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Author Topic: performance upgrades what to do  (Read 4191 times)

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duzie

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performance upgrades what to do
« on: February 06, 2012, 04:34:32 PM »
1989 2.5 tbi 5 speed all stock 93,000 miles in the couple of hundred dollar range whats the first thing you would do to your jeep to get a little more  from it jeep is running fine currently but want more pep
 
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Duck Dodgers

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Re: performance upgrades what to do
« Reply #1 on: February 06, 2012, 05:34:38 PM »
4.0l TB swap. Added a bit more power to mine. Not a lot but enough to notice.
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Offline Jeffy

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Re: performance upgrades what to do
« Reply #2 on: February 06, 2012, 06:39:07 PM »
Quote from: Duck Dodgers on February 06, 2012, 05:34:38 PM
4.0l TB swap. Added a bit more power to mine. Not a lot but enough to notice.
Won't work on a '89.
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"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

Offline chardrc

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Re: performance upgrades what to do
« Reply #3 on: February 06, 2012, 07:05:41 PM »
electric fan swap would be first on my list...

if you have access to a machine shop or someone that does boring the tb to 50 mm realy helps bring the tbi 2.5l to life. but its a one off thing unlike the 4.0l tb swap that the mpfi guys can do.
« Last Edit: February 06, 2012, 07:06:54 PM by chardrc »
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1990 YJ 4cly, ax5, 2.5 inch BDS lift, 31 MTr\'s,  Powertrax-lockers all around, track-bars removed, boomerang shackles, warn m8000 winch, electric fan. [sold but not forgotten]

2007 jk Rubicon 2dr

Nicks92jeeper

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Re: performance upgrades what to do
« Reply #4 on: February 07, 2012, 01:19:41 AM »
Not sure of the setup of the 89 but perhaps, if it has a carb then spacer, opening up the opening for intake manifold? Msd ignition coil or something along those lines. Better spark plugs and wire. Perhaps a performance distributor cap and rotor. New fuel filter helps. Different blower motor for the heater (pretty toasty mod)

The E fan will help free up a few ponies. If you can do synthetic oil, that helps things move a lot better.

If carberated, is it possible to swap in fuel injected intake manifold and throttle body and add in the electrical components???
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Offline sharpxmen

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Re: performance upgrades what to do
« Reply #5 on: February 07, 2012, 08:05:24 AM »
Quote from: Nicks92jeeper on February 07, 2012, 01:19:41 AM
Not sure of the setup of the 89 but perhaps, if it has a carb  [...]
If carberated, is it possible to swap in fuel injected intake manifold and throttle body and add in the electrical components???

'89 is a TBI.
there are more differences than just the intake manifold for MPFI conversion: Cyl head, cam, fuel pump, filter, inside/outside wiring harness, temp sender for ECU, distributor and cam position sensor in it and i think but not sure the pistons are also different.
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'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

duzie

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Re: performance upgrades what to do
« Reply #6 on: February 10, 2012, 04:21:26 PM »
thanks for the input , i am thinking maybe a catback exhaust to start and go from there so many things available like being a kid in a candy store
 
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Offline Jeffy

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Re: performance upgrades what to do
« Reply #7 on: February 10, 2012, 06:02:58 PM »
Quote from: chardrc on February 06, 2012, 07:05:41 PM
electric fan swap would be first on my list...

if you have access to a machine shop or someone that does boring the tb to 50 mm realy helps bring the tbi 2.5l to life. but its a one off thing unlike the 4.0l tb swap that the mpfi guys can do.
I agree.  While an electric fan won't give you any HP, it does free up some HP lost by the fan.

Basica like a hi-flow cat and a cat-back exhaust will also help.
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Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

Nicks92jeeper

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Re: performance upgrades what to do
« Reply #8 on: February 11, 2012, 02:25:18 AM »
Get 5 buddies, a tool set, a random 4.0 jeep somewhere in town and the cover of night and you have a new engine and transmission!!!
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Offline aka-justin

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Re: performance upgrades what to do
« Reply #9 on: February 11, 2012, 12:36:54 PM »
Quote from: Nicks92jeeper on February 11, 2012, 02:25:18 AM
Get 5 buddies, a tool set, a random 4.0 jeep somewhere in town and the cover of night and you have a new engine and transmission!!!


Let him take your 4.0.  :fish:
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[1995 YJ 2.5L with 4" lift on 31" KM2 - Sold] 1995yj
[2003 TJ Rubicon 4.0L with 4" lift on 35" Wrangler M/T - Sold]
To be continued...
--Justin

Nicks92jeeper

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Re: performance upgrades what to do
« Reply #10 on: February 12, 2012, 03:27:30 AM »
Quote from: 1995yj on February 11, 2012, 12:36:54 PM
Let him take your 4.0.  :fish:
I have a 2.5  :blbl:
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Offline sharpxmen

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Re: performance upgrades what to do
« Reply #11 on: February 12, 2012, 08:31:58 AM »
Quote from: Nicks92jeeper on February 12, 2012, 03:27:30 AM
I have a 2.5  :blbl:

i think that was his point  :wall:
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'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

Nicks92jeeper

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Re: performance upgrades what to do
« Reply #12 on: February 12, 2012, 07:12:27 PM »
That went over my head!
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Offline sharpxmen

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Re: performance upgrades what to do
« Reply #13 on: February 12, 2012, 07:52:51 PM »
Quote from: Nicks92jeeper on February 12, 2012, 07:12:27 PM
That went over my head!


i think his point was that you don't have a 4.0 and didn't go out to town with 5 buddies to get one

hope it's clear enough this time
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'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

Offline aka-justin

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Re: performance upgrades what to do
« Reply #14 on: February 12, 2012, 09:26:19 PM »
Joking or not, I don't take kindly to the suggestion. We all work hard for our toys. If he should pilfer someone, offer up your stuff first is my point. AGUHR could use a skid plate. Khvnp1l0t could use a radio.
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[1995 YJ 2.5L with 4" lift on 31" KM2 - Sold] 1995yj
[2003 TJ Rubicon 4.0L with 4" lift on 35" Wrangler M/T - Sold]
To be continued...
--Justin
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