Yet another LSPV/ABS delete how to... (1 Viewer)

[Dave 2000]

Start full open and drive it. If you get the sense that the rear is locking up start to restrict the flow of brake fluid to the rear.

That's my point, you fill the car to capacity.....that is total capacity. do some hard braking and adjust when you feel the rear brakes are close to locking, set the valve and call it job done. However, when the passengers get out and the load in the rear removed and there is just yourself driving and you need to stop in an emergency....a genuine emergency, the rears WILL lock and you do risk the loss of control what do you do then?

regards

Dave

 

[Three oaks 80]

That's my point, you fill the car to capacity.....that is total capacity. do some hard braking and adjust when you feel the rear brakes are close to locking, set the valve and call it job done. However, when the passengers get out and the load in the rear removed and there is just yourself driving and you need to stop in an emergency....a genuine emergency, the rears WILL lock and you do risk the loss of control what do you do then?

regards

Dave

I didn't do any of that. I have it full open now. I haven't made any adjustments and I am fairly sure I don't need to. I just started driving around with it. I have stepped on them very hard and with the 285 75R16 tires I heard the rotors howling before I got the wheels to lock up, but I didn't try to fully load the car with weight. My guess is that the rotors don't have the diameter to effectively lock it up except in wet or loose gravel. But I am very open to correction.

I also don't know if the risk of locking just the rears is worse than all 4 locking up.

 

[Dave 2000]

I didn't do any of that. I have it full open now. I haven't made any adjustments and I am fairly sure I don't need to. I just started driving around with it. I have stepped on them very hard and with the 285 75R16 tires I heard the rotors howling before I got the wheels to lock up, but I didn't try to fully load the car with weight. My guess is that the rotors don't have the diameter to effectively lock it up except in wet or loose gravel. But I am very open to correction.

I also don't know if the risk of locking just the rears is worse than all 4 locking up.

I have never heard of discs (rotors) 'howling', so am unsure what you are referring to?

The rear discs are definitely large enough to lock ssuming the fronts are working correctly., this where ABS steps in and prevents it. Locking the rears as opposed to locking all four is a recipe for the car swapping end to end, and locking all four does offer the possibility of the vehicle swerving, remember when all four wheels are locked you are no longer in control of the car. You are at the mercy of weight distribution, road camber, mixed surface and so forth, hence the ABS.


Something I would say is years ago I would have said why have a compensator on a car with ABS however, I am still seeing them on later vehicles, so I think it allows the rear brakes a chance to do their job before the ABS intervenes, take that as supposition though.

Regards

Dave

 

[Three oaks 80]

I have never heard of discs (rotors) 'howling', so am unsure what you are referring to?

The rear discs are definitely large enough to lock ssuming the fronts are working correctly., this where ABS steps in and prevents it. Locking the rears as opposed to locking all four is a recipe for the car swapping end to end, and locking all four does offer the possibility of the vehicle swerving, remember when all four wheels are locked you are no longer in control of the car. You are at the mercy of weight distribution, road camber, mixed surface and so forth, hence the ABS.


Something I would say is years ago I would have said why have a compensator on a car with ABS however, I am still seeing them on later vehicles, so I think it allows the rear brakes a chance to do their job before the ABS intervenes, take that as supposition though.

Regards

Dave

To draw this back to your original question. I don't have an answer I just have an opinion. Leave it full open and drive it around.

 

[Dave 2000]

To draw this back to your original question. I don't have an answer I just have an opinion. Leave it full open and drive it around.

Just be on the alert in particular when empty. As an asides you have heard about contacting your insurance company to advise of your brake mods?

Regards

Dave

 

[Three oaks 80]

Just be on the alert in particular when empty. As an asides you have heard about contacting your insurance company to advise of your brake mods?

Regards

Dave

Don't ask questions like that.

 

[jcardona1]

As an asides you have heard about contacting your insurance company to advise of your brake mods?

Yeah - I also call the IRS and let them know I plan on overstating my deductions for charitable donations.

 

[Dave 2000]

Don't ask questions like that.

Regards

Dave

 

[1973Guppie]

Probably out of adjustment? I found once mine was bled after doing the same as your self new brakes all round ect the rear brakes are working well. Having said that I still have all OE ABS system, and approaching 27 years and it still works fine.

regards

Dave

negative. lspv was not working anymore same with abs system.....

 

[1973Guppie]

Just be on the alert in particular when empty. As an asides you have heard about contacting your insurance company to advise of your brake mods?

Regards

Dave

please tell me you are not serious?

 

[1973Guppie]

for the record I totally disagree with the pro abs crowd, with the proportioning valve set correctly my non abs brakes are a thousand times safer than they were before this mod. Truck stops quickly and evenly. The braking stop distance has been considerably shortened. Again, I don't feel that these abs systems were meant for longevity and / or major modifications with larger tires, suspension, bumpers, sliders, etc.

 

[Broski]

As an asides you have heard about contacting your insurance company to advise of your brake mods?

FWIW From the research I have done you insurance can not be denied solely on the basis that you monkey with the breaks, (removed the ABS). disclaimer don't take my word fore it, please do your own research
This insurance thing has been beat to death

 

[Dave 2000]

negative. lspv was not working anymore same with abs system.....

Did you misunderstand my post?

I asked if perhaps the valve was not working properly? If it or the ABS system was not working it should have been repaired, not just stripped away.

Regards

Dave

 

[Dave 2000]

please tell me you are not serious?

Absolutely! Most countries now have legislation about vehicle modifications covering pretty much every component of the vehicle in particular with reference to suspension, steering and brakes.

This is there to (hopefully) discourage tossers messing with things they don't understand, fair to say some countries have gone overboard. Spain where I live for example see a snorkle as a major modifucation and it needs to be inspected by an engineer to make sure it is fitted before the vehicle can be declared as roadworthy!

I live on the border of two provinces, if I turn right out of my drive then all is well, if I turn left I have to remove one of my seat belts to prevent the vehicle carrying the eight passengers it was designed for!


Regards

Dave

 

[Dave 2000]

for the record I totally disagree with the pro abs crowd, with the proportioning valve set correctly my non abs brakes are a thousand times safer than they were before this mod. Truck stops quickly and evenly. The braking stop distance has been considerably shortened. Again, I don't feel that these abs systems were meant for longevity and / or major modifications with larger tires, suspension, bumpers, sliders, etc.

Here is where you are getting nearer the truth of it all.

It seems there are a set of invisible rules that apply to a large percentage of 4x4 purchasers.

1, Purchase car (Enter model here) and fit big wheels and tyres.

Result =

The car looks the dogs bollocks but braking distance increased for the same pedal pressure.

Tyres rub on inner panels, so up goes the suspension and braking further compromised as load valve not correctly adjusted with the CORRECT gauges.

2, Purchase lots of armour, throw on a winch, nice set of spotlights those mate.

Result = Braking distanced increased again for the same pedal presdure so braking is again further compromised.

3, Now start complaining that the braking system is rubbish and start cutting parts out.

Result = Owner totally confident because brakes are oh so much better (define 'better') and yet he or she is scared to present their car to an acreditted engineer in case he or she states the brakes are not up to snuff, so no safety certification so no insurance.

There may be someone on here that has actually done this and has an independent accreditation that can be presented to an insurance company, if so pass that on to others who can only then state there vehicle is safe.

I am not being an arse, I am stating facts in a logical manner, easy for anyone to understand and appreciate, and perhaps take on board what I am saying.

Regards

Dave

 

[TYM4FUN]

This is a how to, not a should I and why thread.....

 

[Dave 2000]

FWIW From the research I have done you insurance can not be denied solely on the basis that you monkey with the breaks, (removed the ABS). disclaimer don't take my word fore it, please do your own research
This insurance thing has been beat to death

I am not in the insurance business but my first question has to be have you modified your car with regards the brakes.

If no then nothing more to say however, if the answer is yes did your research include contacting your insurers and get an answer in writing?

Here in Europe I wanted to get a better off road tyre, that meant moving ftom the stock 275/70/16 to 285/70/16, nothing to do with looks or the 'pub talk' factor, just a better tyre choice was available. So I started with my insurance, I mean I am in the garage business and it would not look good running around in a car with invalid insurance. Without going into HOURS of research the results were pretty much and roughly quoted:

"If the tyres could be attributed in any way to an accident that might have been deemed to be my fault, I would find myself uninsured, EXCEPT in the event that I caused a death."

Linea Directa España this month two years back.

Totally wrong that I 'might' find I am uninsured but given the amount of litigation cases that seems to be spreading across the globe I was not about to risk it.


Regards

Dave

 

[Dave 2000]

This is a how to, not a should I and why thread.....

Fair comment.

Regards

Dave

 

[Broski]

I am not in the insurance business but my first question has to be have you modified your car with regards the brakes.

If no then nothing more to say however, if the answer is yes did your research include contacting your insurers and get an answer in writing?

Here in Europe I wanted to get a better off road tyre, that meant moving ftom the stock 275/70/16 to 285/70/16, nothing to do with looks or the 'pub talk' factor, just a better tyre choice was available. So I started with my insurance, I mean I am in the garage business and it would not look good running around in a car with invalid insurance. Without going into HOURS of research the results were pretty much and roughly quoted:

"If the tyres could be attributed in any way to an accident that might have been deemed to be my fault, I would find myself uninsured, EXCEPT in the event that I caused a death."

Linea Directa España this month two years back.

Totally wrong that I 'might' find I am uninsured but given the amount of litigation cases that seems to be spreading across the globe I was not about to risk it.


Regards

Dave

First I'm not in Europe, I was vague because this is a open public forum, and Lastly this thread is about a how to.
Like I said the insurance thing has been beat to death.
If you have anything more to say that pertains to this thread that great, otherwise start a thread about insurance.

Cheers

 

[Dave 2000]

First I'm not in Europe, I was vague because this is a open public forum, and Lastly this thread is about a how to.
Like I said the insurance thing has been beat to death.
If you have anything more to say that pertains to this thread that great, otherwise start a thread about insurance.

Cheers

First I never said you were in Europe, I said I was.

You replied about insurance research, but yes your right you were certainly vague, oh that was location, my bad but either way I am a more factual guy, my bad...again.

And I appreciate your answer about your mods and discussion with your insurers......oh wait...you didn't mention that, I understand.

Your right, I need a good kick up the arse for pointing not only how dangerous it is messing with something you don't understand, and given the members questions I get the impression he (with respect ) might not, I just thought it was being prudent by helping.......I mean that's what forum members do right?

Oh, and with regards to this being a 'how to' thread I had already acknowledged that but you missed that.

In closing, yours is the typical response one might get when someone is faced with the layout of a little fact and by throwing in some logic I really messed up, again my bad.


I hope my apologies are accepted.

Regards

Dave