Re: Blown Boss 260's what are you making
Well, we have an XR8 sedan that is proven to run at least 400kW and a 12.5 odd second run. Look at Motor mag for the details.
On the issue fo people unhappy with their kits I'd caution that these setups require different driving styles much like a turbo car in some ways. I haven't put any miles on mine as yet so I'm going gentle but I can only say my 290 engine felt VERY slow compared to the blown XR8 260 I rode in before I bought my kit.
When you buy a blower kit (say the CAPA Stage 2) you need to truly factor in an aftermarket computer such as TSI. For the 260 engine I'd very much recommend the following shopping list items:
- kit $7995
- fuel pump upgrade $400 (don't get ripped by CAPA on this one)
- TSI or similar $2000 fully tuned
I'd also very much recommend staying at 8psi and then concentrating on flow from that. Sintered metal conrods in Boss engines do not like high boost as at least three owners have found so far. It makes sense that if you can run mid 12s with a N/A engine, you should be able to get great results running 50% more intake potential!
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