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Backspacing / Rim / Wheel Size CALCULATOR
Posted: Mon Apr 14, 2008 4:33 pm
by jessef
Re: Backspacing
Posted: Mon Apr 14, 2008 6:58 pm
by mararmeisto
Delica's normally come equipped with 215/85R15s (although that is not readily evident from the door sticker). 235/75R15s are suitable replacements (only about a 1.2% difference in tire size).
And here is an excellent article on backspacing and the importance of getting it right:
http://www.fourwheeler.com/techarticles ... index.html
Not right = rubbing and/or damage to steering assembly, wheel well, tire, etc.
Good person to check with, I think, would be Mystery Machine.
Re: Backspacing
Posted: Mon Apr 14, 2008 7:07 pm
by jessef
mararmeisto wrote:Delica's normally come equipped with 215/85R15s (although that is not readily evident from the door sticker). 235/75R15s are suitable replacements (only about a 1.2% difference in tire size).
And here is an excellent article on backspacing and the importance of getting it right:
http://www.fourwheeler.com/techarticles ... index.html
Not right = rubbing and/or damage to steering assembly, wheel well, tire, etc.
Good person to check with, I think, would be Mystery Machine.
It's funny, I've pointed many people to that backspacing info link.
I'm familiar with rubbing/linkages binding,etc.. as I fabbed (DIY) quite a bit on my Jeeps and Pajero (body/susp lifts) but have zero experience with Delica's.
I'm just in a pickle of choosing one set of rims out of the two. My Pajero is gone in two weeks, we're moving into a new place and both Delica's are coming in so we are VERY tight on space/storage.
Hence this post.
If you had two sets of rims to choose from and can only pick one.
15x8 3.75" or 4" backspacing, which would you take.
I know some of you guys are running these rim sizes out there.
You see them on 80% of Toyota's out there.
I'll shoot MM a PM.
Jesse
Re: Backspacing
Posted: Mon Apr 14, 2008 7:38 pm
by delicat
jfarsang,
Would it help if I stored your rims until you get your vans? That way you could fit and compare once you get them. I'm in Burnaby and would be happy to help you out, just let me know...
Re: Backspacing
Posted: Mon Apr 14, 2008 7:47 pm
by jessef
delicat wrote:jfarsang,
Would it help if I stored your rims until you get your vans? That way you could fit and compare once you get them. I'm in Burnaby and would be happy to help you out, just let me know...
I'm in BBY too.
Sent you a PM
Jesse
Re: Backspacing
Posted: Tue May 06, 2008 9:33 pm
by jessef
If anyone is interested in the stock 15x6 Delica rims (many versions) measurements.
Here they are :
Jesse
Re: Backspacing
Posted: Wed May 07, 2008 12:29 am
by torchard
Depends on the tires you plan to install obviously. Assuming you're not installing anything too massive your pic seems to suggest a 4" offset on an 8 inch rim would allow you sufficient width.
Re: Backspacing
Posted: Wed May 07, 2008 5:49 pm
by josh
jfarsang wrote:

The info there for the 31/10.5/15 is exactly the same as the rims that I am running...
Josh
Re: Backspacing
Posted: Thu May 15, 2008 12:34 am
by jcolvin
I'm running a stock landcruiser 80 series 16'' wheel. I'm not sure exactly what the backspacing is but the offset is pretty large and the wheels stick out considerably more than stock.
I've had no issues with wheels rubbing or linkages binding (I checked on a jack to make sure nothing comes close). The track is CONSIDERABLY wider, and it helps a great deal with stability. The stock track is pretty narrow for a high center of gravity vehicle like a delica. With the wider wheels on it feels a lot more stable round corners.
Re: Backspacing
Posted: Thu May 15, 2008 7:53 am
by jessef
I bought some 15x8 (3.75" backspacing) alu rims. Test mounted them and they sit just a 'hair' out of the wheel wells.
Nice and wide stance. Will snap pics when my tires get in.
So the following rims work without flares :
15x7 / 2.75 or 3" BC
15x8 / 3.75 or 4 " BC
For anyone looking to toss on 31's or larger.
Jesse
Re: Backspacing
Posted: Thu May 15, 2008 11:00 am
by torchard
Maybe this has been exhausted elsewhere but any issues turning 31's i.e. fuel economy, acceleration?
--T
Re: Backspacing
Posted: Thu May 15, 2008 11:38 am
by jessef
torchard wrote:Maybe this has been exhausted elsewhere but any issues turning 31's i.e. fuel economy, acceleration?
--T
I don't know anyone except for Josh who's running 31's on an auto and that has responded.
http://www.delica.ca/forum/upgrading-to ... -2738.html
I do know that I've seen delica's come in at least three different gear ratio's 5.285, 4.875 and 4.625's. You can check by looking under your driver's seat carpet (little 3"x2" piece already cut out that folds up).
Out of the zillions of Delica's/Pajero's I've looked at over the past few years, the majority I would guesstimate 80% have 4.875's (auto) and 10% (5.285's) and 10% other ratio's.
I had one with 5.29's (5.285 ot tractor gears as well call them) and it was a necessity to run at least 31's (I chose 32's) to lower the RPM's down and keep the flow of smooth shift points at an acceptable rate across the board while accelerating.
I have been driving one Delica for a week with 4.875's (average gearing) with 30" tires and at 100 km/h I'm sitting at 2,530 RPM. Another Delica I drove, same gearing (swapped tires) same tires, at 100km/h I was sitting at 2,620 RPM). 2nd one probably had some drag on it (crapped out bearings, brakes, driveline components, etc...)
I'm going to toss on 31's and get the RPM's down a touch more but I'm going to expect a decrease in fuel mileage and acceleration.
The only upsides to going to 31" tires are -
Lower RPM on the highway
1" more clearance drivetrain/body from the ground
Downsides -
Decrease fuel economy
Decrease acceleration
Have to modify body parts a bit at full tilt / articulation
30" tires with the 4.875 gears seems to be the magic combo.
Of course, tread pattern, tire width, tire pressure, light/led foot on the pedal will all contribute to different readings.
Jesse
Re: Backspacing
Posted: Thu May 15, 2008 9:48 pm
by jcolvin
"The only upsides to going to 31" tires are -
Lower RPM on the highway
1" more clearance drivetrain/body from the ground"
Well, and also bigger tires just ride better over bumps/potholes etc, have less tendency to dig in in soft ground/sand, etc etc.
Jonathan Colvin
Re: Backspacing
Posted: Thu May 15, 2008 9:53 pm
by jessef
jcolvin wrote:"The only upsides to going to 31" tires are -
Lower RPM on the highway
1" more clearance drivetrain/body from the ground"
Well, and also bigger tires just ride better over bumps/potholes etc, have less tendency to dig in in soft ground/sand, etc etc.
Jonathan Colvin
Yep

Re: Backspacing
Posted: Fri May 16, 2008 12:40 pm
by joedelica
So the following rims work without flares :
15x7 / 2.75 or 3" BC
15x8 / 3.75 or 4 " BC
Hi Jesse,
Looking to change my stock rims to a wide enough offset to sit "relatively flush" with the standard
size Deli flares that I have; but I do not wish to throw 31's on and do modifications.
So which offset would work best
with flares?
Cheers,
Joe