Any problems or special rules?
What about noise??
[Edited on 6-12-05 by zzrpowerd-locost]
Whats the score with twin engines and sva?
Any problems or special rules?
What about noise??
[Edited on 6-12-05 by zzrpowerd-locost]
Yeah twice as much hassle
Sorry, that wasnt any help to you was it. Are you planning on having an exhaust on each side of the vehicle for each engine or will they common up
somewhere??
The reason for asking is if they common up then the tester will only need to test in one position. If they both exit very close to each other then it
might be considered one exhaust but if they are on opposing sides then he will have to run the noise test twice and average the results. It may be
the same for emissions.
[Edited on 6/12/05 by jos]
quote:
Originally posted by jos
Yeah twice as much hassle
quote:
Originally posted by jos
Sorry, that wasnt any help to you was it. Are you planning on having an exhaust on each side of the vehicle for each engine or will they common up somewhere??
Two exhausts will make life easier when trying to adjust emmissions. Otherwise, how do you know which one to tweak?
I think the Z100 only had one tail pipe.
Not sure about all the implications of having one or two tail pipes, but it would be alot easier to SVA the car with one engine then modify the car
afterward to fit two. Im sure there wouldnt be anything untoward about doing in that way.
I seem to remember a thread about twin engines and MOT's and in the end it was deduced/found that you needed to disable one for the MOT, as twin
engined cars can't be MOT'd as such.
Similarly, when on scrappy racers, they did the twin engined Taxi, they had to disable one when running on the road between events.
No idea how this ties into the SVA stuff though.....
IIRC you cannot have a road vehicle that is driven by two engines on two seperate axles.
Think it was stated in PPC a few months ago.
quote:
Originally posted by greggors84
I think the Z100 only had one tail pipe.
Not sure about all the implications of having one or two tail pipes, but it would be alot easier to SVA the car with one engine then modify the car afterward to fit two. Im sure there wouldnt be anything untoward about doing in that way.
quote:
Originally posted by Gav
IIRC you cannot have a road vehicle that is driven by two engines on two seperate axles.
Think it was stated in PPC a few months ago.
Yeah ive seen them before, a golf with 2 VR6's
iirc they promised to only turn the second engine on when it was on a track...
You could be right. I cant remebre the details now. If that is the case it suggests it is far harder to do DIY stylee than people realise. Id bet that a well tuned and modded busa could have a better power to weight ratio and be more fun, possibly cheaper too.
From what i know (admittedly not too much on this subject!), you can run as many engines as you like BUT they must run a common drive shaft, ie two
engines into a splitter box with two in and one out type of thing. Might be a right arse to find/make one, but it has been done. I believe Tiger did
for their roar going version of the v.v.v quick 4x4 version they used to take some quickest to something record. That sufficiently vague?
quote:
Originally posted by zzrpowerd-locost
quote:
Originally posted by greggors84
I think the Z100 only had one tail pipe.
Not sure about all the implications of having one or two tail pipes, but it would be alot easier to SVA the car with one engine then modify the car afterward to fit two. Im sure there wouldnt be anything untoward about doing in that way.
Pics i have seen, it has two
could you not do something like the w12 and w16 engines produced by volkswagen, 2 seperate cranks powering a single gearbox?
Personally i think that if you need 2 engines to get the power your not trying hard enough. a busa will produce 450hp pretty reliably, which in
something as lightweight as a tiger B6 for example still under 500kg with a busa turbo do you need anymore? thats 900hp per tonne.
The VW engines only have one crank!