robertwa
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| posted on 22/6/05 at 05:37 PM |
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Boosting an R1
Has anyone had any experience boosting an R1? I'm still early into the building stage, but lokoing for a good engine. Now I'm at the
R1/busa dilema.
I'm building for mostly road use occasional track day.
My thinking is that the money I can save on gettting an R1 over a busa to begin with, plus the saving on not having to dry sump it could be put
towards a turbo kit for the R1. Does this make sense? Does the yamaha bottom end hold up well to this kind of treatment?
I drove in a westfield hayabusa last weekend and it blew me away. How far off that performance is a stock R1? Would you notice if not racing?
Thanks guys
Rob
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robertwa
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| posted on 22/6/05 at 08:05 PM |
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I'm really more interested in how the engine holds up with mods like a turbo.
I'm in San Diego - I got a quote of $2500 for an R1 'car kit' vs $3000 for a busa (all US dollars) so the difference in the engine
price isn't that much. It's when you add the dry sump etc it will make the Suzuki a lot more expensive.....
Rob
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tony9876
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| posted on 22/6/05 at 09:05 PM |
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Busa engines are pretty much bulletproof when it comes to modifications with some motors seeing over 500bhp. The r1 is less powerful but also has a
lot less low down power too. I had a busa westfield that i had big bored gas flowed etc and it never skipped a beat. If i lived in the states it would
be busa all the way
[Edited on 22/6/05 by tony9876]
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ChrisGamlin
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| posted on 23/6/05 at 08:17 PM |
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Ive driven otherwise almost identical busa and R1 westfields on the same day and the R1 in stock form isnt far off the busa at all, especially up to
100mph. It produces its power differently and you can certainly go quicker in the busa if you want to drive it without caning the arse off it, but if
both are on the boil the R1 isnt much slower. I havent driven mine yet but JimG who's got a carbed R1 Pheonix told me that he was impressed with
the injected engine's mid range and smoothness compared to his when he went out in an injected Fury, so hopefully my injection engine will be
even closer.
Having said that, I don't think I'd turbo one, the engine is 30kgs lighter than a busa and has a higher specific output so just by looking
at that gives a good idea that its never going to be as strong as the busa engine, especially on standard internals. The busa is very well proven with
turbos and the investment in turbo-ing is much higher than you initially think (a mate of mine who is turbo-ing his busa reckons the conversion owes
him best part of £8-10k), so if investing that kind of money I think Id start with the strongest engine I could find - the busa.
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OX
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| posted on 23/6/05 at 09:36 PM |
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the torque of the busa is the the biggest difference that i noticed between that and the R1,i remember having to knock the r1 down agear to be able
to over take with any speed but with the busa i just leave it in top,,no matter what speed im doing .
both damn good engines but if your going to get one turbo'd get the busa
or you could try the zx12,,,,just to keep hell fire happy
[Edited on 23/6/05 by OX]
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jimgiblett
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| posted on 24/6/05 at 08:27 AM |
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If you are going down the turbo route I think you might want to have a look at getting Carrillo (sp?) Rods as this appears to be the weak link when
seriously upping the power on the R1.
The biggest advantage I have seen of the R1 over the Busa is that you can seriously cane it without that nagging worry in the back of your mind about
how much it will cost if it goes pop.
As far as inj vs carbs I was very impressed with the inj R1 in a friends fury. This was really for smoothness rather than power which seemed very
similar.
If I was to boost mine I think I would rather go the supercharging route over turbos just for the linear power delivery.
Hi boost turbos seem more for the straight line boys anyway 
My 2p
Jim
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ChrisGamlin
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| posted on 24/6/05 at 08:36 AM |
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Yep, certainly in the lower rev range the busa is a lot stronger, I saw a dyno run printout of several bikes (blade, R1, ZX9 etc) next to a busa and
the busa produced more torque at ~3500rpm than any of the others did at peak torque.
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ChrisGamlin
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| posted on 24/6/05 at 08:37 AM |
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Morning Jim, I tend to agree, although I wont say no when Baz throws me the keys of his Busa turbo to have a blast in
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jimgiblett
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| posted on 24/6/05 at 08:45 AM |
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Hi Chris
My comment was for Baz just in case he was reading
But like you said I wouldnt turn him down, I'm sure his car will be awsome when he finishes it.
How long until yours is back on the road then?
[Edited on 24/6/05 by jimgiblett]
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ChrisGamlin
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| posted on 24/6/05 at 09:05 AM |
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Should be ~350bhp at a conservative estimate
Mine should be back on the road in about a week assuming it fires first time! I was hoping to be on the road this week but a few things have held me
up. 
Did you hear about PeteO's plod fine on the way back from Le Mans, EUR750 
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jimgiblett
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| posted on 24/6/05 at 09:13 AM |
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Ouch!!!..... In the Trevor or has he changed cars...must have been shifting then?
350bhp... that should loosen the bowels
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ChrisGamlin
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| posted on 24/6/05 at 09:51 AM |
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He's got a left hooker 993 Turbo now, he was caught doing ~170kmh in a 110 I think, although Rodders said he allegedly was doing rather more a
short time beforehand (try changing kph to mph )
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soggy
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| posted on 24/7/05 at 09:01 PM |
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turbo
Try www.turbo-bike.net
if at first u dont succeed use a bigger hammer!
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