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> V8 Conversion Owners...what springs?, Looking to stiffen my ride!
streetrover
post Oct 15 2011, 09:45 PM
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Took my "in progress" v8 conversion out for a spin the other day. 4.0 liter aluminum v8 from Range Rover. Ran strong but stock suspension was very spongy. Felt like driving mom's Buick. What have you done to retain the wonderful stiffness and handling of the original 914?
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stewteral
post Oct 15 2011, 10:53 PM
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QUOTE(streetrover @ Oct 15 2011, 08:45 PM) *

Took my "in progress" v8 conversion out for a spin the other day. 4.0 liter aluminum v8 from Range Rover. Ran strong but stock suspension was very spongy. Felt like driving mom's Buick. What have you done to retain the wonderful stiffness and handling of the original 914?


Hey Streetover,

I've spend a LOT of time over the 8 years understanding the chassis & developing my 383 Chevy conversion car. With BIG help from AndyS, I now have a very good handling track car and would like to see if I can help with your setup.

First off, Using an all ALU engine is a great move , not only on a lot less weight than what I'm lugging around, but also less weight up high that creates body roll. The chassis was designed around a LOW CG engine and low roll. When there is a lot of roll, the suspension does bad things.

To start, we need review what your chassis is now: Frnt torsion & swaybar and the same for the rear. With that info, I can compare your settings to mine and offer suggestions what changes to make to achieve a good balance. I've made a wheel rate calculation spreadsheet that will allow you to plug in different torsion bar, swaybar and coil spring values to see the overall wheel rates at each end of the car.

I'm betting one of the first changes needed will be increaseng your rear spring rates significantly. When first running the track will "soft" rear springs, I had NOTHING but huge understeer! UGH!

Shocks are also quite important. I'm running Koni sport struts in front and special built Koni dual-adjustable in the rear. I'm guessing you're planning to use your car as a daily driver so Bilsteins or the Koni Sport shocks will serve you well. I believe the Bilsteins will give a softer ride.


BTW, I'm just up the 101 in Camarillo, so communicating should be pretty easy.

Best of luck,
Terry
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Posts in this topic
streetrover   V8 Conversion Owners...what springs?   Oct 15 2011, 09:45 PM
Bruce Hinds   It's been a while, I don't trust my memory...   Oct 15 2011, 10:18 PM
jimkelly   someone here talked about this set up recently but...   Oct 15 2011, 10:20 PM
kg6dxn   I used 180lb progressive springs on my last one an...   Oct 15 2011, 10:24 PM
stewteral   Took my "in progress" v8 conversion out...   Oct 15 2011, 10:53 PM
914junkie   200lb Eibach springs with Koni adjustable shocks o...   Oct 16 2011, 03:18 AM
rick 918-S   180 progressive rears. I need to add a rear bar bu...   Oct 16 2011, 07:07 AM
computers4kids   Took my "in progress" v8 conversion out...   Oct 16 2011, 09:00 AM
Andyrew   On the street 180s if you want a cushy/safe ride, ...   Oct 16 2011, 09:19 AM
sean_v8_914   this can not be answered well until you tell us ho...   Oct 16 2011, 10:55 AM
stewteral   this can not be answered well until you tell us h...   Oct 16 2011, 11:50 AM
stewteral   Took my "in progress" v8 conversion out...   Oct 16 2011, 11:48 AM
Andyrew   Im not sure I would recommend 22 front tbars on a ...   Oct 16 2011, 12:09 PM
stewteral   Im not sure I would recommend 22 front tbars on a...   Oct 17 2011, 09:59 PM
Bruce Hinds   All that discussion on spring rate is interesting,...   Oct 17 2011, 10:41 PM
stewteral   All that discussion on spring rate is interesting...   Oct 18 2011, 12:50 PM
Bruce Hinds   All that discussion on spring rate is interestin...   Oct 18 2011, 01:52 PM
stewteral   [quote name='stewteral' post='1556961' date='Oct ...   Oct 18 2011, 10:41 PM
Bruce Hinds   Bruce, Trailing throttle oversteer, now that is a...   Oct 19 2011, 10:38 AM
messix   all you guys are quoting spring rates for a iron s...   Oct 17 2011, 10:50 PM
streetrover   Great feedback so far! Generally this car is ...   Oct 17 2011, 11:01 PM
stewteral   Great feedback so far! Generally this car is...   Oct 18 2011, 01:05 PM
messix   front t/bars run thru the arms front to back. str...   Oct 17 2011, 11:14 PM
Andyrew   Bob, Im going to reiterate my statement earlier. ...   Oct 18 2011, 01:01 PM


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