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Re: Lots of shock questions lately [Re: Monte_Smith] #1699991
11/19/14 03:22 PM
11/19/14 03:22 PM
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So how much does a set of 4 Santhuffs cost? Rear coilovers, and fronts for stock suspension. Their web site isn't much help.

Jeff


69 GTX 68 Road Runner
Re: Lots of shock questions lately [Re: JERICOGTX] #1699992
11/19/14 05:28 PM
11/19/14 05:28 PM
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North Sweden
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My chassi got Lamb front struts from -95 and came from Haas with double adjust. Konis back.
Last owner changed rear to Santhuff and they hade recently been back to Santhuff for a rebuild and came with a protocol.

8336104-Santhuff.jpg (253 downloads)
Re: Lots of shock questions lately [Re: RT540] #1699993
11/19/14 09:36 PM
11/19/14 09:36 PM
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Monte_Smith Offline OP
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You guys looking for shocks and prices just need to call Mark Roth if you are interested in Santhuffs and Mark Menscer or AFCO direct if that is your choice.

The reason is........a shock is NOT a shock. Even in GOOD D/A shocks, the intended purpose of the car comes into play. We call most GOOD race shocks "double adjustable" but shocks really have 4 adjustments that can be made to them. There is a high and low speed rebound and a high and low speed extension. Since drag cars don't see varying track conditions like a round track car, having all 4 externally adjustable is not needed...........BUT, the power level and type suspension used, will dictate where in the valving the low speed takes over from the high.

High speed valving is defined as hitting the shock hard and fast, such as at launch. Low speed is usually down track to absorb bumps. Since shocks are very sensitive to velocity, the type suspension and power level greatly comes into play on choosing a valving. Power and a violent suspension setup, like a ladder bar, will require the high speed to be very sensitive, very quick, to control the housing. Lesser power and lesser aggressive suspension, like leafs, will change the transition point in the valving.

All this is why a "serious" guy should not just pick up the phone and order some shocks from Jegs

Monte

Re: Lots of shock questions lately [Re: Monte_Smith] #1699994
11/19/14 10:52 PM
11/19/14 10:52 PM
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Just spoke with Eric today over at Afco and got the 411 on the part numbers, price and valving along with ext and compression figures.
Should have them in a week or so. Aluminum at that and they weigh 4-1/2 Lbs.
He has suggested certain settings as a start point and go from there depending on track conditions and so forth.
Painting them black to make 'em disappear within the chassis.

Re: Lots of shock questions lately [Re: JERICOGTX] #1699995
11/20/14 08:16 AM
11/20/14 08:16 AM
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The rears retail for $1210 a pair and the fronts are $1000 retail. I can save you quite a bit of money over those prices though. Mike


MR2PERFORMANCE RACE CARS 765 483 9371
Re: Lots of shock questions lately [Re: FlyFish] #1699996
11/20/14 09:00 AM
11/20/14 09:00 AM
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weymouth,mass.
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so on the strange coil over shocks, they have a weight to select beside the coil, what this for? i want a pair fpr the front and rear of my 70 runner, 535 stroker, so if someone can explain what the diffrent weights mean? ex.200lbs 350lbs ect. thank you.

Re: Lots of shock questions lately [Re: mr2performance] #1699997
11/20/14 12:40 PM
11/20/14 12:40 PM
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Quote:

The rears retail for $1210 a pair and the fronts are $1000 retail. I can save you quite a bit of money over those prices though. Mike




Thanks Mike.

You have a PM.

Jeff


69 GTX 68 Road Runner
Re: Lots of shock questions lately [Re: Monte_Smith] #1699998
11/20/14 01:35 PM
11/20/14 01:35 PM
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Indianapolis In. usa
Quickrunner Offline
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Quote:

You guys looking for shocks and prices just need to call Mark Roth if you are interested in Santhuffs and Mark Menscer or AFCO direct if that is your choice.

The reason is........a shock is NOT a shock. Even in GOOD D/A shocks, the intended purpose of the car comes into play. We call most GOOD race shocks "double adjustable" but shocks really have 4 adjustments that can be made to them. There is a high and low speed rebound and a high and low speed extension. Since drag cars don't see varying track conditions like a round track car, having all 4 externally adjustable is not needed...........BUT, the power level and type suspension used, will dictate where in the valving the low speed takes over from the high.

High speed valving is defined as hitting the shock hard and fast, such as at launch. Low speed is usually down track to absorb bumps. Since shocks are very sensitive to velocity, the type suspension and power level greatly comes into play on choosing a valving. Power and a violent suspension setup, like a ladder bar, will require the high speed to be very sensitive, very quick, to control the housing. Lesser power and lesser aggressive suspension, like leafs, will change the transition point in the valving.

All this is why a "serious" guy should not just pick up the phone and order some shocks from Jegs

Monte




Best explanation I have seen on this board! People dont realize how involved every aspect of a purpose build drag car really is, or should be! Hats off to you Monte


05 Ram 1500 Daytona package
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Missin' my 9 second 70 runner!
Re: Lots of shock questions lately [Re: Quickrunner] #1699999
11/21/14 05:04 AM
11/21/14 05:04 AM
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Great thread, Thanks Monty! Have a question, our car is a 540 hemi with a F-3 in a duster. made 1600hp with our small pulley and 1200tq question is car currently has 10 inch da konis on the front but I was thinking of switching to a 12 inch shock for ground clearance (5 inch exhaust) Right now leaning towards the santhufs based on this thread, is the extra travel going to hurt or help us or should we be able to tune it either way?

Re: Lots of shock questions lately [Re: nitrousr] #1700000
11/21/14 10:17 AM
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Quote:

Great thread, Thanks Monty! Have a question, our car is a 540 hemi with a F-3 in a duster. made 1600hp with our small pulley and 1200tq question is car currently has 10 inch da konis on the front but I was thinking of switching to a 12 inch shock for ground clearance (5 inch exhaust) Right now leaning towards the santhufs based on this thread, is the extra travel going to hurt or help us or should we be able to tune it either way? [/quote

We can limit the travel in the shock internally if need be. You're not going to need the extra travel. Mike


MR2PERFORMANCE RACE CARS 765 483 9371
Re: Lots of shock questions lately [Re: Monte_Smith] #1700001
11/21/14 05:38 PM
11/21/14 05:38 PM
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Good thread.


Mopar Performance
Re: Lots of shock questions lately [Re: moparniac] #1700002
11/22/14 11:01 PM
11/22/14 11:01 PM
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If anybody is interested or ever has questions about Penske Racing Shocks let me know. I split my time currently between the drag race and NASCAR shocks at Penske. Our shocks are custom made for every car. Everything is hand built to customer specs. Everything is dynoed before it is shipped and every shock matches. We have a huge data base. Also currently all Pro Stock cars run Penske Shocks. I bracket race and I think we all know how much varying 60' times can be the difference in a first round loss or a final round appearance. I think the information in this post is good. I will never bash another shock companies product. If anybody has questions just PM me.


Competitive Suspension Solutions
Re: Lots of shock questions lately [Re: Sweigart1022] #1700003
11/29/14 01:05 PM
11/29/14 01:05 PM
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ohio
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Re: Lots of shock questions lately [Re: all spooled up] #1700004
11/29/14 06:49 PM
11/29/14 06:49 PM
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I tried the jack trick on mine when I was winterizing it. My Koni's failed miserably. I think they are single adjustable. Is the single adjustment for compression or extension?


Jim

Re: Lots of shock questions lately [Re: Bigcube] #1700005
11/30/14 05:47 AM
11/30/14 05:47 AM
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Monte

Re: Lots of shock questions lately [Re: onig] #1700006
11/30/14 08:05 AM
11/30/14 08:05 AM
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Quote:

when you leave it is likely headed straight to limiter and or topping out shock........which immediately stops weight transfer at THAT point.

Why does the weight transfer stop at that point?
Is it because the front now has the added weight of the wheels and suspension parts that it needs to lift?



As I understand it, suddenly stopping front rise sends a shock wave of sorts back through the chassis, and that shock wave tries to lift the back tires off the track. It can be very mild, or in the case of a violent leaving car with way too much weight transfer, enough to create spin.


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Re: Lots of shock questions lately [Re: gregsdart] #1700007
11/30/14 10:11 AM
11/30/14 10:11 AM
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robin hood country
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Can this be controlled to a certain extent by adjusting launch rpm, for e.g loading the converter as opposed to flashing it.
Mick


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Re: Lots of shock questions lately [Re: deaks] #1700008
11/30/14 10:55 AM
11/30/14 10:55 AM
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dvw Online content
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As the car leaves it pitch rotates. While this is happening the stored energy in the front spring/torsion bar is being used up. This energy diminishes until the suspension is at the end of its travel. The trick is to adjust the rebound so that the limit is never reached. Load transfer stops once the front wheels are off the ground as far as body weight is concerned. The other suspension factor controlling load now is rear housing control. Of course there is still the issue of pitch rotation. Is the car coming back down, staying neutral, or still going up?
Doug

Re: Lots of shock questions lately [Re: dvw] #1700009
12/23/14 08:06 PM
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Monte,

If you have 90\10s or 3 ways on the front and single adj on the back, you can only afford to buy 2 shocks, which one do you replace


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Re: Lots of shock questions lately [Re: sixpackgut] #1700010
12/23/14 08:14 PM
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