Does anyone make or sell K member spacers
01-12-2015, 09:14 AM
#2
You shouldn't do it at all but we have sold spacers in the past when big down pipes became popular and people already had aftermarket k-members.. How low do you want to drop it?
03-11-2015, 10:07 AM
#5
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I've been wondering this as well. I know Hawk's has been doing TVS2300 units on f-bodys with a combination of spacers and notching the cowl. I've been wondering what drop would be required to get Magnuson's new Heartbeat supercharger to fit. What all issues can arise from lifting the body like this? I'm thinking of pinion angles and transmission mounts specifically. Maybe some steering linkage interference? Is there a known maximum before having issues on these cars? I haven't seen much data about this for these cars. I'd love to have a roots in my WS6.
03-11-2015, 05:15 PM
#6
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When GM swapped the LS9 into one of their fbodys they used spacers on the k-member. I'm sure you could find more details on the car somewhere, it was posted on this site a while ago. The car is jet stream blue.
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03-12-2015, 02:17 PM
#8
Aside from the obvious things like steering shaft length, you will also run into problems with bumpsteer and alignment. You will be changing the mounting distance between the upper and lower control arms which will changer their angle in relation to each other and the spindle. This will meant that the control arms will be at different angles in their arc of travel at ride height, and will make caster and camber changes irregularly throughout the range of travel. Also since the rack mount to the k-member, it will change your toe-rod angle and cause bumpsteer issues. These things won't be very noticeable if you do 1/8-1/4", but if you go any farther you may start getting some ill effects. Again, I would advise against it. I made this for another discussion, and rings true again here:
03-13-2015, 01:23 PM
#9
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Aside from the obvious things like steering shaft length, you will also run into problems with bumpsteer and alignment. You will be changing the mounting distance between the upper and lower control arms which will changer their angle in relation to each other and the spindle. This will meant that the control arms will be at different angles in their arc of travel at ride height, and will make caster and camber changes irregularly throughout the range of travel. Also since the rack mount to the k-member, it will change your toe-rod angle and cause bumpsteer issues. These things won't be very noticeable if you do 1/8-1/4", but if you go any farther you may start getting some ill effects. Again, I would advise against it. I made this for another discussion, and rings true again here:
And I did find that article where GMPP put an LS9 in a 2000 Camaro. They too used a 1/4" spacer and notched the cowl. I believe they also had to use some modified wiper blade motors etc. However, the LS9 blower is way taller than the Heartbeat. I haven't been able to find any exact specs on it yet. One thread on ls1tech said it's 1&7/8" taller than an LS3 intake.
03-13-2015, 08:56 PM
#10
Exactly what I was worried about. I think Hawk's did a 1/4" spacer and notched the cowl. I'm really surprised not more people are motivated to get a maggie in their f-body. Some day... I wouldn't be willing to do more than a 1/4" spacer. Nobody has messed with these Heartbeat superchargers on an F-body yet???
And I did find that article where GMPP put an LS9 in a 2000 Camaro. They too used a 1/4" spacer and notched the cowl. I believe they also had to use some modified wiper blade motors etc. However, the LS9 blower is way taller than the Heartbeat. I haven't been able to find any exact specs on it yet. One thread on ls1tech said it's 1&7/8" taller than an LS3 intake.
And I did find that article where GMPP put an LS9 in a 2000 Camaro. They too used a 1/4" spacer and notched the cowl. I believe they also had to use some modified wiper blade motors etc. However, the LS9 blower is way taller than the Heartbeat. I haven't been able to find any exact specs on it yet. One thread on ls1tech said it's 1&7/8" taller than an LS3 intake.
As far as the LS9 being way taller than the heartbeat I seriously doubt that. I haven't measured a heartbeat but i can't see there being much of a difference. If anything the LS9 blower might be shorter due to the smaller IC bricks.
03-14-2015, 05:36 AM
#11
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You have to cut your hood up too? Keeping wipers?
03-14-2015, 11:22 AM
#13
If I run that one it'll fit so much easier than the 1900. But wanted for a different project. As for the coolant inlets, not sure what the previous owner was thinking but he modified them. Will have to cut the end off and weld straight inlets.
Last edited by supermaro; 03-14-2015 at 03:54 PM.
07-07-2015, 02:34 AM
#17
Been tied up with work and the other projects. Finally installed the engine and decided to mock up both blowers. Still can't decide one which blower to run. Still have to install the line lock and abs elimination kit. Along with eliminate cruise control. Should be running and tuned before the end of the month.
