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View Full Version : bolt in or weld on subframe connectors for my mustang?



dizasterzrfun69
02-25-2006, 05:51 PM
Well i've been broke and slacking off on my mustang project but now it's time to buy a few parts. It's a 90 lx, originally a 4-cyl but i'm putting a built up longrod 306 in it as soon as i get the chassis all ready for it. Should i buy bolt in or weld on subframe connectors? I have a welder so that's no problem if i go that way. Is there any certain brand i should get?

Also should i invest in a tubular k-member and tubualr a-arms? I have some lowering springs i got with the car (dont remember how much it lowers it) and i have quick ratio steering i need to install. I'm still pretty new to this performance car stuff but hey, i'm learning. I did learn that ricers suck! LOL i've known that for years and years though.

What gears should i get for the rear end and what all do i need to buy when i buy them? Any shims or anything? or do the shims and stuff come with the gears? What brand of gears? does it matter? Ford racing? Richmond? It has an automatic race tranny (still havent figured out exactly what model or whatever) with a 3400 or 3500 stall speed. I'd like to be able to drive this bad boy on the street but with that tranny, i dont know if it's possible. Any tips on what stuff to get would be great, i know theres a few mustang people on here. thanks

Kevin

dizasterzrfun69
02-25-2006, 05:54 PM
oh i forgeot to mention what gear ratio should i get? Not just what brand. and as far as subframe connectors arent there full length and something else? which ones should i get? i did see some "tubular" subframe connectors, anybody hear if these are good or bad?

dizasterzrfun69
02-25-2006, 05:58 PM
ok i'm forgetting everything today, i believe it's an 8.8 rear end, and i'm really trying to decide between 3.73's or 4.10's

badculture
02-25-2006, 09:56 PM
go with the weld in connectors. whatever brand you end up going with just make sure they are beefy. alot of companies sell the bolt ins and ones that require very little modifications usaully all that means is you are getting a smaller sized connector which is going to flex more. the ford 8.8 is a good rear end a lot of guysare using them now. are you going to do away with the c-clips and buy good axles? as for gear ratio it depends what you want to do with the car(street/strip?) What size tire are you going to run. Either way there is not that much difference between a 373 and a 410. you are talking tenths of a secound in the 1/4.

200x Basket
02-26-2006, 05:06 PM
wolferacecraft that is all you need. well that and a bucket of cash!!

1984kxtTECATE
02-26-2006, 07:36 PM
for the mustangs, weld in sub-frame connectors are the way to go. Like stated before is it going to be a drag car or a track car. If it is a track I would go with 3.73, tubalar a-arms, 17 or 18" wheels and some low profile tires all the way around. You want to make sure you you brace the engine up bay up also if you are going to drive it on the track, make sure you support and brace the shock towers, trunk area, underneath although you got the subframe connectors for that. the 8.8" rear is good, but the 9" is better.

kxttecate
02-26-2006, 10:22 PM
I would go with the weld in connectors. I had a 90 LX 5.0 and had weld in connectors. My car was a 5 speed and I had 3.73 Richmond gears in it. With the automatic you can definitely get away with 4.10's and still be streetable. If it's gonna be mainly a track car you could even go more. Can't remember about shimming. I didn't put the gears in, I had a shop do it. If your motor is only going to be a 306, the 8.8 will be fine. Just beef it up with some heavy duty axles. Unless you have some extra $$$ to blow, I think the tubular k member and a arms would be overkill at this point.

dizasterzrfun69
02-26-2006, 11:31 PM
well i want it to be a car i can drive down to the store, or i can take it to the drag strip and woop arse. I guess i want the best of both worlds. I would like it to handle good around corners and stuff too.

dizasterzrfun69
02-27-2006, 06:31 PM
chris is it? (200xbasket) since your so confident;) in wolfe race craft, which subframe connectors would best suit me? they have only 2 kinds for the mustang from what i can see. The $79 standard tubular weld-in style or the $225 through the floor subframe connectors. Which ones would be better? I know it's only a built up 306, but if i ever decide to put a bigger engine in will the $79 tubular subframe connectors work alright? I know that if you go cheap on parts then your going to do more damage than good and kick yourself in the arse.

My problem is, i work for my dad and he has me on "part time" so i'm basically going week to week for cash. I know i need to go to college or get a real steady job, but $600 a week is pretty good for a 19 yr old. i was hoping to save up some cash and then go to college or whatever, buuuuuuut i found the mustang that i now have and i got into 3-wheeler world and so basically my money isnt getting saved. but.. back to the subject, should i go with the $79 or the $225 subframe connectors? Are the through the floor subframe connectors alot harder to install?

As far as gears go, i'm still undecided between 3.73's and 4.10's, but whichever i choose, do you think i could put them in myself? i bought 2 different ford manuals that talk about it i think but i dont want to risk tearing something up. I just cant see paying the local speed and custom shop $250 LABOR to put them in.

I had a friend stop buy today who hadnt seen or heard anything about the car, then we started talking about it and he's like oh it's gonna be bad arse, it's so nice and i cant wait and this and that so now i'm even more anxious to get-er-done! :naughty:

Kevin

dizasterzrfun69
02-27-2006, 06:50 PM
for the mustangs, weld in sub-frame connectors are the way to go. Like stated before is it going to be a drag car or a track car. If it is a track I would go with 3.73, tubalar a-arms, 17 or 18" wheels and some low profile tires all the way around. You want to make sure you you brace the engine up bay up also if you are going to drive it on the track, make sure you support and brace the shock towers, trunk area, underneath although you got the subframe connectors for that. the 8.8" rear is good, but the 9" is better.


Well I know these arent tires for drag racing :lol: but whats on there now are ford racing "pony" wheels. The tires are Doral SDL50 P245/50R16 they look good on it but of course, they arent good tires for the strip. For the rear end i have the (i think) stock rear axles for a 90gt. they are 4-lug which i know isnt the greatest idea but those are what i have for now. I plan on getting a strut-tower brace but what else should i got for the engine compartment to "brace" or "support" it? what in the hell do you get and do you really need anything for the "trunk area" to brace or support it?

i know I know, you guys are all thinking, this is just some kid who wants to have a fast car, real cheap, doesnt know anything about them, and is going to kill himself if he ever gets it running. Well thats not the case, I've been in love with the mustangs as long as i can remmeber, i just never really got into the mechanical end of it. I never have had to do any serious engine work, so here i am, trying to learn it as i go rather than paying someone to do it where i'd have no idea how to do any of it. I mean i know how to change oil, do tune-ups, waterpumps, alternators, head gaskets, brakes, etc.. Just never had to go into the cams and gearing in the rear ends and all that.

Kevin

dizasterzrfun69
02-27-2006, 07:04 PM
heres some pics of the tires/rims and the tranny. Can anyone tell what kind of tranny it is by looking at it? Did the guy lie to me and it's really a stock tranny? Like i said, i'm learning still :idea:


Kevin

cliff2302
02-27-2006, 07:45 PM
for the gears you need to figure out what motor (cam) you are going to have, what your tranny is, and what size tires your going to use. like someone said early, 373s aren't too different from 411s, so it wont be too big of a deal. just ask yourself what you will do more with the car, drive it or race it? race = 411s, drive = 373s. When you order the gears you should order a set up kit also. It comes with shims, gaskets, crush sleve, everything you need. I set my first center section with the help of someone who knew what was going on, and i will tell you it was pretty difficult. It also takes a lot of time if your not familiar with it. i'd pay the money for it if i were you. good luck, take it as you can afford it, thats what i've been doing with my cars and i'm graduating colleg ethis semester and my 64 is ready to go racing.

YAMAHA_Jim
02-27-2006, 08:20 PM
This was answered but I'll put in my 2 cents, welds are stronger than bolts if the welder knows what he's doing.
My dad just put a 8.8 rear w/ARB airlocker in his wrangler/rock crawler. So far its been bulletproof against the abuse.I know the straight six isnt gonna break the rearend but the rocks might eventually.
Good luck with the stang.

dizasterzrfun69
02-27-2006, 08:25 PM
well heres what the guy said is done to the engine.. comp cam, Trick-flow 1.6 Roller rockers, trick flow twisted wedge heads, 306 d.s.s long arm, .30 over dished pistons, ford racing double roller timing chain, 36# injectors, 75mm MAF and throttle body, cobra intake. Thats what he wrote on this paper when I bought it. Here is all the info off of the cam card, seriously can someone tell me what it all means? I really want to learn!

Grind#: FW 3307R /3309F HR114.0

Intake Exhaust
valve adjustment HYD HYD
Gross Valve Lift .507 .507

Duration@
.006 tappet lift 273 283

valve timing Open Close
@ .050 INT 2 BTDC 42 ABDC
EXH 55 BBDC 1- ATDC

These specs are for cam installed
@ 110.0 Intake Center Line
Intake Exhaust
Duration @ .050 224 234 Springs required
Lobe Lift .3170 .3170 Valve Spring Specs Furnished
Lobe seperation 114.0 With Springs


This thing sound good? LOL
Kevin

dizasterzrfun69
02-27-2006, 08:26 PM
wow that little chart didnt come out right, hope you can still read it!

dizasterzrfun69
02-27-2006, 08:47 PM
I figured out our new scanner so heres the cam card.

dizasterzrfun69
03-03-2006, 07:01 PM
Anyone? I tried to subscribe to corral.net but they havent responded to any of my emails. Great customer service :mad:

Kevin

cliff2302
03-03-2006, 11:07 PM
call comp cams and i'm sure they will be happy to tell you what it is. I have limited cam knowledge so i'm not touching this with a 10' pole

wolfguy
03-04-2006, 01:16 AM
ok heres the scoop on your stang, everyones been saying about weld ins and thier right, except the best way to go, is buy the bolt in and have it welded. Trust me on that one. the reason welding is better is because it gives almost 100% efficiency. Bolts only give about 60-70. Your engine sounds good, nothing too crazy but it will move hard. The cam specs you put out would take another post to translate if you really want me to thats fine you can email me. An 8.8 rear is a good rear for those cars. The trans you have now is junk, the stock 4 cyl auto won't hold the horsepower. personnally I suggest an old top loader manual 4 speed with hurst linkage and a well built 4:11 rear, but you'll be doing about 35 in 4th at 3500 rpm, you'll also stand the car up launching. but for what you want, get a AOD it's a 4 speed auto with overdrive, your stall converter should work ok, that and the 3:73 gears will give you perfect street strip combo. Now something not covered is your control arms. Ford did a crap job of making these strong and you will literally rip them out of the car. There are many ways to go about this, obviously replacing the arms for stronger performance brand, and they also make support plates that hold the mounts to the body of the car that get welded on the inside where the back seat would be. This makes the car nice and strong but also makes it stiff. A stiff mustang unfortunately means no traction especially with the lousy weight ratio these have, so get yourself some cheater slicks BF Goodrich drag radials they're street legal you'll hook up and you won't flop around at the end of the track. The front springs have to get changed, the weight difference is huge so good job with those springs you got. That set up will give you a strong reliable toy easily capable of 13 possibly a high 12 if you play your cards right. Any other info you can email me, I know these cars pretty well which is why I drag oldsmobiles ;)
wolfnrocket@hotmail.com

dizasterzrfun69
03-04-2006, 10:43 AM
Well the tranny definately isn't a stock for a 4-cyl. I have the 4 cylinder engine and tranny sitting next to the other tranny and they are nothing alike. The tail end of the tranny by the output shaft is totally different looking (and shorter) than the 4-cyl. and the bell-housing is also not a seperate piece on the "race" tranny like on the 4-banger. He also mentioned the tranny has a 3400 or a 3500 stall speed. This guy had a supercharger on it before I got it but he sold the supercharger. So i know it will run, just dont know how good.

Kevin

jason85atc250r
03-05-2006, 12:56 AM
just letting you know Ford Motorsports makes 3.90's for the ford 8.8. my brother has them in his 1994 mustang GT.

he got a tubu;ar k frame and aftermarket strut bearing plates. strut tower brace that makes it handle real good . but not as good as my parents 2005 gt stock

dizasterzrfun69
03-05-2006, 01:02 AM
just letting you know Ford Motorsports makes 3.90's for the ford 8.8. my brother has them in his 1994 mustang GT.

he got a tubu;ar k frame and aftermarket strut bearing plates. strut tower brace that makes it handle real good . but not as good as my parents 2005 gt stock


I thought they made 3.90's but wasnt 100% sure. Maybe thatd be the way to go since i cant decide between 3.73's or 4.10's. I plan on getting a strut tower brace, just to beef it up and add a little chrome under the hood. I do like how the 05's handle too.

Kevin

jason85atc250r
03-05-2006, 01:11 AM
that tubular k frame made a bigger difference than the strut brace on his car.

badculture
03-05-2006, 02:21 AM
Put a Pro Charger(or any kind of centrificul super charger)on it and invest in a rollcage.
that motor was built for forced induction. Using it for a naturally asperated engine is really not getting the most out of it.
dont try the rear end if you dont know what your doing

dizasterzrfun69
03-05-2006, 02:24 AM
dont try the rear end if you dont know what your doing
:D

Thats kind of what i was thinking, but $250 LABOR to have them put in? Aint that kinda high?

Kevin

badculture
03-05-2006, 02:41 AM
no $250 is not that bad thats about 50 bucks an hour that is about what I charge to do them

cliff2302
03-05-2006, 06:40 AM
thats what i paid and i helped set it up (with the price of the gears)

SWIGIN
03-06-2006, 06:00 PM
i have 3.90s in my 94 stang..they are motive gear gears not ford gears....3.90s are a nice inbetween choise