Dis is fun watching heath and dave argue... 
CK5
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77K5. The IronMaiden...9/2 headed for Blazer Bash 20!
- Thread starter 76zimmer
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- 14bff bearing desintigrated 454 cookies custom diy4x aluminum fuel tank diy4x flatback dif covers diy4x frame boxing kit diy4x wraptor/truss ez-efi fords suck hemi orange and school bus yellow index l&l headers long/dana coolers making me her bitch. more tranny problems one tons phoenix trans convertor th400 full manual
jack of all trades build, overland, dunes, rocks, trails
So you ran in low most of the day dave? I usually run everything in high no problem.
Ive never run my 208 in low. And i imagine your doubler brings you to a much lower ratio. You should try a higher gear next time, then you wouldn't have to rev it up to the limiter, and i doubt that big block will bog out much, if so you can just slam it back in 1st gear.
with 500 HP i hope it doesn't bog. When I had a very tired 350 in my k5 I would run in low cuz it would bog like crazy, but since it was a 241 it was almost to low.
Exactly. Use that motor dave, otherwise you may as well have put a small block in if ur just reving it high to tirn low gears....
I don't like a term that doesn't apply, so in that realm of thinking.....I guess 4:1 would be overkill for a mall crawler anyway..I used 2:1 dave, (I don't have 4:1 but don't really need it for my truck), 2:1 works pretty well for the dunes with my 4.10 gears. I modified my governer to shift around 5500, so I just leave it in D and let it do it's thing.
And I don't have any chips or a dial either, I change it in the handheld screen. But I'm still going to say chip it and you're going to like it!
j/k mang, if my truck looked as good as yours, I'd be leary about crawlin with it too.
I also have a full manual v/b so I control it....basically at the base of the hill I'm at about 2500rpm in 2nd gear 2:1 range, then nail it to get it up to speed and load while climbing the hill, tops out about 4500 when doing it that way, and never shift gears...even as I'm nearing the top of the hill and momentum has slowed down, sometimes the sand would grab the tires and try to stop them, but a quick blast or two of the throttle would be plenty to get over the top, again without having to change gears.
Mine is studded also, but I just don't see any reason to spin it harder than 5K...OK, maybe I'll turn it to 5500 then.
Just good info Adam....I know Heath is a drag racer, so rpm is king there, and although I like rpm myself, I think I'm losing nothing by shifting at 5K, it drops right back into the middle of the torque curve at 3500, so what's to loose? Again, this ain't a drag tank...Dis is fun watching heath and dave argue...
I ran in 2:1...mid range for me, and with 4.56's 39.5's and 1.48:1 2nd gear I thought it worked real good.
No problem with bogging...I think I only hit the rev limiter was when I was down on the flats, going through the gears.
I don't like a term that doesn't apply, so in that realm of thinking.....I guess 4:1 would be overkill for a mall crawler anyway..
j/k mang, if my truck looked as good as yours, I'd be leary about crawlin with it too.
I also have a full manual v/b so I control it....basically at the base of the hill I'm at about 2500rpm in 2nd gear 2:1 range, then nail it to get it up to speed and load while climbing the hill, tops out about 4500 when doing it that way, and never shift gears...even as I'm nearing the top of the hill and momentum has slowed down, sometimes the sand would grab the tires and try to stop them, but a quick blast or two of the throttle would be plenty to get over the top, again without having to change gears.
Mine is studded also, but I just don't see any reason to spin it harder than 5K...OK, maybe I'll turn it to 5500 then.
Just good info Adam....I know Heath is a drag racer, so rpm is king there, and although I like rpm myself, I think I'm losing nothing by shifting at 5K, it drops right back into the middle of the torque curve at 3500, so what's to loose? Again, this ain't a drag tank...
I ran in 2:1...mid range for me, and with 4.56's 39.5's and 1.48:1 2nd gear I thought it worked real good.
No problem with bogging...I think I only hit the rev limiter was when I was down on the flats, going through the gears.
I guess i'll try mid(low) next time. I never ran in low last time because I only had two gears and top of second with the 2.7 in the 208 wasn't fast enough.
Low works really well guys, I don't know why everyone runs high, it's not like you are going 80 mph out there. I was trying to tell Adam to run low, low keeps the tranny cooler too. Now, I have 4.10 gears and a 2:1 low. So it isn't THAT low. If it was 2.6:1 or something it might be too low if my diff gears were still low. If I change to high gear I lose about a truck length in the sand drags. No it doesn't bog, but it doesn't put quite as much power to the ground. The tranny does get hotter in high range, maybe if I had higher diff gears it would be better, but I already spin too high on the freeway. I do run in in 3rd gear a lot in low range though. I think my max speed is about 70 mph in high gear at redline in low range.
I'm with you Dave, it's all good! Nothing like friendly bench racing. I bet if you were at the track you would see a measurable different between shifting at 4800 and shifting at 5400 or 5500, can you tell a difference at the sand drags, who knows. What I like to do is race somethnig that is consistent, another known rig, just to see how you do right next to them with them changing nothing and you changing your launch technique and shifting points, etc.
I'm with you Dave, it's all good! Nothing like friendly bench racing. I bet if you were at the track you would see a measurable different between shifting at 4800 and shifting at 5400 or 5500, can you tell a difference at the sand drags, who knows. What I like to do is race somethnig that is consistent, another known rig, just to see how you do right next to them with them changing nothing and you changing your launch technique and shifting points, etc.
Heath with your 36's and 4.10's I bet its just about the same as my 39.5's and 4.56's
Gotta add that a front dig into the side of a hill allows for sitting almost level on the tailgate to watch the drags from. Gets some strange looks too! Its cool to bury 40's up to the axle tubes!
Gotta add that a front dig into the side of a hill allows for sitting almost level on the tailgate to watch the drags from. Gets some strange looks too! Its cool to bury 40's up to the axle tubes!
I need to make some fuel tank changes.
Right now my tank is about 25 gal (factory) I cut off the dome to get it up tighter to the floor, which in reality didn't really gain me much by the time I got the tipover vent in place. The filler neck is run up through the floor and is anchored to the cage with a spillproof cap on it.
The rollover vent is inside the tank with a 90* barb fitting coming off the top of the tank and running along side the frame rail up to the tail light housing with a fuel filter on it to allow the tank to breathe. Problem is that vent line gets a droop in it and allows the fuel to sit in the line, preventing the tank to be filled without a backflow out the filler tube....not good. I was also concerned that it allowed the fuel pump to not draw fuel out of the tank as quick as it should. Perhaps if I just ran that 90* tipover vent tube along side the filler tube that would solve the filling problem. I'm not wild about the idea of having fumes in the rear of the truck though....just makes me worry about the rear seat passengers and being close to a fire hazard. So I would also like to increase the capacity by 5 gal or so, and also need to make somewhat of a dome to have a tipover vent in to allow the tank to breathe while running and while filling it. So is it time to build a new tank, and make it the way I need/want, or does someone see a few mods I can make to the stock tank to accomplish these items?
Right now my tank is about 25 gal (factory) I cut off the dome to get it up tighter to the floor, which in reality didn't really gain me much by the time I got the tipover vent in place. The filler neck is run up through the floor and is anchored to the cage with a spillproof cap on it.
The rollover vent is inside the tank with a 90* barb fitting coming off the top of the tank and running along side the frame rail up to the tail light housing with a fuel filter on it to allow the tank to breathe. Problem is that vent line gets a droop in it and allows the fuel to sit in the line, preventing the tank to be filled without a backflow out the filler tube....not good. I was also concerned that it allowed the fuel pump to not draw fuel out of the tank as quick as it should. Perhaps if I just ran that 90* tipover vent tube along side the filler tube that would solve the filling problem. I'm not wild about the idea of having fumes in the rear of the truck though....just makes me worry about the rear seat passengers and being close to a fire hazard. So I would also like to increase the capacity by 5 gal or so, and also need to make somewhat of a dome to have a tipover vent in to allow the tank to breathe while running and while filling it. So is it time to build a new tank, and make it the way I need/want, or does someone see a few mods I can make to the stock tank to accomplish these items?
ion
1/2 ton status
I'm saying just grab a cell and call it done.
well there's the thing about fuel cells, they don't make one to fit my dimensions...stock tank size, but maybe another 2-3" taller, I figure I can cut the floor out, and raise it to accomdate the taller tank.
Also not impressed with the one I have in the Jeepster...Its a Jaz with a focked cap that doesn't keep the water out of it either. Its a bitch to get it out of the tank sometimes.
This is what is in the Jeepster:
Oh and I really like my filler cap that is on the Maiden now....stainless, spillproof, welded to the cage, easy to access, and free!
Also not impressed with the one I have in the Jeepster...Its a Jaz with a focked cap that doesn't keep the water out of it either. Its a bitch to get it out of the tank sometimes.
This is what is in the Jeepster:
Oh and I really like my filler cap that is on the Maiden now....stainless, spillproof, welded to the cage, easy to access, and free!
ion
1/2 ton status
go to: http://www.docskustom.com/ktank_Instructions.html
Tell them JJ @ Classic Dash sent you
They can make a full custom tank to your measurements and i think he can even do it with factory pick-ups
Tell them JJ @ Classic Dash sent you
They can make a full custom tank to your measurements and i think he can even do it with factory pick-ups
ion
1/2 ton status
I haven't used a tank of his, I've seen them at SEMA and I get speed sensors from him. He's a super cool dude to work with
For a while Kert was talking about making custom water tanks but I don't think anyone actually had him make one. :nudge: :nudge: 
You rang!
Ok, design something that is low profile, maybe 20~25 gals, mounts in the factory spot and... oh wait...
this is Dave's part isn't it? 
Yes, you may as well get something that fits in the factory spot, otherwise you would be wasting that badass skid plate you just put on 
