coil over rr vs spring on slider

[racing_kid]

wanting to take off blisten 40-40 gas shock on rr and switch it with a integra 3-5 but dont have a coil over kit. its on a 4-4 car what would the effect be if i ran spring on slider in front with shock in back?
Thanks

[LM14]

If you want the effects of a 3-5 shock on front, you will have to run a 5-3 shock on back. Think about what your birdcage is doing under compression and rebound.

SPark

[35smod]

You will reduce shock travel on the rr because of the indexing of the birdcage you will still want a tie down shock on the rr like a 3c 5r but you are probably not going to like the effects of putting the shock while the axle on the birdcage on the rr it is really going to take motion out of the shock and reduce its effectiveness why do you want to switch out of a bilstein I run a dp1 rr on mine with good results the oil shock will give you more feel but the bilstein will not fade in a long race especially on a rough track that works the rr hard

[Confused?]

It will loosen the car because the shock is basicly along for the ride. Tried it this year and went back to the coilover. I didn't like it very much but you may. A former IMCA national champion tried it a couple of years ago. He's back to a coilover as well.

[stock car driver]

try it yourself that's the only way to know there are no absolutes when it comes to set up

99 ran slider rr last year and liked it just fine 34-35 wins

[racing_kid]

thanks guys, the car just dont seem to get on the rr that much is why im wanting to try a different shock. unless there might be a problem elsewhere?

[charcoal01]

What kind of track conditions are you running in.

[35smod]

If the car just ain't getting on the rr I would look at something else remember side bite creates body roll soft springs and and don't the car is just rolling over at that point I would look more at jbar height and location to help with side bite and roll what spring are you running over there

[Brian Gray]

You can change the profile of the shock to make it more influential in that location. We have used that location to control indexing on the spring . some cars like it some don't. You do have to always take into consideration what is hapenning geometrically though anytime you make any adjustments.

[racing_kid]

track is normally dry slick, 150# rr with 200 pound lr. it has 6 inchs of split in j bar and pinion side is one hole below pinion. i feel like the rr spring is to soft yet the car aint getting on the rr, travels down half to 1 inch 80% of the time on a smooth track, thinking abut moving the lead up under the deck. car hikes up but the right side tires just dont stick. maybe im just over thinking it.

on my sport mod when i tried a 150# rr spring it rolled over 3 or 4 inchs and packed he Lf about 10 inchs constantly, but im from a 200 to 175 and now a 150 on the 4 bar car and its just not rolling over
once again thanks

[charcoal01]

Try dropping the j bar an inch on the frame side. Get your fuel cell up as high as you can. Any lead get that up to. With a 150 rr you should be (not a nice word)(not a nice word)(not a nice word)(not a nice word) near bottoming that thing out.

[JustAddDirt]

a 4o/4o bilstein is probably too stiff of a shock for the RR if on front of birdcage, remember that you have a lot of rod pressure on a standard SN bistein.
your 3-5 idea is probably right, but I think your 150 spring is too soft for the 3/5.
I am on a 225 RR on birdcage with a 2.5/3 base valve bilstein. car moves about 2.5"-4" depending on track conditions.

Like someone stated above. soft springs do not create body roll and side bite.

[Brian Gray]

Sounds like you need some shock help . if you have ballast that can be raised try that . but it could be a number of issues.

[racing_kid]

ok so i got a 3c 5r blisten put a 175 spring on rr with 55 pounds of bite. 55.6 rear 51.6 left and put 60 pounds of lead right below the deck above the rear end. the car is rolling now 1.5 inches on rr and 3 to 4 on the rf.
i feel like it has no side bite. its not loose just cant feel the rr. feels like it has 100 pounds of air in it

[racing_kid]

shocks are integra 8 2 lr blisten 3 5 rr integra 4 7 rf and a integra 5 3 lf

[setup479point2]

I could put a 300 RR spring in and get 3" travel . You have a bind somewhere , birdcage , links , shock mount, something is in bind . PM me if you want

[35smod]

I agree you either have a bind or your j bar is in the wrong spot how high is it from the ground at ride height how long is it charcoal be your problem also

[powerslide]

He either has a bind somewhere, wrong offset rearend, rearend shoved too far to the right, or too much rr wheel offset. Is this a sport mod you convered to 4-4?

If you look from the back of the car is either side tires lined up? Which sticks out furher on each side and how much?

[racing_kid]

It's a metric bms. 60 in centered rear end housing 3 off wheels all around the car. Rear end is centered in car. 17.5 in j bar bottom hole on pinion side. 5.5 in rake.I can take coil over off and the rear end moves freely. Up and down. If I put a longer j bar in what will that change?

[mod88s]

Lower your right top bar 1 hole. Raise your jbar 1" on the frame.

[powerslide]

Does it have metric lowers or nova lowers?

[racing_kid]

It has nova lowers. A 650 rf and 700 lf

[racing_kid]

ok well the rr shock was bent i figured out, now the car rolls plenty, just to tight now. my question is take traction from lr or add to rr?

[drtrkr244]

There are several adjustments you can make:
1)Lower ballast
2)Lower jbar on frame and/or raise on pinion
3)Soften LF to 650
4)Lower rear pctg.