LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

bmr or spohn crossmember for my swap

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Old Jan 12, 2013 | 02:37 PM
  #1  
bungy74's Avatar
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From: Stewartsville, NJ
Car: 1992 Camaro Z28
Engine: 5.0 TPI
Transmission: auto
bmr or spohn crossmember for my swap

I want to get one of these crossmembers with a-arms and coil overs. I am liking the BMR, anyone have any tips one way or the other. My 91 z28 is getting ready to accept the ls1/t56 from my 2000 z28. I plan on keeping the ls1 a/c and using Hawks long tubes.
thanks,
guys.
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Old Jan 12, 2013 | 03:01 PM
  #2  
Twin_Turbo's Avatar
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From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: bmr or spohn crossmember for my swap

Of those, I would choose the BMR hands down.
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Old Jan 13, 2013 | 11:20 AM
  #3  
Pocket's Avatar
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Car: 91 Trans Am
Re: bmr or spohn crossmember for my swap

I have a Spohn and wouldnt recommend it to anyone
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Old Jan 13, 2013 | 11:25 AM
  #4  
bungy74's Avatar
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From: Stewartsville, NJ
Car: 1992 Camaro Z28
Engine: 5.0 TPI
Transmission: auto
Re: bmr or spohn crossmember for my swap

yea, i read the problems you encountered on your latest build, and i have had issues of my own with their d/s loop. thanks for the info
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Old Jan 13, 2013 | 01:09 PM
  #5  
Rich92 RS's Avatar
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From: Crestview, Florida
Car: 86 IROC-Z, 98 Z28
Engine: 370 LSx, LS1
Transmission: T56's
Axle/Gears: 3.73, 3.42
Re: bmr or spohn crossmember for my swap

Originally Posted by Pocket
I have a Spohn and wouldnt recommend it to anyone
What he said.
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Old Jan 13, 2013 | 02:13 PM
  #6  
bungy74's Avatar
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From: Stewartsville, NJ
Car: 1992 Camaro Z28
Engine: 5.0 TPI
Transmission: auto
Re: bmr or spohn crossmember for my swap

The BMR is going on my car, after reading many threads on here and hearing a few other horror stories about the other, my mind is made up.

thanks guys !
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Old Jan 13, 2013 | 08:05 PM
  #7  
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From: Calgary, Alberta, Canada
Car: 89 WS6 TransAm
Engine: LQ408
Transmission: T56 Magnum
Axle/Gears: Strange S60, 4.10s
Re: bmr or spohn crossmember for my swap

BMR, as long as you going with the stock clam shell mounts. If you go with solid motor mounts on the block, you have no wiggle room to get things lined up due to there solid mounting point on the K member. I tried to no avail and ended up going with the stock mounts.

All accessories including A/C clear just fine and no steering link clearance issues.

BMR K member should be used with BMR A Arms, or the K-member may need to be clearanced, depending on A Arms used. I had Spohn A Arms before the BMR K member and had to modify the K member to get the A Arms to clearance at full squat. Can be done, but with mods.

Last edited by HP52TA; Jan 13, 2013 at 08:09 PM.
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Old Jan 13, 2013 | 08:26 PM
  #8  
bungy74's Avatar
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From: Stewartsville, NJ
Car: 1992 Camaro Z28
Engine: 5.0 TPI
Transmission: auto
Re: bmr or spohn crossmember for my swap

yea i plan to use the stock mounts but with the poly bushings. Also i am glad to know that a/c and all clears. I will be using BMR arms and coil over kit.
thanks for the info
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Old Jan 13, 2013 | 08:44 PM
  #9  
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From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: bmr or spohn crossmember for my swap

A little grinding on the solid mounts, making holes into slots and it drops right in. I do agree that the jigging could be a little better since I had to shim up some stuff here and there, mainly gaps on bushings.

Last edited by Twin_Turbo; Jan 14, 2013 at 07:49 AM.
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Old Jan 13, 2013 | 11:50 PM
  #10  
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From: Lawrence KS
Car: 91 z28
Engine: LS1
Transmission: 4L60e
Axle/Gears: 10 bolt 3.42
Re: bmr or spohn crossmember for my swap

BMR
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