Here I am

I need help choosing a turbo!

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Getting great fuel mileage

What gear

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I am stuck between a SPS 66 or a SPS 62. Target goal for the truck is 500-550 hp, but it will mostly be driven at about 350 hp. Since I don't really tow, I'm leaning toward the 66, but I'm concerned that at lower hp levels the 66 might cost too much in the mpg and spool department. On the other side I think the 62 might fit my needs better, but you know how it goes, I don't want to grow out of it. :-laf

Speaking of upgrading a SPS 62, what is the difference between the 62 and the 66? Other than the obvious size difference between the compressor wheels, I believe the exhaust side on them is the same? What about the wastgates and the center section? To convert a 62 to a 66, would you just need to change the compressor housing and compressor wheel?
 
Big P said:
but I'm concerned that at lower hp levels the 66 might cost too much in the mpg and spool department. On the other side I think the 62 might fit my needs better, but you know how it goes, I don't want to grow out of it. :-laf



Dont worry about the MPG - mine did not change from stock charger to the Sledpuller66 I have now. But I do notice a higher EGT until the charger lights... I run at about 650-750 at 70mph, FWIW
 
Sps 62

I had the same worries as you have, but ordered the SPS 62 and glad I did. This sucker has little to no lag over the stocker. Not saying you'll have a lot of lag with a SPS 66... If I ever go over 550 hp I'll just send it in and have them up grade the SPS 62 to a 66, but I doubt I ever touch anywhere near those numbers... I need my truck to last me. All I can say is Call Industrial Injection and talk to Shane 1 800 955 0476
 
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It's a tough call to make between the two. I searched the topic for over an hour last night, and all it did was confuse me even more! :-laf



Your right CHolman, I will definetly ask for II's opinion before I order, but there is some good input to be heard on here too. ;)
 
I agree, go with the sps 62. You will love it. Besides, that turbo can hold 600 hp, so you have a long way to go before upgrading.
 
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