Lb7 s475 on stock fuel?

Dozerboy

Well-known member
Jun 23, 2009
4,892
470
83
TX of course
Make a plan and buy parts that will meet your needs. I don't get the "well I'll slap X turbo on my truck and see what happens." An 475 will make what 900hp as a single. Is that what you want?

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DAVe3283

Heavy & Slow
Sep 3, 2009
3,724
292
83
Boise, ID, USA
If you don't tow and can stand the lag, a S475 can be streetable. In terms of a fun turbo for stock injectors, the most fun stock motor LB7 I've been in ran a 66mm Silver Bullet. Industrial Injection gets a lot of hate, but I've actually had good luck with them, including two turbos and a set of +60% injectors.

You do need sane tuning to keep rods alive with a smaller turbo.

As for how fast the silver bullet will light, I threw a bigger tune on my brother's truck, and a WOT snap in 2nd blew the tires off and it RPM'd so fast is spun the stock balancer on the crank. :eek:

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