• 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
suspension
#1
Not sure if this is the right forum or not. Need some advice on suspension set up from the dragracers here. I need to improve my 60' times. The car is running anywher from 2.160 to 1.919. The front sway bar is off and I am running a set of 90/10 shocks in front. The car is set up with frame connectors and a set of lakewoods, and 456 gearing on BF Goodrich 27" tall drag radials.
Anyone have any advice for bringing these time down to at least a 1.6 60' ?
BTW there is no wheel slip.
Jim

drive it like you stole it
  Reply
#2
What type of Lakewoods are you using?

[Image: 2zdx09d.png]
Yea,Tho i cruise through the valley of the shadow of rice,I will fear no Turbo,For Torque art with me.Thy rods and crankshaft,they comfort me. Big Grin Robert
  Reply
#3
thundertc64;42770 Wrote:What type of Lakewoods are you using?

The ones that hook up to the rear springs.
Jim

drive it like you stole it
  Reply
#4
Something you might try is a lighter front spring. I have better luck with lift bars over regular traction bars

[Image: 2zdx09d.png]
Yea,Tho i cruise through the valley of the shadow of rice,I will fear no Turbo,For Torque art with me.Thy rods and crankshaft,they comfort me. Big Grin Robert
  Reply
#5
Go to the CalTrac bars and a set of adjustable rear shocks. That'll handle the rear. Free up the front suspension as much as possible. Roller spring perches Adjustable shocks and rod end strut rods are a good start.

Jeff T.

Low buck, touring style, '73 Convertible "rolling restoration", 351c, 2v heads with a shave and a haircut, Performer intake, Holley 650(ish), roller rockers, screw in studs, guideplates, stainless valves, Duraspark / Motorsports MSD, T-5 conversion. 1-1/8" front, 3/4" rear swaybars KYB shocks and some home brewed subframe connectors. Future plans; JGC steering box, Cobra brakes and... paint, interior, etc.

When I die I want to die like grandpa, peacefully in my sleep... not screaming, like his passenger.

[Image: 1_12_09_14_10_15_11.png]
  Reply
#6
Both devices mentioned above would be an improvement (especially the caltracks). If there is no tire spin or wheel hop it would seem you have enough traction for the power level. Is the car an automatic? If so, do you know the approximate stall speed? What are the specs on the cam? Does the car bog as soon as you leave? I'm asking because it may be the convertor is too tight for the combination. If it is a standard shift car, have you tried raising the launch RPM? Just a thoughts. Chuck
  Reply
#7
Chuck the car isn't bogging when it comes off the line. I am running a 10" 2500 stall. The cam is an Isky P/N 431281 280 mega; hyd. .323, .565, 280 duration, 232@.050 with 108ls. The trans is a C6 with a reversr valve body.
I like the idea if the cal tracs. Am going to have to look into them this winter.
I should also add I am running 20 lbs air pressure in the rear tires.
Jim

drive it like you stole it
  Reply
#8
coilwire;42795 Wrote:Chuck the car isn't bogging when it comes off the line. I am running a 10" 2500 stall. The cam is an Isky P/N 431281 280 mega; hyd. .323, .565, 280 duration, 232@.050 with 108ls. The trans is a C6 with a reversr valve body.
I like the idea if the cal tracs. Am going to have to look into them this winter.
I should also add I am running 20 lbs air pressure in the rear tires.
Jim
Jim, I'll start by saying I have ZERO experience with Drag Radials but, if it isn't spinning and it isn't bogging it would seem to be something of a cam to convertor mis-match. You might try "flashing" the convertor instead of foot braking the convertor on launch, if you haven't tried this already. If the 60' improves noticeably the car may need a somewhat higher stall speed convertor. An alternative to that might be advancing the cam 2-4 degrees to pick up the bottom end torque. I make no claim to be a cam guru. However, I think the engine needs a wider (110-112) LSA especially since it is a canted valve head. Are you running the 4V heads? If so, I also feel it would benefit from a 6-8 degree duration split favoring the exhaust as well as .015-.020 more exhaust lift. Try the easy and cheap things first to gather more data to base decisions to make more difficult and expensive changes on. Just an opinion. Chuck
  Reply
Share Thread:  


Possibly Related Threads...
Thread Author Replies Views Last Post
  rear suspension 71_resurrection 2 186 07-16-2018, 01:56 PM
Last Post: Hemikiller
  Ford Front Suspension Support Tool by Tommy Zees mustang7173 33 3,899 07-04-2018, 02:50 AM
Last Post: NOT A T5
  Air Suspension GeoBW 5 290 06-03-2018, 12:37 PM
Last Post: mudbilly
  Suspension issue jowens1126 10 876 03-11-2018, 07:52 PM
Last Post: jowens1126
  self made front suspension support tools eddyw 6 1,026 09-29-2017, 03:28 PM
Last Post: Hemikiller
  Suspension upgrade for this winter Robsweden 10 764 08-24-2017, 04:51 PM
Last Post: jowens1126
  New suspension to build erikroy57 6 821 08-07-2017, 09:51 AM
Last Post: c9zx
  TCP suspension questions SR71 BLACKBIRD 9 949 07-04-2017, 08:57 AM
Last Post: SR71 BLACKBIRD



Users browsing this thread: 1 Guest(s)