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Old April 25th, 2009, 08:44 PM   #21
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ok, i think i can visualize what you are saying, a pic would be nice if its no bother, but eitheer way good advice, thanks.
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Old April 26th, 2009, 08:56 PM   #22
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The side facing the fender.

The side facing the blower motor.


The factory hole facing the alt. was filled with a peice of plastic and epoxy.
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Old April 26th, 2009, 11:18 PM   #23
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thanks
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Old April 27th, 2009, 08:45 PM   #24
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has anybody tried anything else, im trying to get every bit of power out of it i can, from what i know the 2.9 is a good motor but it just doesn't have as much power as i would like either, i'm going to try some of those mods i read about on TRS just for kicks, maybe the blaster coil, thermostat, 8mm wires, 5.0 19 lb injectors, early throttle body, and high flow intake and exhaust, advanced timing,maybe an electric fan if i can find one at a decent price. i don't want to drop money on a cam or headers, but if all that doesn't work ill be pissed i wasted the money but what ever. part of the fun for me is working on it, another big part of the fun is trying different things, everyone swaps in the 4.0 0r 5.0, maybe i can get a little power out of this thing.

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Old April 27th, 2009, 08:50 PM   #25
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you can use a bigger throttle body from a b2 but i forgot the correct years that had em.., 58mm i think..look it up on trs.com in the tech section.

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Old April 27th, 2009, 08:59 PM   #26
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its 86-87 b2's that had the bigger TB. Also you can port match the upper and lower intakes cuz they were poorly matched.
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Old April 28th, 2009, 12:03 AM   #27
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have you done the port matching? i think that wounds like a good one, if you id how do you do it or how muh did it cost you? the plenum spacer looks like a good one too.
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Old April 28th, 2009, 12:12 AM   #28
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Quote:
Originally Posted by Jdc215 View Post
have you done the port matching? i think that wounds like a good one, if you id how do you do it or how muh did it cost you? the plenum spacer looks like a good one too.
ive never done the port work but ive read about it on TRS. The bigger TB with a k&n cone filter makes the engine breathe better and adds power. You should be able to do the port work at your school, just take the engines class.
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Old April 28th, 2009, 07:12 AM   #29
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ok heres a question but what rpms are you turning while your wheeling it? what are you mostly wheeling it in. mud, sand, rocks. the 2.9 is not a power motor, its an rpm motor. get the revs up and let the bitch run til shes floating the valves. i ran a 2.9 off the valves floating for as long as it took me to get a 4.0. still bounce that off the rev limiter. you want power dont go with a 5.0 unless its a newer one out of a explorer or mountaineer. but make sure use the trans that comes out of the truck. those dont have distributors so they are optimal for water.

2.9=scream the rpms
4.0=rev limiter
5.0=heavier then 4.0 and not a ton of hp gain over the 4.0
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Old April 28th, 2009, 01:32 PM   #30
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in low range i generally have enough power for wheeling but im looking for a little more power to keep up with traffic commuting to school and work, its my dd and i wheel it too. what do you mean by "float the valves" im not familier with that term.

i dont have bogging power where i can get a ton of wheel spin in the mud, i run 32X9.5 goodyear gudgrips. i generally have enough torque for the times it is needed. im running some 235x75-15 on the road right now and like i said im looking for a little more power, to keep up with highway traffic, i know its not going to be as good on the highway as a car but id still like to have enough to keep the torque converter locked up with out loosing speed. i know POWER is a vague term but most importantly i want to keep up on the highway, 75-80 mph, i drive 96 fairly often.

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Old April 29th, 2009, 06:37 PM   #31
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im still not clear on exctly what "floating the valves" means
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Old April 30th, 2009, 10:37 AM   #32
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Its just a term people use to discribe when the RPM is higher than the valvesprings can control the valves.If the springs are too weak or your spinning your motor too high the valves will bounce off the valve seats in the heads creating a sort of rpm limiter since the motor will not rev any higher than where its "floating".
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Old April 30th, 2009, 11:14 AM   #33
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ok i see, is there an electric rev limiter other than that natural limit? im lookng at getting the early throttle body. i think its 86mm and i have seen that its supposed to give better performance all the way around. im also thinking about the KN that deathbypsi is running, a msd coil, plugs and 8mm wires, and a 180 thermostat. i guess ill see what that does for me. i tink ill try to get it all and put it on all at once to see what kind of gians i get.

how about gutting the cats, im running with the catback section removed, and i have 170,000 miles on the motor. would gutting the cats make it louder, i kind of like it how it is, and do you think it would give me any more power by allowing it to breath easier?

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Old May 12th, 2009, 08:00 AM   #34
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i know this is a long shot but doees anybody know anything about advanced timing on a 2.9 from what i have been told by a good friend its very motor specific and he said he wasnt going to say anything because he just dosnt know this motor. i have read some where 14 degrees. i really know nothing about motor proformance and such so imm appealing to you guys. i have been trying to do some reading and enquireing but now im trying to appeal to a larger crowd of knowlage. everyone says swap to a 4.0 but to be blunt thats just not an option for me right now. i lack the konwlage and time to do that kind of work.
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Old May 20th, 2009, 10:48 AM   #35
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In my opinion if you want more power it takes TWO days staying on it to install a 4.0
I just finished one .
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Old May 22nd, 2009, 04:37 PM   #36
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again i would spend the money but i i just cant do a 4.0 swap bottom line. not now. if i get another bronco II i will most definatly swap one in but not on this truck. i posted this thread because a 4.0 swap is not an option for me.
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Old May 31st, 2009, 04:24 PM   #37
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4.0's make decent power, and a huge jump over a 2.9, but they still are lacking.. even with a 5 speed, and 31's, I was wanting more in my little explorer... No way i would swap one in unless I had one for free.. Just go with a V-8

I had a 302 in my old BII, the swap was pretty simple, but exhaust/fan/radiator were all kinda tight.. Power wise though, it mopped the floor with my explorer, and it was a pretty stock motor. just a .030 302 with a aluminum intake, and 600 holley.. It could definately get away from you on a gravel road if you got on it, and hauled ass down the highway, getting 20mpg at 60mpg in the process(though the 5 speed helped I'm sure)

If I ever do another one though, it will be a 5.0 H.O. and a T-18 4 speed though.
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Old June 1st, 2009, 05:12 PM   #38
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thats sort of what i was thinking. why a t-18 over a t-5 or something? i think i would rather have an over drive tranny. i always thought a 4.9 out of a full sized bronco would be a cool swap but i dont konw how hard that would be. i have seen 4.9s run forever. more than one oldtimer mechanic has told me its the best motor ford ever built.
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Old June 1st, 2009, 09:49 PM   #39
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Alot of people don't care for T5's and offroading. The chincy POS one they used in Jeeps seems to have ruined them, despite many making their way into S10's and Astro vans and several other 4x4 equipped vehicles with little complaints.

But actually for a manual transmission with an overdrive with a V8 I would have gone with a M50D-R2, much more robust than a T5, and fullsize Ford T-case options.

Though a T5 will still work well, but the stronger versions ratios are significantly catered to street use.
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Old June 4th, 2009, 12:59 AM   #40
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Quote:
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But actually for a manual transmission with an overdrive with a V8 I would have gone with a M50D-R2, much more robust than a T5, and fullsize Ford T-case options.


The R2 is what I used in mine, it was nice for the OD, but the gearing in them sucks for any kind of wheeling, even with a V-8 in a light ass BII, it was geared way to tall offroad, with only 31's on it. Of course I had a 13-50 behind it, which didn't help either..
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