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qa1 k frame #1863248 07/04/15 01:37 AM 07/04/15 01:37 AM
Joined: Feb 2009 Posts: 342 dracut mass usa S sparcy OP enthusiast
sparcy OP enthusiast S Joined: Feb 2009 Posts: 342 dracut mass usa	qa1 k frame worth the money ? for a 69 charger , my lower control arm pin mounts in k frame are all cracked !!BROKEN << IVE fixed all my buddys cars 3 to b exact . just thinking time for more room around headers and less flex . anyone using one ?? i have a firm feel box and tubular upper control arms and all the other stuff !! IF YOU ARE NOT WRECKING STUFF YOU ARE NOT LEARNING !

Re: qa1 k frame [Re: sparcy] #1863495 07/04/15 01:22 PM 07/04/15 01:22 PM
Joined: Dec 2003 Posts: 22,695 Bitopia J jcc If you can't dazzle em with diamonds..
jcc If you can't dazzle em with diamonds.. J Joined: Dec 2003 Posts: 22,695 Bitopia	Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.

Re: qa1 k frame [Re: sparcy] #1863557 07/04/15 02:20 PM 07/04/15 02:20 PM
Joined: Sep 2007 Posts: 14,889 up yours Supercuda About to go away
Supercuda About to go away Joined: Sep 2007 Posts: 14,889 up yours	There is no triangulation in the QA1 crossmember. It's all right angles, the factory K frame is triangulated. You won't be getting less flex and lighter weight, it'll be either or. Straight line racer, probably not an issue, anything else is an issue. They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.

Re: qa1 k frame [Re: sparcy] #1863593 07/04/15 03:22 PM 07/04/15 03:22 PM
Joined: Jan 2012 Posts: 1,541 USA H hudsonhornet7x pro stock
hudsonhornet7x pro stock H Joined: Jan 2012 Posts: 1,541 USA	What improvements would you make to make the QA1 less flexy?

Re: qa1 k frame [Re: sparcy] #1863596 07/04/15 03:29 PM 07/04/15 03:29 PM
Joined: Jan 2003 Posts: 5,387 Pikes Peak Country T TC@HP2 master
TC@HP2 master T Joined: Jan 2003 Posts: 5,387 Pikes Peak Country	QA1 guys have been on here in the past describing this product and they have admitted that it is not hugely lighter than a stock frame, maybe only a few pounds, but is measureably more rigid than stock. Despite not having much triangulation, it does have very short runs of round tube which provides the strength. Any changes you perform to it will add weight and make it weigh more than stock.

Re: qa1 k frame [Re: sparcy] #1863643 07/04/15 04:23 PM 07/04/15 04:23 PM
Joined: Sep 2007 Posts: 14,889 up yours Supercuda About to go away
Supercuda About to go away Joined: Sep 2007 Posts: 14,889 up yours	http://www.qa1.net/media/catalog/product...dy-k-member.png I see zero triangulation. In order to make this as strong as a triangulated K member you have to build it stouter, raising the weight. What I would have done, using the above link as a reference, would have been to take the second cross bar and make it an arc rather than a straight piece. Each end of the arc would have ended up in the same place as the straight piece (or further aft even) and the center would have been tied to the front straight piece. Look at the stock triangulation, they tie the lower pivots together, something QA1 does not do http://www.engine-swaps.com/Photos4Website/TechInfoPics/KMember_Photos/KMember%20BE%20Hemi.jpg They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.

Re: qa1 k frame [Re: sparcy] #1864050 07/05/15 12:33 AM 07/05/15 12:33 AM
Joined: May 2012 Posts: 841 Santa Fe Springs, CA Dan@Hotchkis super stock
Dan@Hotchkis super stock Joined: May 2012 Posts: 841 Santa Fe Springs, CA	Somebody buy one and do some tests like the US Car Tool guys did!

Re: qa1 k frame [Re: sparcy] #1864057 07/05/15 12:48 AM 07/05/15 12:48 AM
Joined: Jan 2012 Posts: 1,541 USA H hudsonhornet7x pro stock
hudsonhornet7x pro stock H Joined: Jan 2012 Posts: 1,541 USA	Where can I find results of the USCartool tests?

Re: qa1 k frame [Re: hudsonhornet7x] #1864073 07/05/15 01:16 AM 07/05/15 01:16 AM
Joined: Nov 2003 Posts: 3,577 Long Island, NY USA B BergmanAutoCraft master
BergmanAutoCraft master B Joined: Nov 2003 Posts: 3,577 Long Island, NY USA	Originally Posted By hudsonhornet7x Where can I find results of the USCartool tests? This is funny. They used a floor jack to copy the real surface plate testing done by XV.

Re: qa1 k frame [Re: sparcy] #1864143 07/05/15 08:26 AM 07/05/15 08:26 AM
Joined: Jan 2003 Posts: 3,575 The Netherlands BigBlockMopar master
BigBlockMopar master Joined: Jan 2003 Posts: 3,575 The Netherlands	Without much schooled structural knowledge, my main 'concerns' with the QA1 K-member could be the 2 front vertical tubes where the K-member mounts to the framerails, which would seemingly necessitate longer front bolts. Also the tubes have a smaller contactpatch on the frame. And I would maybe add some simple horizontal gussets in the rearcorners of the 2nd crosstube. Maybe add a downward gusset to the pass.side engine mountpad since the engine is pushing on that pad most of the time. Then again, pesonally I would think anyone really concerned about rigidity will simply weld the entire (stock or aftermarket) K-member to the framerails and not rely on 4 bolts holding the entire front suspension to the car. Anyone know if this has actually been done before? BigBlockMopar.com

Re: qa1 k frame [Re: BigBlockMopar] #1864230 07/05/15 12:44 PM 07/05/15 12:44 PM
Joined: Dec 2003 Posts: 22,695 Bitopia J jcc If you can't dazzle em with diamonds..
jcc If you can't dazzle em with diamonds.. J Joined: Dec 2003 Posts: 22,695 Bitopia	Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.

Re: qa1 k frame [Re: sparcy] #1864296 07/05/15 02:31 PM 07/05/15 02:31 PM
Joined: Mar 2003 Posts: 18,678 Fresno, CA Jim_Lusk I Live Here
Jim_Lusk I Live Here Joined: Mar 2003 Posts: 18,678 Fresno, CA	A B-body K-member is only a little heavier than the 35lb A-body K-member. It's hard to get much lighter than that. The LCA pin tubes were underwelded from the factory. This is a 73-76 A-body K that I took apart to straighten and add reinforcements to the inside. You can't get to this area without cutting the K-member open (a small area, perhaps 2" x 2" would suffice).

Re: qa1 k frame [Re: Jim_Lusk] #1864623 07/05/15 10:22 PM 07/05/15 10:22 PM
Joined: Feb 2009 Posts: 342 dracut mass usa S sparcy OP enthusiast
sparcy OP enthusiast S Joined: Feb 2009 Posts: 342 dracut mass usa	just got home from NY being on the road gets old , weight is not my concern so much , its a hot rod corner carver , I CALL IT ha ha ha !!! my daily driver is a 2007 magnum . I m trying to make my 1969 charger handle and stop close LOL !! all my friends have 69 chargers 3 , and they all want there cars to drive like mine . very happy with my car ,, but now i got the broken pin mounts so I'm thinking .. buy a q a 1 or get a factory one cut it apart and weld my butt off !! I think q a1 is a little pricey I have the $ in my slush fund aka car fund !!! MAXWELLHOUSE CAN IN CELLAR !! I weld up rusted plow trucks and sanders when I'm not runnig 10,000 ton trains . I would add gussets to qa1 and bars , spend 700 plus delivered and have to add to it is a joke !!! and I will weld it to car !! GRADE 8 BOLTS AND WELD IT !! I'm going to get a clean factory k and cut it up !!! I THNK its my destiny HAHA ha !!! IF YOU ARE NOT WRECKING STUFF YOU ARE NOT LEARNING !

Re: qa1 k frame [Re: sparcy] #1864864 07/06/15 02:06 AM 07/06/15 02:06 AM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog Striving for excellence
Kern Dog Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	Originally Posted By sparcy just got home from NY being on the road gets old , weight is not my concern so much , its a hot rod corner carver , I CALL IT ha ha ha !!! my daily driver is a 2007 magnum . I m trying to make my 1969 charger handle and stop close LOL !! all my friends have 69 chargers 3 , and they all want there cars to drive like mine . very happy with my car ,, but now i got the broken pin mounts so I'm thinking .. buy a q a 1 or get a factory one cut it apart and weld my butt off !! I think q a1 is a little pricey I have the $ in my slush fund aka car fund !!! MAXWELLHOUSE CAN IN CELLAR !! I weld up rusted plow trucks and sanders when I'm not runnig 10,000 ton trains . I would add gussets to qa1 and bars , spend 700 plus delivered and have to add to it is a joke !!! and I will weld it to car !! GRADE 8 BOLTS AND WELD IT !! I'm going to get a clean factory k and cut it up !!! I THNK its my destiny HAHA ha !!! Uhhh... did you go off your meds?

Re: qa1 k frame [Re: sparcy] #1864955 07/06/15 11:07 AM 07/06/15 11:07 AM
Joined: Dec 2003 Posts: 22,695 Bitopia J jcc If you can't dazzle em with diamonds..
jcc If you can't dazzle em with diamonds.. J Joined: Dec 2003 Posts: 22,695 Bitopia	Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.

Re: qa1 k frame [Re: sparcy] #1865074 07/06/15 02:05 PM 07/06/15 02:05 PM
Joined: Jan 2011 Posts: 4,785 Utah and Alaska astjp2 master
astjp2 master Joined: Jan 2011 Posts: 4,785 Utah and Alaska	So you want to weld up your "K" frame to sheetmetal frame members? Go ahead and when it cracks, let us know what else broke... 1941 Taylorcraft 1968 Charger 1994 Wrangler 1998 Wrangler 2008 Kia Rio 2017 Jetta I didn't do 4 years and 9 months of Graduate School to be called Mister!

Re: qa1 k frame [Re: sparcy] #1946316 11/06/15 02:50 PM 11/06/15 02:50 PM
Joined: Feb 2014 Posts: 655 Huntsville, AL A Airwoofer mopar
Airwoofer mopar A Joined: Feb 2014 Posts: 655 Huntsville, AL	I have an idea how you can fix your problem. I was gonna do it to my KOS Demon but instead I just beefed up the K frame where the pivot goes through with a washer welded on the front side. You can cut out the stock K frame tube with a 1 1/4" hole saw and put in 1.25OD CM and from the other side put in 1" OD, 3/4" ID tubing and weld those to the K frame. Then use a HDK tubular control arm with .750 OD section that goes through the K frame. These HDK LCAs go with his tubular UCAs and upper shock mount. Then add coil overs and lose the torsion bars. He is shipping kits now. A lot lighter than the stock LCA for sure. I am doing this to my KOS Demon right now. Give Denny a shout at: hemidenny@rocketmail.com

Re: qa1 k frame [Re: sparcy] #1946970 11/07/15 03:15 PM 11/07/15 03:15 PM
Joined: Jan 2006 Posts: 797 WA P pro451bee super stock
pro451bee super stock P Joined: Jan 2006 Posts: 797 WA	The Qa1 frame looks to be much stronger at the control arm load point and a large flat at the rear most frame bolt points where the wheel load is transferred to body.Also the tubing appears as thick as a well made class 3 hitch.By comparison the stock frame is a thin stamping with poor control arm pin retention area unless re welded with gussets.Ditto for the steering box mount. The vertical front tube , frame bolt design looks to me as similar to adding a front radiator brace , greatly stiffening the front uni-body twist.A mod to stiffen the front uni-body such as 14 or 12 gauge steel ,Rosette welded to the entire run of the front frame rails , before mounting K frame would greatly stiffen front end of car.

Re: qa1 k frame [Re: pro451bee] #1947206 11/07/15 10:12 PM 11/07/15 10:12 PM
Joined: Nov 2003 Posts: 3,577 Long Island, NY USA B BergmanAutoCraft master
BergmanAutoCraft master B Joined: Nov 2003 Posts: 3,577 Long Island, NY USA	Originally Posted By pro451bee The Qa1 frame looks to be much stronger at the control arm load point and a large flat at the rear most frame bolt points where the wheel load is transferred to body.Also the tubing appears as thick as a well made class 3 hitch.By comparison the stock frame is a thin stamping with poor control arm pin retention area unless re welded with gussets.Ditto for the steering box mount. The vertical front tube , frame bolt design looks to me as similar to adding a front radiator brace , greatly stiffening the front uni-body twist.A mod to stiffen the front uni-body such as 14 or 12 gauge steel ,Rosette welded to the entire run of the front frame rails , before mounting K frame would greatly stiffen front end of car. The couple of street cars I've seen with the QA1 frame give up ground clearance. I see the strut rod mount cantilevering off the front tube. Personally, I'd think this was designed as a drag race piece.

Re: qa1 k frame [Re: BergmanAutoCraft] #1950331 11/13/15 02:46 AM 11/13/15 02:46 AM
Joined: Nov 2007 Posts: 305 5th and plum R redmist enthusiast
redmist enthusiast R Joined: Nov 2007 Posts: 305 5th and plum	I think I am going to pull the trigger on one of these K-members. I am concerned with the tabs for the strut bars more than anything. I am trying to figure out a way to test flex between it and a stock K member. Any ideas??

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