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Old 26-08-03, 20:48   #1
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Walkinshaw Vs VN SS

The Walkinshaw had 183kw from the factory it has all these good parts in the engine. A VN SS with a set of extractors, exhaust and cold air intake should be able to match this power output. So whats with the low power output from the Walkinshaw.
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Old 26-08-03, 21:37   #2
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it's not always about the total KW.. it's how it's made and put to the ground. And also the torque has a huge part.
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Old 26-08-03, 21:51   #3
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true but the VN should have more low down torque because the manifold on it has shorter runners than the one on the Walkinshaw which is for high revs and not low down torque.
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Old 26-08-03, 22:18   #4
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Are you sure the walky's output was that low?
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Old 26-08-03, 22:30   #5
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i'm pretty sure it is because i have read a heap of articles on it. According to http://www.powerchipgroup.com/ a standard VN SS also produces more torque than the Walkinshaw with 385nm Vs 380nm.
I don't know what is so special about these engines apart from its intake manifold.

Last edited by ijd; 26-08-03 at 22:34.
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Old 27-08-03, 08:40   #6
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The Walkinshaws came standard with about 180kw, but they had a restrictor plate in the second throttle body to reduce induction noise. In HSV's Q&A section they have quoted the output to be just over 200kw once the restrictor plate is removed.
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Old 28-08-03, 14:33   #7
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I've got a terrible memory for technical details, so maybe someone with more knowledge can expand on what I say here. I remember reading a long time ago that the engine in the Walky roadcar was designed with pretty much the sole purpose in mind of being an excellect starting point for the touring car race engines. After all, this car's purpose all round was a homologation special (face it, you wouldn't design a bodykit like that to win a beauty competition). So I believe that the engine was designed with strength and endurance in mind as far as the road-car components that couldn't be modified for the race cars go, and which would cope with the stresses that the allowable modified components on the race cars would place them under. Therefore total power output on the road cars wasn't as important as a fundamentally strong engine that could be modified for the track. Any other thoughts on those lines??
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Old 28-08-03, 16:36   #8
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You hit the nail on the head. The included the parts they needed, and some mods were then made for racing. Apart from the twin throttle bodies they also have roller rockers and 4 bolt main, and a few other bits and pieces.
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Old 01-09-03, 10:17   #9
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Its the overall package that makes them good from the motor to the suspension to the made kit which isnt just for looks but mainly for aerodynamis which makes it stick to the roads. i would prefer i walkie over the Vn SS anytime much better car i say.
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Old 01-09-03, 18:41   #10
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I don't know how you could compare the two personally.
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Old 01-09-03, 19:58   #11
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You can't!!!!
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1988 VL SS Group A SV Walkinshaw #369 - WALLKY
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Old 02-09-03, 18:52   #12
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i read in a magazine a vn standard v6 would just beat a walkie down the quarter
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Old 04-09-03, 04:49   #13
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haha yeah i dunno how these two cars could be compared either.... the walky is standout in every aspect.. just becuase it only made 180kw for the street doesnt really matter.. its looks and other aspects are wat makes it a walkinshaw.. a vn ss was a mass produced car, u dont see THAT many round but at the end of the day its just another car on the road.. whereas u dont see too many walkys these days.
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Old 08-09-03, 13:09   #14
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Quote:
Originally Posted by baker
i read in a magazine a vn standard v6 would just beat a walkie down the quarter
I don't think so.. walkies did 14.8's stock I think and I don't know many VN 5.0's that do that dead stock.... a VN v6 was only 127kw i think so it would have been a 16sec car...
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Old 09-09-03, 00:09   #15
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Hey Craig how come you can have your avatar so big??????????????
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Old 09-09-03, 00:36   #16
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streetcommodores v6 vengance is only just running 14's or 15's and that's pushing the motor to its limits.
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Old 09-09-03, 12:33   #17
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Hey Craig how come you can have your avatar so big??????????????
Dunno it just came out that way!!! Im not complaining!

Also I don't think that the V6 venagance has cracked a 14 yet??? Has it??
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Old 23-09-03, 01:22   #18
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The walkinshaw a D port style heads. The only other car to get these heads was the VN Group A. D port heads are also the same as the Yella Terra and Come Racing alloy version. They can be ported in excess of 600hp vs the standard VN being capable of only 520 or 560 using tounge putty.

The walky also ran Yella Terra 1.65 ratio roller rockers. It also has a Yella Terra flywheel. The majority of the difference was the heads and the injection, but that is where you make all your power. The walkinshaw power output was severly retarded from factory with after market capabilities in mind. In the late 80s the Walkie was considered a damn quick car. If is produced any more hp from factory the government bodies would not of been impressed.

Judging a car performance just on peak hp figure is not recommened. Its all about how it is delivered. I have had both a VN and a Walkie and the Walkie absolutly ****s on it. Not a contest.

Removing the restrictor on the second thrott has no benefit to a standard motor. I did the exercise on the dyno.
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Old 23-09-03, 08:22   #19
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bushing lifter bores

Sam from C.O.M.E. has mentioned that to rebuild a Walkinshaw you need to be mindful of the defect in the blocks - you need to bush the lifter bores to correct them. they all wear camshafts because of incorrect factory machining.

Has anyone experianced this problem?
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Old 23-09-03, 21:16   #20
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Sam from C.O.M.E. has mentioned that to rebuild a Walkinshaw you need to be mindful of the defect in the blocks - you need to bush the lifter bores to correct them. they all wear camshafts because of incorrect factory machining.

Has anyone experianced this problem?
I have had the lifter bore sleeved in my walky engine due to constant excessive cam wear.
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Old 06-10-03, 12:24   #21
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Quote:
Originally Posted by WalkyMD
Sam from C.O.M.E. has mentioned that to rebuild a Walkinshaw you need to be mindful of the defect in the blocks - you need to bush the lifter bores to correct them. they all wear camshafts because of incorrect factory machining.

Has anyone experianced this problem?
Weren't the lifter bores made for larger lifters, i think it was the same size as chrysler lifters.

Last edited by Fitzy73; 06-10-03 at 12:26.
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Old 13-10-03, 12:22   #22
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haha yeah dunno how they are compared either...
they both get stares from me...
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Old 16-04-06, 19:18   #23
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i have a friend with a walkie and he had excessive cam wear..
bill lee had a perkins cam laying around his workshop for ages that he said would fit the walky, so it was fitted.. after about 2 years of computer mapping and programming problems, someone in perth was able to successfully get the computer settings right, and i was told that the car is going just so, so hard.
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Old 19-04-06, 15:17   #24
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My Car has chewed through 3 cams in its life span

My current combination (standard stroke) delivers 300hp to the rear wheels - guess I have got it right this time.

As for comparisons to a VN SS? I'll race yah (on the strip of course)
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Old 07-05-06, 22:51   #25
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i dont think a vn ss would really even come close to beating a walky down the 1/4 or track
and still you could never say the quality build and feel of a VN ss would eva come close to a walky
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