bike_power
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| posted on 31/12/03 at 09:44 PM |
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Busa engine mods
Has anybody had their busa engine modified and is willing to share their power figures ?
Some tuners are quoting 230-240 bhp for basically cams, 1400cc conversion, bit of porting and power commander etc. I'd guess this will give
210-220 bhp.
Has anybody taken their busa to 240-250 bhp ?
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Hellfire
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 posted on 1/1/04 at 11:29 AM |
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OMG - in a 450Kg Car!!!
R they MAD!!! Where can I get one? Mmmmm...
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rlong
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| posted on 1/1/04 at 02:09 PM |
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How about this Busa mod. 380 bhp (without the nitrous)
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bike_power
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| posted on 1/1/04 at 05:28 PM |
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I'll probably end up getting a turbo kit too, at least it's reliable, guaranteed power and well tested.
The problem with going n/a is it needs to rev more, which means new rods, pistons, bearings, stroker crank etc and all this adds up to more than the
cost of a turbo system before you start on cams, head etc.
rlong, is your power delivery smooth and progressive ? Does the engine feel strangled at high rpm ? Only ask because so many turbo cars feel like
this.
Thanks, Steve
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rlong
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| posted on 4/1/04 at 03:44 PM |
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Yep, that's the same logic I used, especially these days you can fit a proven turbo kit off the shelt for 280 bhp with no engine mods.
If you wanted that power from n/a you would spend mega bucks.
It is not on the road yet (about 2 weeks away), but yep, power should be even more smoother than a standard busa due to the entra low down torque.
Not sure at the high rpm but I would find this hard to imagine due to the power being produced.
Ric
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Crazy Jay
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 posted on 4/1/04 at 04:41 PM |
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Yup
Theres a very nice, very reliable supercharger kit pumping out 250BHP. 2.5k tho
www.tts-performance.com
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rlong
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| posted on 5/1/04 at 01:04 PM |
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Nice....yes, reliable....still to be proven.
I think they have only done a few conversions against the hundreds for the turbo kits.
Besides, I am not convinced that a supercharger is the best choice (against a turbo) for a BEC.
Ric
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bike_power
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| posted on 5/1/04 at 08:55 PM |
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Doesn't the Supercharger poke out the back of the engine into what would normally be the passenger footwell ? I think my chassis would be in
the way on my car so it's a non starter.
The only benefit would be that it's probably more progressive than a turbo which might make it slightly more driveable but from what I've
heard, the busa turbo conversions are very smooth anyway. I guess that'd have to be on a bike.
In the USA well over 400bhp seems to be quite acceptable and several people are claiming 550 odd bhp. Not sure I'd put money on how long
they'd last on full boost but a nice 440bhp would give over 900bhp per tonne and would probably be reliable enough. Ummmmm . . . . better
power to weight ratio than most Superbikes . . . if only slicks were road legal 
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rlong
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| posted on 6/1/04 at 01:27 PM |
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Some kits do up to 600 bhp 
Does require a few engine mods thought
I will be happy with my 450bhp
Ric
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bike_power
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| posted on 6/1/04 at 09:08 PM |
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Ric, what engine mods are required for 450 bhp ?
Cheers, Steve
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JoelP
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| posted on 6/1/04 at 11:10 PM |
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one large turbo plus a few extras!
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rlong
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| posted on 7/1/04 at 01:12 PM |
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Spec:
Velocity Racing Stage 2 Turbo kit
MTC Turbo Pistons HD/pin
.090 Base Spacer
APE Head Bolts
Cam Sprocket (APE)
Carrillo Rods
Carpenter Springs
FULL R&D Transmission
Strengthened Output Shaft (stock config)
MTC 2 stage lockup
Billet basket & Hub
MTC Clutch Cover
Westfield Dry Sump System
oh...and a WON nitrous system.
Turbo kit has the smaller turbo (t25), so power is limited to 380 bhp, but the nitrous system is intended to take it up to arround 450bhp.
The mods to the engine should be good for a reliable 500 bhp.
Ric
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