthy state - mudflaps, accurate speedo, full exhaust etc.
They'll want to check heights etc, rim width, track, vin numbers, rego details, noise levels etc.
I' ve recently paid $660 for a rebody on a patrol, 4 inch, 35's and turbo- pretty normal stuff.
Once it starts getting exotic the engineer has to a lot more work, and take more responsibility. Prices go up accordingly.
Some engineers have a schedule of charges- X amount for each area requiring certification. Then you know what your up for.
Most I've had to pay is $3600.
The guys I've used have always wanted to know what the plan was upfront, then not handed over any paperwork untill the car was totally finished and in a roadworthy state - mudflaps, accurate speedo, full exhaust etc.
They'll want to check heights etc, rim width, track, vin numbers, rego details, noise levels etc.
Re: Engineering - Rough costs, and requirements? NSW
PM Athol off here..mike_nofx wrote:Hey all, I'm looking to get a 4-5" lift on a 105 cruiser, and 315/75R16 tyres (35")
But Im not sure your gonna be happy with the answer for what you wanna engineer..
because they are illegal*udm wrote:Athol doesnt certify 35"
however 315/75-16 which is nominally 34 and a half inches, is legal.
other things to be aware of are that a MAXIMUM of 6" over factory listed max height is allowed - a 5" plus 315's will put you slightly over that. Your tare mass will also be affected, so your load capacity will come down.
* the maximum allowable rim width for 4WDs is 8". 35x12.5-15 tyres are all designed for a minimum rim width of 8.5" **. so whilst the tyre is legal on an 8.5 or 10" wide rim, the rim would be illegal on the 4WD.
** I have heard that some engineers have included in the certificate to derate the load capacity of the tyres to allow 35x12.5"-15's on 8" rims. try your luck. Athol is obviously not amongst them. It may just be a dirty rumour.
Free air locker to the first 20 callers!
didn't say you were complaining . I was just clarifying that there is a good reason why he won't pass them, and that in all likelihood it will be difficult to find an engineer who will, however mike stated he has 315's which do not have the technical legal unroadowrthiness of 35's - 315/75-16 on a 16x8 rim are legal.udm wrote:i wasnt complaining, i was just letting mike_nofx know that Athol is not an option if he intends to engineer 35"dumbdunce wrote:because they are illegal*udm wrote:Athol doesnt certify 35"
I cant see a reason why an engineer would not pass 315/75's on 16x8" rims on the vehicle in question, unless it failed a brake test with such wheels - which a 105 would pass with flying colours unless the braking system had some serious deficiencies. I am not an engineer.
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most? all? manufacturer's minimum rim width for 315/75-16 is 8", for 35x12.5-15 is 8.5" - which is why I can't see a reason etc repeating myselfbogged wrote:due to the recommended manufacturer min width for the tyres.dumbdunce wrote: I cant see a reason why an engineer would not pass 315/75's on 16x8" rims on the vehicle in question.
Free air locker to the first 20 callers!
most manufacturers say 8.5-10 for 315's - which is what I was told when I asked bout gettin my GU done with 315's. Most I've looked at anyway repeating myself.dumbdunce wrote:most? all? manufacturer's minimum rim width for 315/75-16 is 8", for 35x12.5-15 is 8.5" - which is why I can't see a reason etc repeating myselfbogged wrote:due to the recommended manufacturer min width for the tyres.dumbdunce wrote: I cant see a reason why an engineer would not pass 315/75's on 16x8" rims on the vehicle in question.
which manufacturers? just had a quick look, BFG and Cooper specify 8" for 315's. couldn't find data for Goodyear.bogged wrote:most manufacturers say 8.5-10 for 315's - which is what I was told when I asked bout gettin my GU done with 315's. Most I've looked at anyway repeating myself.dumbdunce wrote:most? all? manufacturer's minimum rim width for 315/75-16 is 8", for 35x12.5-15 is 8.5" - which is why I can't see a reason etc repeating myselfbogged wrote:due to the recommended manufacturer min width for the tyres.dumbdunce wrote: I cant see a reason why an engineer would not pass 315/75's on 16x8" rims on the vehicle in question.
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