Pete Croney's Warp Drive and Brakes
#1
I am a happy chap.
Following the post that Pete made about half-boost overtaking (http://bbs.scoobynet.co.uk/Forum9/HTML/001165.html) I decided to try the 'lift off and floor it' technique.
I believe I have now gone from impulse power to warp ... thankyou Pete
The difference is staggering, I mean I know they are quick and yes I own a humble 94 WRX but it now moves rather more quickly and I got some rather funny looks as trails of light came out of the back of the car ;o)
The warp drive seems to only live in 1st, 2nd and 3rd gear tho, which is nice.
Which brings me onto brakes... The place that I tested the warp drive is a nice safe straight stretch of road with large roundabouts at either end. Needless to say I was rather enthusiastic once I had discovered warp one.
Of course this meant using the brakes a little more. After a few 'laps' a sort of squeeking/squeeling noise appeared from the wheels, this only lasted a few minutes.
Does anyone know why this happened and is it normal, i.e. just hot brakes?
btw they are new P1 calipers, disks and pads.
Matt.
Following the post that Pete made about half-boost overtaking (http://bbs.scoobynet.co.uk/Forum9/HTML/001165.html) I decided to try the 'lift off and floor it' technique.
I believe I have now gone from impulse power to warp ... thankyou Pete
The difference is staggering, I mean I know they are quick and yes I own a humble 94 WRX but it now moves rather more quickly and I got some rather funny looks as trails of light came out of the back of the car ;o)
The warp drive seems to only live in 1st, 2nd and 3rd gear tho, which is nice.
Which brings me onto brakes... The place that I tested the warp drive is a nice safe straight stretch of road with large roundabouts at either end. Needless to say I was rather enthusiastic once I had discovered warp one.
Of course this meant using the brakes a little more. After a few 'laps' a sort of squeeking/squeeling noise appeared from the wheels, this only lasted a few minutes.
Does anyone know why this happened and is it normal, i.e. just hot brakes?
btw they are new P1 calipers, disks and pads.
Matt.
#3
Hi,
Well I tried a little of full lift off
and partial lift off and I think that
momentarily lifting off fully was giving
the best results.
First and second gear where dispatched
within a blink of an eye, I am still
amazed by the difference it makes!
Some more experimentation is still needed
I think.
Well I tried a little of full lift off
and partial lift off and I think that
momentarily lifting off fully was giving
the best results.
First and second gear where dispatched
within a blink of an eye, I am still
amazed by the difference it makes!
Some more experimentation is still needed
I think.
#5
Not tried the lift off yet. My experimentation has been from a rolling start. And changing into 3rd at about 55 (from 4th) using upto half throttle for swift progress.
I will be tring this lift off thing at the week end.
P.
#6
I basically tried it in second gear, whilst
accelerating steadily. When the rpm reached
about 3 1/2 - 4k I let off completely for
a split second and then planted the throttle
to the floor.
The same also works in third gear.
Hold on tight when you try it!
accelerating steadily. When the rpm reached
about 3 1/2 - 4k I let off completely for
a split second and then planted the throttle
to the floor.
The same also works in third gear.
Hold on tight when you try it!
#7
what an absolutely barking mad design.
If car legislation has forced the manufacturers to come up with such a stupid, unsafe design then the legislation is barking mad!!!
the worlds gone mad!!
If car legislation has forced the manufacturers to come up with such a stupid, unsafe design then the legislation is barking mad!!!
the worlds gone mad!!
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#10
indeed, I did have somewhat more 'fun' than
normal around the roundabouts.
what struck me (and correct me if I am wrong) is that that "don't let off, accelerate" line of thought really comes into it's own with this.
Previously I could see the logic behind it yet with the lag (and it's a big turbo MY94) and gradual woosh I thought that surely it would take a relatively long time to get out of trouble through accelerating. With this method the car has power very quickly, I was pretty shocked at the difference to be honest.
I think that some *careful* practice and ideally an advanced driving course is needed, for me at least anyway.
normal around the roundabouts.
what struck me (and correct me if I am wrong) is that that "don't let off, accelerate" line of thought really comes into it's own with this.
Previously I could see the logic behind it yet with the lag (and it's a big turbo MY94) and gradual woosh I thought that surely it would take a relatively long time to get out of trouble through accelerating. With this method the car has power very quickly, I was pretty shocked at the difference to be honest.
I think that some *careful* practice and ideally an advanced driving course is needed, for me at least anyway.
#12
I have just been out for a spin (any excuse) and i couldnt notice any difference. I have an sti3 vltd and it seems to take off whether i roll the revs and hold them at 3000ish then nail it or if i take my foot off then nail it.
cheers scott
cheers scott
#13
Hi All!
I have found that the best way to motivate a Scoob quickly is *NOT* to floor it at all but to feed the power in gradually. Keep pressing the throttle until no further power increase is felt, hold there for a little while then feed further, etc. Dunno if this circumvents the 0.5 bar max, but it's a bit smoother anyway :-)
Of course with an after market ECU, the problem does not exist, but even with a PossumLink I found that the car was stronger just by feeding the power in than going full bore straight off. I guess this might be down to increased turbulence in the intake system causing better homogenisation of the charge?
With regard to brakes, did the noise only appear during braking or was it more constant? Squeeky brakes are fairly normal even when cold when running Mintex 1155 compound, or something like Pagid blues.... Ferrodo DS2000s can be VERY squeeky!
Cheers,
Pat.
I have found that the best way to motivate a Scoob quickly is *NOT* to floor it at all but to feed the power in gradually. Keep pressing the throttle until no further power increase is felt, hold there for a little while then feed further, etc. Dunno if this circumvents the 0.5 bar max, but it's a bit smoother anyway :-)
Of course with an after market ECU, the problem does not exist, but even with a PossumLink I found that the car was stronger just by feeding the power in than going full bore straight off. I guess this might be down to increased turbulence in the intake system causing better homogenisation of the charge?
With regard to brakes, did the noise only appear during braking or was it more constant? Squeeky brakes are fairly normal even when cold when running Mintex 1155 compound, or something like Pagid blues.... Ferrodo DS2000s can be VERY squeeky!
Cheers,
Pat.
#14
Mattski,
Tried it today. 3.5 - 4k, split second lift and........
......I am sure it is quicker. My mate was with me and he agreed it felt quicker. It was accompanied by a slight jolt.
Will be doing more testing on Sunday.
I REALLY think I should. Be rude not to.
P.
Tried it today. 3.5 - 4k, split second lift and........
......I am sure it is quicker. My mate was with me and he agreed it felt quicker. It was accompanied by a slight jolt.
Will be doing more testing on Sunday.
I REALLY think I should. Be rude not to.
P.
#16
Testing went well. Absolutely convinced there's more.
1st, hard to tell. So damn quick anyway .
2nd, accelerated, felt fast. Changed up trundled, changed down, held 2nd 3-4k, aaaand lift - re-apply v quickly, who took the hand brake off!! Definately quicker.
3rd, also damn quick! same procedure as above. Change down, hold and boot it, quick. Change down from 4th, hold...3-4k...lift split second KUTHUD, Mr sulu that is a go!!!!! and ping. Off in to the distance I went. Grinning like and Idiot. Again, definately quicker. You could feel there was more urgency(sp) init.
I would like to conclude that the tests were successful. (I can do more if you like no trouble at all. ) Can't test 4th as you would be well over the speed limit.
Now, wether this is because of the ecu thing, or just that the large turbo's on our cars are properly spooled, I wouldn't like to say. But suffice to say it works.
A little story. On my week of, I went and visited a mate. Had been demoing the car and he was mighty impressed.
On the way to a shopping centre he and his missus were in the car. I came of a round about in 2nd, into a tightish but opening left hander. I needed to lift.(In a straight line.)
I went to almost max accel at 3k. The car shot fowards incredibly quick. So much so that I wasn't expecting it to go that quick. I laughed out loud and my mate was gobsmaked. He now understands why I have been burbling on about the car eversince I got it.
Needless to say I think it works.
P.
[This message has been edited by Sith (edited 20 November 2000).]
#17
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Matt,
re: your brakes. I have P1 4-pots on my MY94 and had the same at Donnington last weekend. Once the brakes had had a chance to cool they were fine. I don't think it's anything to worry about!
Zak
re: your brakes. I have P1 4-pots on my MY94 and had the same at Donnington last weekend. Once the brakes had had a chance to cool they were fine. I don't think it's anything to worry about!
Zak
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