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Unread 08-22-2010, 06:46 PM   #1
DieselNasty
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5.2 performance

Lookin to get some extra power from my 5.2 and saw rock-it-parts has a throttle body, tb space, and cold air intake. My question is has anyone tried any of these mods and noticed any power gains? Are there any other places i can look for some performance parts for these zjs?

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Unread 08-22-2010, 07:55 PM   #2
NJSPEEDER
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Before you spend a bunch of money on parts:
1. You don't need to buy a cold air intake, just get out the dremel and cut the sides out of the air box that face away from the engine
2. Do an e-fan conversion. It gives you more control over engine temp frees up a noticeable amount of HP for a fraction of what a TB and Spacer cost
3. Do a full tune up. If you take care of any maintenance that has been ignored you will be surprised how much better the engine will run.

-Tim
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Unread 08-22-2010, 08:08 PM   #3
HighLonesome
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what he said^. and exhaust and tuner is the place to start, CAI only helps at or near WOT
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Unread 08-22-2010, 09:11 PM   #4
freakinheep89
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make sure you have OBDII, since some of the early 96 ZJ's were still OBDI.with OBDII you have tuners and programmers available. not so with OBDI
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[SIZE="1"][B]95 ZJ 5.2[/B]- D30/XJ shafts/D35 Yukon alloys,249, 2"BB, 30x9.5"Wildcat EXT,lots of motor mods, rancho shocks & stabilizer.[/SIZE]

[QUOTE=slayercr23;12630497]How would i go about Stroking it?[/QUOTE]
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Unread 08-22-2010, 10:24 PM   #5
DieselNasty
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its obdII i and hear you guys on the maintenance that is the first thing im doing. I was just curious about the tb and the intake since i couldnt find much. I have talked to Kolak already and plan on getting headers, 3in exhaust and ignition first. Maybe a reflash for the ecm later. How about the electric fan conversion who makes a nice setup?
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Unread 08-22-2010, 10:36 PM   #6
freakinheep89
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easiest way is to do the Taurus E fan swap. search it
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[SIZE="1"][B]95 ZJ 5.2[/B]- D30/XJ shafts/D35 Yukon alloys,249, 2"BB, 30x9.5"Wildcat EXT,lots of motor mods, rancho shocks & stabilizer.[/SIZE]

[QUOTE=slayercr23;12630497]How would i go about Stroking it?[/QUOTE]
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Unread 08-22-2010, 11:41 PM   #7
xgerstandtx
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x4 the taurus fan is a noticeable difference.
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Unread 08-23-2010, 01:06 AM   #8
freakinheep89
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List O' Crap to do to a 5.2

remove the 5.2

swap it for a 5.9(less machining this way)

bore the 5.9 over and make a 408 stroker

build the 408 with nice pistons, rings, heads, valves, springs, pushrods, cam, and lifters and all the other little goodies you want

put now 400hp+/- in where 5.2 was

watch the 249 transfer case commit suicide

swap in a 242.

observe as your transmission self destructs

send trans to be rebuilt

swap in a 242.

just a theory lol, didnt know if there was a budget
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[SIZE="1"][B]95 ZJ 5.2[/B]- D30/XJ shafts/D35 Yukon alloys,249, 2"BB, 30x9.5"Wildcat EXT,lots of motor mods, rancho shocks & stabilizer.[/SIZE]

[QUOTE=slayercr23;12630497]How would i go about Stroking it?[/QUOTE]
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Unread 08-23-2010, 07:47 AM   #9
DieselNasty
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lol thats a nice theory i wish i was gonna spend that much on this engine what a sleeper it would be! Thanks for the fan iinfo guys.
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Unread 08-23-2010, 10:12 AM   #10
DieselNasty
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ok so now i want to do the taurus fan controlled with thermostatic switches weems like a great mod
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1996 ZJ Limited 5.2
Stock so far soon to have a 5.9 and 46re! Plus lots of parts in boxes
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Unread 08-23-2010, 10:31 AM   #11
HighLonesome
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in the long run, a Welcome to Delta Current Control controller will work better and cost less than the failure prone thermoswitches
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Unread 08-23-2010, 11:16 AM   #12
DieselNasty
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yea i was looking at your write up. so your newer setup uses one of these controllers?
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1996 ZJ Limited 5.2
Stock so far soon to have a 5.9 and 46re! Plus lots of parts in boxes
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Unread 08-23-2010, 04:00 PM   #13
SoCalDevyn
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Like the others said, keeping that motor tuned up will help a lot on its own. Run a good exhaust set up and as for a tuner idk what ones actually work on these motors. Anyone got any they kno make a difference? I did the e fan swap, love it. I also have a msd coil I'm going to putting on soom for a better spark so maybe look iinto that
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Unread 08-23-2010, 05:48 PM   #14
DieselNasty
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yea im going to do the e fan swap for sure and the kolak ignition comes with an msd coil so that's coming eventually. Im still curious if anyone has a diff throttle body on there v8 or who has tunig and how much did it make a difference.
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1996 ZJ Limited 5.2
Stock so far soon to have a 5.9 and 46re! Plus lots of parts in boxes
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Unread 08-24-2010, 01:17 AM   #15
freakinheep89
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i have the Hughes engines Modified V8 throttle body. $170, when i swapped to the 1.7 rockers, it needed more air, so i got the Hughes from Hughesengines.com. made a big difference in breathing over the stock, but thats cause mine draws more air now, not sure of a stock 5.2 change but its worth a shot
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TJ-
[SIZE="1"][B]95 ZJ 5.2[/B]- D30/XJ shafts/D35 Yukon alloys,249, 2"BB, 30x9.5"Wildcat EXT,lots of motor mods, rancho shocks & stabilizer.[/SIZE]

[QUOTE=slayercr23;12630497]How would i go about Stroking it?[/QUOTE]
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