Proper cam gains over stock LS1 at 800+ whp?
08-23-2013, 08:38 PM
#22
Through testing I've found several ways to extend the power band of a large cubic inch motor with a small turbo. It's still a bandaid, but it certainly helps.
With that stall or any stall for that matter, the cam that makes the most average power in the power band the engine is used in will get it down track fastest given the combination.
If you'd like just send me an email Vetal.
With that stall or any stall for that matter, the cam that makes the most average power in the power band the engine is used in will get it down track fastest given the combination.
If you'd like just send me an email Vetal.
10-10-2013, 05:51 PM
#33
If you're going to tighten the converter like you mentioned in your last email then the cam needs to be ground smaller.
If your converter is still going to operate from 5500 and up, and the flash speed is 5500+, then grinding a much smaller cam isn't going to benefit you where the converter is allowing your engine to operate.
There is so much more to spec a cam than seeing one cam do good in one set-up with totally different parts not to mention vehicle weight and cubic inches and saying, "this will work for you too!" Then when you don't go with that cam it's, "you messed up it will never run right!"
Then again, not everyone tests camshafts every day of the week, 24/7 as a living. On hundreds of cars, hundreds of different set-ups and countless track test sessions, dyno sessions and data to comb through.
When you do that for a living, no matter how long you've done it for, you understand what I'm saying.
If your converter is still going to operate from 5500 and up, and the flash speed is 5500+, then grinding a much smaller cam isn't going to benefit you where the converter is allowing your engine to operate.
There is so much more to spec a cam than seeing one cam do good in one set-up with totally different parts not to mention vehicle weight and cubic inches and saying, "this will work for you too!" Then when you don't go with that cam it's, "you messed up it will never run right!"
Then again, not everyone tests camshafts every day of the week, 24/7 as a living. On hundreds of cars, hundreds of different set-ups and countless track test sessions, dyno sessions and data to comb through.
When you do that for a living, no matter how long you've done it for, you understand what I'm saying.
10-10-2013, 06:17 PM
#38
Not decided yet, I have around 6 months now to decide. I want PT8847 but new it costs too much, so I'll wait maybe some good used one will pop. Or maybe Comp / PT / TC will come up with some new small-frame turbo with 82mm+ turbine but cheaper than PT8847.
10-10-2013, 06:20 PM
#39
I've talked about it over the years and nobody ever seemed to care back then. Lol. There was a 212/112 lsa, a 221/114 lsa, and a 230/114 lsa I tested back to back one summer. The 212, and 221 cam were similar with slight advantage going to the 212 cam, and 230 cam was hard to launch, would nose over on shift if shifted below 6300, and had lowest trap of the 3. This was a 4850 lb 4x4 truck with small turbine. Tc76 maxed out.
Pixie dust, right? Or maybe its invisible jesus pushing on your bumper to make you go faster. Who really knows...