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Re: how do 38.5s fit? [Re: 0778drz110] #999134 06/06/10 05:56 AM
Joined: Jul 2005
Posts: 2,088
Charlotte, NC
DRaider90 Offline
Body Damage is Cool
***
Quote

I couldn't find a set of 11s that I liked and these 15s popped up 40min away.


I missed this a couple posts back. I didn't realize you had 15/38.5-15 Boggers instead of 38.5x11-15s. Even though I admit I thought they looked a little wide for being 11s. Good luck with running those 88lb tires, they weigh 3lbs more than a 39.5x15 IROK essentially. But again more power too ya. Here I was worried about the Q78s @ 65lbs being too heavy. <img src="/forums/images/graemlins/lol.gif" alt="" />

Last edited by DRaider90; 06/06/10 05:56 AM.
88 Raider(Red):160k-Reman'd 2.6-5spd-Weber-SW Hubs-34x9.5 TSL-OffRd Pkg-1"Tbar-2"BL-CB
88 Raider(Silver):No 2.6/Bad KM145 Parts/Project
88 Montero(Brown):No 2.6,4.88s Parts/Project

[b]4X4 STICKERS,SHIRTS,ETC:
4WD Stickers AT COST.[b]
Re: how do 38.5s fit? [Re: DRaider90] #999135 06/06/10 07:55 AM
Joined: Sep 2001
Posts: 8,557
Ocean Springs, MS
LandRaider Offline
Forum Moderator
*****
Where do you find tire weight?

I Noticed a SIGNIFICANT decrease in felt power when I went from my 25X12.50 procomp x-terrains to these 36X13.50 swampers.

87 Raider 4D56td v5MT1
31's..Basically Stock
Re: how do 38.5s fit? [Re: LandRaider] #999136 06/06/10 08:34 AM
Joined: Jun 2002
Posts: 6,211
Apache Junction, AZ
JohnnyBfromPeoria Offline
Trail Leader
*****
Check the manufacturer's web site. My mere Toyo Open Country M/T's in 33/12.5-15's weigh 69.4 lbs before a wheel is even considered.

But then again...they're GOOD tires. Ho-HO! (Flame suit on).

John B.
Re: how do 38.5s fit? [Re: LandRaider] #999137 06/06/10 03:42 PM
Joined: Feb 2000
Posts: 3,269
So Cal, USA
justice Offline
Roll Me Over
*****
Quote
Where do you find tire weight?

I Noticed a SIGNIFICANT decrease in felt power when I went from my 25X12.50 procomp x-terrains to these 36X13.50 swampers.


Going from 25's to 36's...that's a pretty big jump <img src="/forums/images/graemlins/lol.gif" alt="" />


Cant wait to see this thing move (under its own power)

99 Gen 2.5, fixing blown head gasket
89 SWB- 33's, ARB Front locker, SR rear locker/axle, SR F brakes, winch, WST Offroad Armor all Around, 2.85 Aussie T-case Gears (SOLD)
Sold: (2) 95 SR's, 86 SWB, 90LWB, 91 LWB
-Can Change a timing belt in my sleep..
Re: how do 38.5s fit? [Re: justice] #999138 06/06/10 07:16 PM
Joined: Jun 2002
Posts: 6,211
Apache Junction, AZ
JohnnyBfromPeoria Offline
Trail Leader
*****
Quote


Going from 25's to 36's...that's a pretty big jump


That's what I thought, too.

John B.
Re: how do 38.5s fit? [Re: justice] #999139 06/06/10 07:18 PM
Joined: Sep 2001
Posts: 8,557
Ocean Springs, MS
LandRaider Offline
Forum Moderator
*****
Quote
Quote
Where do you find tire weight?

I Noticed a SIGNIFICANT decrease in felt power when I went from my 25X12.50 procomp x-terrains to these 36X13.50 swampers.


Going from 25's to 36's...that's a pretty big jump <img src="/forums/images/graemlins/lol.gif" alt="" />


Cant wait to see this thing move (under its own power)




Typo. 35's to 36's!!

87 Raider 4D56td v5MT1
31's..Basically Stock
Re: how do 38.5s fit? [Re: LandRaider] #999140 06/06/10 11:06 PM
Joined: Aug 2008
Posts: 1,186
Florida Heartland
0778drz110 Offline OP
Body Damage is Cool
Quote
Quote
Quote
Where do you find tire weight?

I Noticed a SIGNIFICANT decrease in felt power when I went from my 25X12.50 procomp x-terrains to these 36X13.50 swampers.


Going from 25's to 36's...that's a pretty big jump <img src="/forums/images/graemlins/lol.gif" alt="" />


Cant wait to see this thing move (under its own power)




Typo. 35's to 36's!!

36x13.5r15 swamper-65 lbs
35x12.5r15 procomp-?
i couldn't find procomp weights...a 35x12.5 SS trxus mt weighs 66 lbs.

'88 Raider, 33" Maxxis, 2" body lift, 10K winch
Re: how do 38.5s fit? [Re: LandRaider] #999141 06/06/10 11:17 PM
Joined: Jul 2005
Posts: 2,088
Charlotte, NC
DRaider90 Offline
Body Damage is Cool
***
Quote
Where do you find tire weight?

I Noticed a SIGNIFICANT decrease in felt power when I went from my 25X12.50 procomp x-terrains to these 36X13.50 swampers.


35x12.50R15 Procomp X-Terrains: 34.7 x 12.7 - 64lbs - 18/32nds

36x12.5-15 Bias Ply TSL: 36.3 x 13.5 - 65lbs - 24/32nds

While the two tires almost weigh the same here is what makes your jump to the TSLs a drastic one.

- First off you are moving up from more than one inch in size, you are moving 1.6 inches. You are running close to a 36.5" basically.

- A huge difference in the radial to bias ply construction. Bias Ply tires have a lot more rolling resistance than radials do.

- Tread depth/amount is another biggie. You are starting off with a lot more tread. More tread = more rolling resistance.

- Also tread design is another factor.

- Lastly you are going from a 12.5 to a 13.5 which also increases rolling resistance.

You put all these together and it explains your loss in power.

Now just imagine going from an 31x10.5 Radial, to a 15/38.5 Bias Ply Bogger..... its going to be a HUGE difference. <img src="/forums/images/graemlins/scared.gif" alt="" />

88 Raider(Red):160k-Reman'd 2.6-5spd-Weber-SW Hubs-34x9.5 TSL-OffRd Pkg-1"Tbar-2"BL-CB
88 Raider(Silver):No 2.6/Bad KM145 Parts/Project
88 Montero(Brown):No 2.6,4.88s Parts/Project

[b]4X4 STICKERS,SHIRTS,ETC:
4WD Stickers AT COST.[b]
Re: how do 38.5s fit? [Re: 0778drz110] #999142 06/07/10 03:16 AM
Joined: May 2010
Posts: 67
Northern, CA
monty84 Offline
Getting the Wheeling Fever
That looks so sick.

'84 Monty SWB, 2.6 Manual, rear LSD, bOuNcY, cranked T Bars, 33x12.5 M/T's
Re: how do 38.5s fit? [Re: DRaider90] #999143 06/07/10 04:29 AM
Joined: Jun 2002
Posts: 6,211
Apache Junction, AZ
JohnnyBfromPeoria Offline
Trail Leader
*****
"- Lastly you are going from a 12.5 to a 13.5 which also increases rolling resistance."

And wind resistance, once you are at any kind of speed. The wider the tire, the bigger the air dam, in static terms.

John B.
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