Moparts

converting...well, for this one anyway!

Posted By: blue_stocker

converting...well, for this one anyway! - 07/20/12 05:08 PM

Well, this is different and certainly should be interesting! I've been around the MOPARTS forums since the very early days but have been (so-to-speak) stuck in the drag racing 'groove'. Having been a drag racer (stock & super stock since '71), and not being able to sell this car as it was, it's being converted to street-duty, and up-to-this-point has been an intersting and somewhat disappointing adventure, but that seems to be changing. All of the hard-core racing parts and suspension have been removed/sold and the 'tamer' street-type components have begun to appear, BUT...the competitive spirit seems to have raised it's ugly little head once again; you know, the one that wants to twist the wheel under power, so I could be in a heap a trouble here too!

So wheel-twisters, here's what I've got and here's what I need from this 'handlers' forum: a good handling package for this old 1971 B-body. As it sits, the car's a former stock eliminator drag car, frames tied (quite well), 8 pt roll bar (a new mild steel cage in the basement, oh oh!), new 1.03" torsion bars, LCA stiffener plates, torque boxes, removed the D60 and am currently building an 8-3/4 w/powr-lok and after-market axles, looking at 16x8 steel wheels and Z-rated Falken 255-50-16 tires. Since this will be a 'street car' I opted to NOT go the 'pro street' route as I want good handling not insanity with the real 450-475 hp 440/4 spd that should give adaquate performance. You may have noticed I didn't fill in the suspension blanks, that's where y'all come in. BTW being as I DO like to lean on the loud pedal, there's a good possibility this old girl will see the likes of Thunder Hill and maybe some autocross action, so by-all-means, add your .02! Thanks...wb

Attached picture 7300604-BlueWhaledec07[1].JPG
Posted By: astjp2

Re: converting...well, for this one anyway! - 07/20/12 05:17 PM

Nice Car I think that you can start out with the basics and then change things as you test and tune. I would have left the 60 and just put in a power lock, I perfer the stoutness of it. Good luck with your project. Tim
Posted By: amxautox

Re: converting...well, for this one anyway! - 07/20/12 05:22 PM

The 8pt cage ---it's a NOT roll bar--- would be fine if you take out a bar or two, and put in the proper bars for corners. How many attach points on the new cage?
Posted By: autoxcuda

Re: converting...well, for this one anyway! - 07/20/12 05:26 PM

1 1/4 tubular front sway bar
adjustable rear sway bar

offset upper control arm bushings for 3-5 degrees caster or tubular control arms. Depending on budget.

Brake upgrades on that heavy car. Budget and objective dependent. I'd think 11.75 big rotors at minimum.

Bilsein shocks.

some type of rear spring that will bring the rear down and have a strong front segment: like a Firm Feel circle track or Hotchkis setup.

...just off top of my head.
Posted By: 72Swinger

Re: converting...well, for this one anyway! - 07/20/12 08:42 PM

My car was initially a street/strip bracket car with everything that went with that except a cage. My first couple upgrades were some RMS control arms and a fat Hotchkis swaybar along with swapping drag shocks for some Monroes. I have been hooked ever since, which was only last year. I have done a ton of other stuff since then as well and it keeps getting better and better.

Attached picture 7300843-100_1548[1].JPG
Posted By: blue_stocker

Re: converting...well, for this one anyway! - 07/20/12 09:13 PM

Thanks for responding guys. As for the 'roll bar', yes it IS a roll bar w/hoop, side bars and 2 rear bars intersecting in the trunk and 2 more extending from the cross bar of the hoop diagonally to the frame connectors=8 pt. The new cage is a 12 pt with bars connecting to the front longitudinals to the A-pillars, the A-pillar bars, an under-dash bar and one tube connecting the overhead to the A-pillars, side bars, the rear 'X' from the hoop to the rear shock towers and trunk bars so it should make the triangulation substantial.

The D60 IS stronger but the reality is sprung/un-sprung weight and since the car's not really needing that much additional strength (from the brute force of a 6500 rpm static launch in a drag car), the 8-3/4 should do well and have the added bonus of quick gear changing at the track, if needed. I am planning on poly bushings and some Firm Feel components but am not sure which direction to go with shocks?! Being a little 'overkill' oriented, I admit I must be a little more conservative but that balance point is new to me...HA!

Attached picture 7300878-whaleleftinterior.jpg
Posted By: PHJ426

Re: converting...well, for this one anyway! - 07/20/12 09:31 PM

To bring the rear end down go with a Mopar XHD leaf spring. (Get two left side springs) as to have the same spring rate on both the left and right side. Just like the T bars have with the same diameter.

To help lower the car get the front leaf hangers from Firm Feel they have a factory attachment point for stock height and the Higher bolt hole location to lower the car approx. 1" maybe more.

Here is a picture of my 72 RR with the same rear leaf spring set up above mounted in the lowering location, 16 x 8" wheels with 0 offset and 4.5" backspace from Vintage Wheel Works and the same size tires you mentioned 255/50R16 from BF Goodrich G Force Comp 2 ($136 each from tire rack)

We dumped the 4:30 gears in favor of a 2.94 sure grip center in the 8 3/4" out back.

Attached picture 7300896-6022012runner2.jpg
Posted By: TC@HP2

Re: converting...well, for this one anyway! - 07/20/12 10:02 PM

The simples, easiest, best bang for the buck would be to pick up the XV Level 1 kit. It is $2250 for new t-bars, springs, front and rear sway bars and rate matched shocks.

If you want to build it in sections as time/money are available and retaining some of your current parts, then the Hotchkis TVS set up is a nice package that can be purchased individually with an end goal that they will acheive. Overall will run you around $2500, give or take depending on your source for buys.

Either of these get you in the game without the need to dig into analysis of what works well together, what are good mods vs great mods vs incremental mods, or the headache of parts that don't play well together.
Posted By: blue_stocker

Re: converting...well, for this one anyway! - 07/21/12 05:56 AM

Thanks for the heads-up Tony. While browsing the XV page I noticed some interesting tid-bits which opened up enough of my thinking skills to ask a ton of questions so some phone calls to Firm Feel, XV and Hotchkis are in order. THANKS again, much appreciate! BTW, nice stance on your RR, Paul, looks great!
Posted By: PHJ426

Re: converting...well, for this one anyway! - 07/21/12 06:16 AM

Since you already have some parts like the 1.03" T bars I would just keep those and concentrate on the other parts you might like.

Don't overlook Firm Feel for their comprehensive list of parts and steering boxes etc etc. They might not have a kit listed like XV and Hotchkis but they have been in the Mopar handling business many years. Call Dick at FF excellent guy to bounce your ideas off of and get his opinion.
Posted By: 1_WILD_RT

Re: converting...well, for this one anyway! - 07/21/12 06:26 AM

You might want to read this before spending any money with XV

https://board.moparts.org/ubbthreads/show...part=1&vc=1
Posted By: blue_stocker

Re: converting...well, for this one anyway! - 07/21/12 08:06 AM

Thanks for THAT heads-up Randy, I sure don't need to be dealing with some mfg or vender that produces shoddy parts or get caught-up in some stinking drama, got too much of that...'elsewhere'! HA! Looks as if the straight-ahead method is the simplest and the best...I'll call Firm Feel and Hotchkis and leave the over-priced/glorified trinkets alone. Since the drag race chassis parts have been removed and sold I'm all ears for particular parts combinations, springs/shocks/sway bars/etc. I'd actually like to drop the car another 1-2" from the ride height of Paul's '72 runner, make it level and sling through the turns like the yellow Hotchkis '70 Challenger, I like that! Thanks again for the info guys, much appreciate...wb
Posted By: dangina

Re: converting...well, for this one anyway! - 07/23/12 08:52 PM

if you want a great deal on tubular adjustable sway bars for our runners - this is what i found, you can't beat the price!

http://www.sdtrucksprings.com/index.php?main_page=product_info&products_id=16954
http://www.sdtrucksprings.com/index.php?main_page=product_info&products_id=10105
Posted By: racealittle

Re: converting...well, for this one anyway! - 07/23/12 10:21 PM

Quote:

if you want a great deal on tubular adjustable sway bars for our runners - this is what i found, you can't beat the price!

http://www.sdtrucksprings.com/index.php?main_page=product_info&products_id=16954
http://www.sdtrucksprings.com/index.php?main_page=product_info&products_id=10105




Thanks for the tip, Just ordered the tubular 1 1/4 for $150, ($161.20 shipped). I wanted a Hotchkis, but this should do until I'm rich. I contacted them again and they lowered the shipping $10 or so. So that should make it $151.20 to match or beat Amazon.
Posted By: blue_stocker

Re: converting...well, for this one anyway! - 07/23/12 10:31 PM

Hmm, yes pretty interesting, and the price IS hard to beat. Front & rears look pretty good and just what I'm looking for; thanks for the heads-up, much appreciate!
Posted By: Kern Dog

Re: converting...well, for this one anyway! - 07/24/12 01:33 AM

That link lists the tubular bar for 71-72, but the 1970 models should have been included since they are the same. I wish that they would have listed the wall thickness. That really helps determine if it is any better than a 1 1/8" solid. Weight savings is nice, but if the performance is a step backwards , then where is the benefit?
Posted By: 72Swinger

Re: converting...well, for this one anyway! - 07/24/12 03:28 AM

I usually just google the Hellwig part # and see what comes up. I think I paid $140 shipped for my Hellwig rear bar.AMAZON rules......
Posted By: Skeptic

Re: converting...well, for this one anyway! - 07/24/12 04:13 AM

Quote:

if you want a great deal on tubular adjustable sway bars for our runners - this is what i found, you can't beat the price!

http://www.sdtrucksprings.com/index.php?main_page=product_info&products_id=16954
http://www.sdtrucksprings.com/index.php?main_page=product_info&products_id=10105


Thanks! I just got f/r Hellwig bars for my Barracuda for 301.96 including shipping.
Posted By: TC@HP2

Re: converting...well, for this one anyway! - 07/25/12 05:04 PM

Quote:

That link lists the tubular bar for 71-72, but the 1970 models should have been included since they are the same. I wish that they would have listed the wall thickness. That really helps determine if it is any better than a 1 1/8" solid. Weight savings is nice, but if the performance is a step backwards , then where is the benefit?




I've never had a '70 B body to verify, but as a transitional year, I thought late production year models MAY be able to use the 71+ bar, but might, depending on the pass through in the K frame, may be required to use the '69 and older bar, especially in early production year versions.

This is an important distinction as the pre '70 bar has much longer arms than the post '71 bar and will have differing applied rates between the two, even if they are the same diameter material.

I guess bottom line is if you have a '70, you'd better verify. In wb's case, his car is a '71 so it will use the short arm version like those found in E bodies. So, since I haven't shopped tubular anti -bars, is their a diameter difference between the cut off years as I've seen guys on here talking about 1.38" and 1.25" tubular versions.
Posted By: blue_stocker

Re: converting...well, for this one anyway! - 07/31/12 03:25 PM

Quote:

That link lists the tubular bar for 71-72, but the 1970 models should have been included since they are the same. I wish that they would have listed the wall thickness. That really helps determine if it is any better than a 1 1/8" solid. Weight savings is nice, but if the performance is a step backwards , then where is the benefit?





I called Hellwig Monday morning and talked to an engineer who claimed these 1-1/4" front tubular sway bars have .180" wall thickness, if that helps at all.
Posted By: dangina

Re: converting...well, for this one anyway! - 08/01/12 04:11 AM

Quote:

Quote:

if you want a great deal on tubular adjustable sway bars for our runners - this is what i found, you can't beat the price!

http://www.sdtrucksprings.com/index.php?main_page=product_info&products_id=16954
http://www.sdtrucksprings.com/index.php?main_page=product_info&products_id=10105


Thanks! I just got f/r Hellwig bars for my Barracuda for 301.96 including shipping.




no problem glad to help a fellow mopar lover out! still the best deals for bars on the net, good quality too..
Posted By: Winchester 73

Re: converting...well, for this one anyway! - 08/11/12 07:07 PM

so you have actually drag raced this car with this engine?if so id like to see what the real diff in et after putting a good handling suspension in a car.i dont know if thats been demonstrated before.
Posted By: TC@HP2

Re: converting...well, for this one anyway! - 08/12/12 12:47 AM

I did something very similar to this once.

I had a reasonably hot, for the time, bracket engine in a dedicated bracket car with the soft front end, 90/10 shock, SS leafs, slicks, lightweight wheels, the whole shebang for bracket racing. This car would run lows twelves @ 105mph.

I transplanted this engine in to a street car that was built to be a handling chassis. It had the requisite subframe conenctors and bracing, bigger t-bars, huge sway bars, gas charged high pressure shocks, XHD leafs and was low to the ground with fat tires all around. It also did drag strip duty and in this set up I was giving up a full second in absolute e.t. and was running 13.2, also at 105mph. At the strip I did swap on the drag slicks and the rear gearing between the two was the same. So while the e.t. was not hugely impacted, something I did notice was that the handling set up was considerably more consistent and my e.t.s tended to not be as variable as the dedicated bracket car was. It also was less sensitive to atmospheric changes and over all was a lot more fun car to bracket race than the dedicated drag car.
Posted By: blue_stocker

Re: converting...well, for this one anyway! - 08/12/12 03:25 PM

While the car weight and most other items will not change, the engine will have a little lower SCR, somewhat milder/street-friendly camshaft and 3.73 vs the 4.56 gearing from what I used in drag race trim. All-n-all, it shoud still make a real 450+ hp at the flywheel and be somewhat respectible in ET slips, even with the totally different suspension. I'm planning a trip to the strip for curiosity sakes so...we wiil see?!
Posted By: PHJ426

Re: converting...well, for this one anyway! - 08/12/12 08:37 PM

I did a similar route with my 72 RR out went the Super Stock leafs and the 4:30 gear.....

In went the XHD leafs and a 2:94 suregrip.

I will eventually get it to the track and see how it goes.

As was mentioned before the mph in the quarter mile will not change much as this is directly related to the horsepower the engine produces. ET differences will be noted with the gear ratio change and the leaf spring and torsion bar rates.

Eventually this year I will get the car to the track and do some testing....
Posted By: Winchester 73

Re: converting...well, for this one anyway! - 08/16/12 03:03 AM

Quote:

I did something very similar to this once.

I had a reasonably hot, for the time, bracket engine in a dedicated bracket car with the soft front end, 90/10 shock, SS leafs, slicks, lightweight wheels, the whole shebang for bracket racing. This car would run lows twelves @ 105mph.

I transplanted this engine in to a street car that was built to be a handling chassis. It had the requisite subframe conenctors and bracing, bigger t-bars, huge sway bars, gas charged high pressure shocks, XHD leafs and was low to the ground with fat tires all around. It also did drag strip duty and in this set up I was giving up a full second in absolute e.t. and was running 13.2, also at 105mph. At the strip I did swap on the drag slicks and the rear gearing between the two was the same. So while the e.t. was not hugely impacted, something I did notice was that the handling set up was considerably more consistent and my e.t.s tended to not be as variable as the dedicated bracket car was. It also was less sensitive to atmospheric changes and over all was a lot more fun car to bracket race than the dedicated drag car.




thanks ive always wondered about that!what was the lbs of the two cars?i think the thinking comes from superimposing how horrible a drag car handles with how a handling car drag races-thats why a lot of peaple think you loose alot at the strip.hten again imagine an 8 second car with a handling suspension swapped in
Posted By: TC@HP2

Re: converting...well, for this one anyway! - 08/16/12 03:24 PM

The handling car was 3250# and the drag car was around 3100#. So using the tenth per 100# estimate, the handling car gave up .25 simply in weight. The other .75 was in the chassis set up and weight distribution.

In the overall scheme of things, since I was running a bracket car and not a class car, loosing a second of e.t. was no big deal as it was as fast as many and faster than some others. What I made up in consistency actually made it a funner car to drive since I could just hop in it, decide what hundredth I need to write down, and away I went.
Posted By: 70blackfish

Re: converting...well, for this one anyway! - 08/17/12 07:48 AM

dont forget about a good road race oil pan, something with trap doors, or what ever it takes to keep the pick up covered under hard cornering.
Posted By: blue_stocker

Re: converting...well, for this one anyway! - 05/26/13 03:23 AM

Well, the conversion project moves along. Installing new poly bushings, new 1.03" T-bars, new ball joints and the new Hellwig 1-1/4" front sway bar today, sheesh what a Behemoth; that sucker dwarfs these 7/8" struts! This bodacious-body car should handle pretty good when completed and that should be mid-June from all indications. This should be interesting with Viper front disc brakes, and the rest of the chassis mods, I'm glad I live in a canyon so the reality of 'canyon carver' will be a whole new meaning for me; old drag racer gone mad and corner-slicing...should be fun!


NOTE: If any of you are considering using this combination of 1-1/4" sway bar and installing the skid pan (E-body and '71-74 B-body cars) that's offered by Mancini, you MUST install the sway bar first as IF you weld the pan on, you will NOT be able to install the bar as it will bind up on the edge of the pan...ask me how I know?!! I ground through the welds, installed the bar and had to reweld after the sway bar was NOW installed...hmm?!! Just a heads-up...wb

Attached picture 7719078-WhaleKwithnewskidpanNSSWAYBAR.JPG
Posted By: 72Swinger

Re: converting...well, for this one anyway! - 05/26/13 04:05 AM

Me and my Dart are both ex-bracket racers, my car is so much more fun to drive now it isnt funny. 6 gears opens a whole new experience.
Posted By: blue_stocker

Re: converting...well, for this one anyway! - 09/10/15 01:53 AM

After all this time, she's just about done. Still have some stickers and lettering to remove and the exhaust pipes, but here she is, street trim. Hmm, should be fun, or so I hope?! For sale very soon...
Posted By: MuuMuu101

Re: converting...well, for this one anyway! - 09/10/15 04:41 AM

Pictures!!!
Posted By: 67SATisfaction

Re: converting...well, for this one anyway! - 09/20/15 04:16 AM

Congrats - and iagree iagree iagree - plus a brief summary of your build, and canyon-carving impressions!
Posted By: blue_stocker

Re: converting...well, for this one anyway! - 04/08/19 04:33 AM

Wow, it's been a while! I've been busy on other projects, helping another guy build his RR clone, engine, chassis and wiring, took me a bit of time, more than expected. I lost traction again, settled into a mess of junk but finally got motivated enough to get my head extracted and got the car running. New chassis, de-tuned the faithful old 440, slipped a 4 spd back in, changed wheel and tire combination (again), etc etc...Here's how she looks now...sits real low.

Attached picture BW-1.jpg
Attached picture BW-2.jpg
Attached picture BW-3.jpg
© 2024 Moparts Forums