Thread: Narrowed C4 IRS....camber questions

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Looks good so far! I've always like the looks of an IRS on a Hot Rod, and the C4 setup looks like it will lend itself quite well to Hot Rod use! Some very nice work getting things put in their proper place! Should work great when it's all together.

Originally Posted by Dave Severson

Looks good so far! I've always like the looks of an IRS on a Hot Rod, and the C4 setup looks like it will lend itself quite well to Hot Rod use! Some very nice work getting things put in their proper place! Should work great when it's all together.

Thanks Dave. I'll try to make a generalized 'How To' later when I know everything is right.......requesting and/or expecting everyones input for any possible mistakes I have made of coarse. For instance.....the most important measurement on the whole thing.....the angle of the trailing link braket in factory form is 59-60 degrees. I think it can be fudged slightly with less or more as I have seen pictures...but that will depend on where a persons center of gravity (center point of vehicle) and what type of launch they expect....kind of getting back to dragracing set-ups....but I feel it can help a road set-up as well. In my case....I dont know where my the center point of my vehicle is....but...I know it should be fairly low (similar to a vette) (most of my weight will be lower than factory with the addition of x-braces and suspension add-ons) and further back than factory (aluminum LS pushed further into cab area). As I remember you want the center point of the suspension links (meet point of the triangluar links) to be ahead of your center of gravity to keep weight transfer low.....and above the center of gravity to allow more weight transfer to the back wheels. Darn......I wish I could find my DoorSlammers book. I've seen some of these set-up with the triangular links aimed waaaaayyyyy up and I wouldnt think on a street vehicle you would want that much weight transfer.....I'm really not sure what they were expecting Maybe that was the only way they could make the set-up work.

So Dave.....today much cooler up your way??? I woke up to 67 degrees this morn....time to start hacking away.... Have a good day and stay safe.

Thanks,
Dave G