The Cal-look Lounge
Welcome,
Guest
. Please
login
or
register
.
Did you miss your
activation email?
September 08, 2024, 00:58:08 am
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
Thank you for your support!
Search:
Advanced search
351031
Posts in
28634
Topics by
6844
Members
Latest Member:
Dom Smith
The Cal-look Lounge
Cal-look/High Performance
Pure racing
Rear suspension upgrades
« previous
next »
Pages:
[
1
]
Author
Topic: Rear suspension upgrades (Read 5495 times)
Rocket Ron
Hero Member
Posts: 2861
It's old school for a reason
Rear suspension upgrades
«
on:
June 23, 2012, 07:54:03 am »
I currently have traction bar, gearbox mid mount, type 2 snubers and spax shocks all round. Everything else is stock
has anyone some advice on upgrades to improve my drag starts, the car seems to bog down real deep so I was thinking an upgrade on torsion bars may be an idea
Any suggestions would be welcomed
Regards Ron
Logged
13.12 @ 101.84
Grooving out on life
You can't polish a turd but you can roll it in glitter
leec
Hero Member
Posts: 2595
Re: Rear suspension upgrades
«
Reply #1 on:
June 23, 2012, 08:09:40 am »
Hi Ron,
Are the shocks adjustable? My Konis are on hardest setting.
What's the gap like between the bus snubber and the bump stop on the chassis?
I don't run uprated torsion bars but your car is heavier I guess?
Lee
Logged
BeetleBug
Hero Member
Posts: 2836
Snabba grabben...
Re: Rear suspension upgrades
«
Reply #2 on:
June 23, 2012, 08:16:10 am »
Hi Ron,
I managed to get my 60ft down to 1.56 with stock suspension, bus snubbers and MH dot tires. Yes, it compressed the rear a lot so I mounted double adjustable Koni's and it helped. The problem with the bus snubbers is the bounce you get when they unload and this can cause traction problems. You want smooth movement and the car forward while the rear want to go down then bounce up. On my new car I have 28mm SAW torsions, urethan rubber both sides, Koni's, mid mount and this is a new world. Combined with a well working clutch my 60ft dropped to 1.42 which is my best ever. It is all a balance between clutch, suspension, HP and traction.
Best rgs
BB
Quote from: ROCKET RON on June 23, 2012, 07:54:03 am
I currently have traction bar, gearbox mid mount, type 2 snubers and spax shocks all round. Everything else is stock
has anyone some advice on upgrades to improve my drag starts, the car seems to bog down real deep so I was thinking an upgrade on torsion bars may be an idea
Any suggestions would be welcomed
Regards Ron
Logged
10.41 - 100ci - 1641ccm - 400hp
richie
Hero Member
Posts: 5665
Re: Rear suspension upgrades
«
Reply #3 on:
June 23, 2012, 08:29:04 am »
2 step and the right clutch set up,it can be that simple
cheers richie
Logged
Cars are supposed to be driven, not just talked about!!!
Good parts might be expensive but good advice is priceless
BeetleBug
Hero Member
Posts: 2836
Snabba grabben...
Re: Rear suspension upgrades
«
Reply #4 on:
June 23, 2012, 08:41:46 am »
Quote from: richie on June 23, 2012, 08:29:04 am
2 step and the right clutch set up,it can be that simple
cheers richie
Agree. On the picture below you see my car leaving the lights with approx 1 bar of boost and the parts mentioned above. I tried leaving the line with a lot more boost and on a strip with better traction and it bottomed out completely dragging the oil sump.
BB
Logged
10.41 - 100ci - 1641ccm - 400hp
Rocket Ron
Hero Member
Posts: 2861
It's old school for a reason
Re: Rear suspension upgrades
«
Reply #5 on:
June 23, 2012, 11:21:57 am »
thanks for the replys
how does the two step work, sorry don't know much about it
Logged
13.12 @ 101.84
Grooving out on life
You can't polish a turd but you can roll it in glitter
richie
Hero Member
Posts: 5665
Re: Rear suspension upgrades
«
Reply #6 on:
June 23, 2012, 13:54:29 pm »
Its a 2nd rev limiter,you set it below you main rpm limiter,I have mine on a switch off the handbrake,same in Jo's car,so you stage with one bulb on,make sure you are in 1st gear,pull up the handbrake enough to hold the car still and then using the clutch pull the car forward slightly to lite the 2nd yellow bulb,you can then put your throttle to the floor and the 2step limiter will hold it at that rpm until you release the handbrake.you can hear a car on the 2 step,sounds almost like it is missing[which it is as the limiter is cutting spark on random cylinders to hold the rpm down,sometimes fuel as well,on a turbo car sometimes you take some timing out while on the 2 step, this helps build boost as well which helps launch better & prevent the car bogging,
cheers richie
Logged
Cars are supposed to be driven, not just talked about!!!
Good parts might be expensive but good advice is priceless
Rocket Ron
Hero Member
Posts: 2861
It's old school for a reason
Re: Rear suspension upgrades
«
Reply #7 on:
June 23, 2012, 18:35:43 pm »
What clutch would you recommend ?
Logged
13.12 @ 101.84
Grooving out on life
You can't polish a turd but you can roll it in glitter
richie
Hero Member
Posts: 5665
Re: Rear suspension upgrades
«
Reply #8 on:
June 23, 2012, 20:17:39 pm »
Normal N/A,a stage 2 and a super daikin works really well to low 11s depending onwieght of car,lots of success using that in a variety of cars
After that it gets expensive and complicated,every application needs something slightly different
cheers richie
Logged
Cars are supposed to be driven, not just talked about!!!
Good parts might be expensive but good advice is priceless
andy198712
Hero Member
Posts: 1063
Re: Rear suspension upgrades
«
Reply #9 on:
June 23, 2012, 23:58:36 pm »
Two step, AKA launch control yh?
Logged
Lids
Hero Member
Posts: 3527
show me the chedder
Re: Rear suspension upgrades
«
Reply #10 on:
June 24, 2012, 07:58:09 am »
some ignition modules have two step built in, like this:
http://www.jegs.com/i/Mallory/650/6861M/10002/-1
Logged
If there's enough horse shit around, there must be a pony!
Buy your ciderberry here.
http://www.thatcherscider.co.uk/
dragvw2180
Sr. Member
Posts: 304
Re: Rear suspension upgrades
«
Reply #11 on:
June 24, 2012, 20:17:43 pm »
Is your engine a N/A or has it got a power adder ? Probably everyone on here will have a differant opinion of what is needed or not, here is what I have on mine. I have a full roll cage , supports the chassis from the beam back to the engine mount. If you are going to go faster than stock it will make your car safer and more tunable chassis wise. I have a turbo car so I upgraded my torsion bars to 30mm , installed adjustable torsion plates and secured them with aluminum torsion covers with bronze bushings which did away with the rubber grommets. Under acceleration my axles will not toe out or in enough to notice making the car more predictable. I removed the snubbers and control my suspension travel with my QA1 double adjustable shocks, set at 11 compression and 14 rebound. I have a RLR REV6 clutch setup which takes the shock out my launch and allows the suspension to do its job. My travel at the shocks is about 2.5 inches leaving at 5600 on the 2 step under boost. Is all this needed, depends on how fast or hard you are leaving the line. I would try to buy your parts and think about your future performance goals while buying them. With this setup I did 1.35 60 fts ( 6.45 1/8th } last race and did NOT do a burnout all day. Is this the best setup, no I am sure it isn't but it is working for me. Richie and others can chime in here and I am sure they have better setups than me, hope this helps, Mike McCarthy
Logged
Pages:
[
1
]
« previous
next »
Jump to:
Please select a destination:
-----------------------------
Cal-look/High Performance
-----------------------------
=> Cal-look
=> Pure racing
=> Technical stuff
=> Top Racers lists
=> In Da Werks
-----------------------------
The Cal-look classifieds
-----------------------------
=> For sale!
=> Wanted
-----------------------------
Happenings
-----------------------------
=> Happenings
=> Scandinavian Cal-look Classic (the event)
-----------------------------
Tyre kicking
-----------------------------
=> Off Topic
Loading...