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Twilightoptics
Hardcore (12sec Club)


Joined: 13 Jan 2004
Posts: 9191
Location: Auburn , WA

1987 Chevrolet Camaro IROC-Z

PostPosted: Thu Apr 24, 2014 8:02 pm    Post subject: shhhhhhhh Reply with quote

Be veeewy veeewy qwiet. I'm hunting boost.
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chevymad
Master B


Joined: 11 Jan 2004
Posts: 5472


1987 Pontiac Formula

PostPosted: Sat Apr 26, 2014 11:05 am    Post subject: Reply with quote

We were all very quiet.. did you get it? Laughing
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QwkTrip
11sec Club


Joined: 17 Feb 2004
Posts: 3942
Location: Peoria, IL

1989 Pontiac Firebird

PostPosted: Mon Apr 28, 2014 6:29 pm    Post subject: Reply with quote

WHAAAAT??? WHAT DID YOU SAY?
SPEAK UP, BOY! I CAN'T HEAR YOU!
DAMN KIDS, ALL THEY DO IS MUMBLE.
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chevymad
Master B


Joined: 11 Jan 2004
Posts: 5472


1987 Pontiac Formula

PostPosted: Sat May 03, 2014 4:19 pm    Post subject: Reply with quote

Actually seriously debating some boostage myself. I'm almost ready to push the button....
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rjmcgee
The Hammer


Joined: 08 Jan 2004
Posts: 2320



PostPosted: Sun May 04, 2014 6:28 pm    Post subject: Reply with quote

On what Brandon?
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chevymad
Master B


Joined: 11 Jan 2004
Posts: 5472


1987 Pontiac Formula

PostPosted: Sun May 04, 2014 9:19 pm    Post subject: Reply with quote

Jeep... Eaton supercharger. I'm trying to talk myself out of it at the moment though. Lol
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aaron_sK
Member


Joined: 23 Jan 2006
Posts: 8834
Location: Back in beautiful Tacompton

1987 Chevrolet Camaro IROC-Z

PostPosted: Mon May 05, 2014 7:05 am    Post subject: Reply with quote

chevymad wrote:
I'm trying to talk myself out of it at the moment though. Lol


Allow me to help: forced induction on a trail rig is a poor idea. Additional complexity leads to additional breakage. Besides, what are you going to do with more power in a Jeep? Tip over at a higher speed? If you're in a trail rig and you think you need more power, what you actually need is more gear reduction. Cool
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fiveoformula
Member


Joined: 08 Aug 2007
Posts: 1799
Location: OR

1988 Pontiac Formula

PostPosted: Mon May 05, 2014 8:38 am    Post subject: Reply with quote

I think Brandon just wants more passing power for use on his way to the trail.. lol
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Dewey316
The Lama


Joined: 08 Jan 2004
Posts: 7295
Location: Bringing the tech

1990 Chevrolet Camaro RS

PostPosted: Mon May 05, 2014 9:41 am    Post subject: Reply with quote

aaron_sK wrote:
chevymad wrote:
I'm trying to talk myself out of it at the moment though. Lol


Allow me to help: forced induction on a trail rig is a poor idea. Additional complexity leads to additional breakage.


As reliability goes, Eaton SC's are about the top of the list, how many OEM's use them?!?
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chevymad
Master B


Joined: 11 Jan 2004
Posts: 5472


1987 Pontiac Formula

PostPosted: Mon May 05, 2014 11:53 am    Post subject: Reply with quote

Not quite right Aaron. In mud you do need enough power to clean the tires. Been stuck cause I couldn't pull the next gear on a hill climb. But really it mainly needs highway power. If your behind someone doing 50 you're there for the duration. Price of the supercharger kit is less than half of a ls swap in a rubi
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Twilightoptics
Hardcore (12sec Club)


Joined: 13 Jan 2004
Posts: 9191
Location: Auburn , WA

1987 Chevrolet Camaro IROC-Z

PostPosted: Mon May 05, 2014 2:34 pm    Post subject: Reply with quote

I pass at 50 no problem...
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chevymad
Master B


Joined: 11 Jan 2004
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1987 Pontiac Formula

PostPosted: Mon May 05, 2014 4:42 pm    Post subject: Reply with quote

If I got a passing lane I do Laughing This kit takes the 6 from 135rwhp to 210. So its not a monster but that would work alot better. I really need to weigh this thing, I think its fat and getting fatter.

With the 31s I seemed to be able to pull on Luke when we went over Hood and back. With the 33's I'm always shifting down to keep up.

On the hill climb I got stuck on I was 4lo (4:1 ratio) and 2nd gear but couldn't pull 3d. So tires only spinning about 10mph.

Don't burn oil, no misfires, fuel trim is 0% now with the new injectors. Only have the precat's which are now about 2 years old. So other then being a heavy weight, I don't see whats slowing it down. Or i'm just not used to owning such a slow vehicle. Which sucks since its also my biggest gas hog! Laughing
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Twilightoptics
Hardcore (12sec Club)


Joined: 13 Jan 2004
Posts: 9191
Location: Auburn , WA

1987 Chevrolet Camaro IROC-Z

PostPosted: Mon May 05, 2014 4:47 pm    Post subject: Reply with quote

Mine with the bumpers skid and steering box cover weigh like 4200 iirc with my 220lb ass.
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chevymad
Master B


Joined: 11 Jan 2004
Posts: 5472


1987 Pontiac Formula

PostPosted: Mon May 05, 2014 5:03 pm    Post subject: Reply with quote

Ya... bet mines a bit heavier. Stock they're supposed to be over 4k for a rubi.. And I have bumpers, tank skid, winch, rock sliders and some heavy ass toyo mudders.

Anyway, what were you boosting?
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QwkTrip
11sec Club


Joined: 17 Feb 2004
Posts: 3942
Location: Peoria, IL

1989 Pontiac Firebird

PostPosted: Mon May 05, 2014 7:28 pm    Post subject: Reply with quote

I drove my Cherokee for 10 years. The 4.0L is the only engine I've ever had that got slower as you revved it up. And the mileage was worse than my crew cab truck.

I saw my Cherokee a few weeks ago. The new owner is destroying it.
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chevymad
Master B


Joined: 11 Jan 2004
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1987 Pontiac Formula

PostPosted: Mon May 05, 2014 7:51 pm    Post subject: Reply with quote

Add about a 1000lbs to the cherokee and you get the wrangler. Same motor but heavy weight.
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aaron_sK
Member


Joined: 23 Jan 2006
Posts: 8834
Location: Back in beautiful Tacompton

1987 Chevrolet Camaro IROC-Z

PostPosted: Mon May 05, 2014 8:22 pm    Post subject: Reply with quote

chevymad wrote:
In mud you do need enough power to clean the tires


You are absolutely right, however I think more gear would help out more than a SC. What gear is in it now? Did you regear when you went to the 33s?

Dewey316 wrote:
As reliability goes, Eaton SC's are about the top of the list, how many OEM's use them?!?


Indeed, but its rarely the SC itself that breaks. Everything South of it is what breaks. Overdesigning hurts you when you're out in the woods. That's why the 4.0L is in that thing in the first place. It is not efficient or powerful or light or cheap, but it just keeps spitefully running no matter what.

QwkTrip wrote:
The 4.0L is the only engine I've ever had that got slower as you revved it up.


Not uncommon for big straight truck engines. Both my 300 and my 22RE are 'upshift for more power!' Laughing
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chevymad
Master B


Joined: 11 Jan 2004
Posts: 5472


1987 Pontiac Formula

PostPosted: Mon May 05, 2014 9:20 pm    Post subject: Reply with quote

It has 4.10 gears and a 4:1 transfer case. I was in 4lo and couldnt pull a high enough gear to throw the mud out.
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Dewey316
The Lama


Joined: 08 Jan 2004
Posts: 7295
Location: Bringing the tech

1990 Chevrolet Camaro RS

PostPosted: Tue May 06, 2014 5:48 am    Post subject: Reply with quote

with the bigger tires, i could see you needing more gear.

Heck, in cheeko, with more power, less weight, the 3.73's really aren't even enough for the 30.5" tires I have on it now. I can't imagine 4.10's being very good for a wrangler with 33's.
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chevymad
Master B


Joined: 11 Jan 2004
Posts: 5472


1987 Pontiac Formula

PostPosted: Tue May 06, 2014 6:23 am    Post subject: Reply with quote

4.56 is optimal but not a big enough step to warrant doing. If I was going 35s then a 4.88 swap would be in the works. Still I can crawl over anything, it's when I need a bit more hp to grab the next gear and get the wheel speed up that its lacking.

Really only in mud do I ever notice I need more power. Crawling rocks its awesome. Heck I think it tops out about 15mph in overdrive in 4lo.. Usually the rest of the group starts leaving me behind between obstacles. Laughing
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