Turbo for a stock 5.3
TECH Regular
Joined: Oct 2014
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Another factor to think about is when you want your boost to come in. I see a lot of huge turbos that don't boost up until 4k. If I was to build a stocker with a turbo to drive on the streets, I'd prefer my boost come on around 22-2400 range and full boost around 3400 and shift her around 53-5500. So I'd want a smaller turbo or turbo's. Now a drag car with a 4.5k stall, I may then want my boost to come on around 3.5k and be up to full boost around 4.8k or so and shift around 7k depending on cam and ecm.
On a street driven car or truck I prefer smaller faster spooling turbo's over the big slugs. Oh, they make tons of power, but on a stock cam you would have very little usable RPM's while in boost. I used an On3 76 on a 5.3 in a 99 4x4 z71 and it doesn't start boosting until around 31 to 33 hundred rmps. The owner and I both wish we would have used a smaller turbo or A/R to bring the boost online in the mid 2k rpm range. It's not a track truck so it doesn't need the high rpm boost. We are considering swapping the A/R to a smaller A/R or swapping to a smaller turbo.
Something to think about.
On a street driven car or truck I prefer smaller faster spooling turbo's over the big slugs. Oh, they make tons of power, but on a stock cam you would have very little usable RPM's while in boost. I used an On3 76 on a 5.3 in a 99 4x4 z71 and it doesn't start boosting until around 31 to 33 hundred rmps. The owner and I both wish we would have used a smaller turbo or A/R to bring the boost online in the mid 2k rpm range. It's not a track truck so it doesn't need the high rpm boost. We are considering swapping the A/R to a smaller A/R or swapping to a smaller turbo.
Something to think about.
Another factor to think about is when you want your boost to come in. I see a lot of huge turbos that don't boost up until 4k. If I was to build a stocker with a turbo to drive on the streets, I'd prefer my boost come on around 22-2400 range and full boost around 3400 and shift her around 53-5500. So I'd want a smaller turbo or turbo's. Now a drag car with a 4.5k stall, I may then want my boost to come on around 3.5k and be up to full boost around 4.8k or so and shift around 7k depending on cam and ecm.
On a street driven car or truck I prefer smaller faster spooling turbo's over the big slugs. Oh, they make tons of power, but on a stock cam you would have very little usable RPM's while in boost. I used an On3 76 on a 5.3 in a 99 4x4 z71 and it doesn't start boosting until around 31 to 33 hundred rmps. The owner and I both wish we would have used a smaller turbo or A/R to bring the boost online in the mid 2k rpm range. It's not a track truck so it doesn't need the high rpm boost. We are considering swapping the A/R to a smaller A/R or swapping to a smaller turbo.
Something to think about.
On a street driven car or truck I prefer smaller faster spooling turbo's over the big slugs. Oh, they make tons of power, but on a stock cam you would have very little usable RPM's while in boost. I used an On3 76 on a 5.3 in a 99 4x4 z71 and it doesn't start boosting until around 31 to 33 hundred rmps. The owner and I both wish we would have used a smaller turbo or A/R to bring the boost online in the mid 2k rpm range. It's not a track truck so it doesn't need the high rpm boost. We are considering swapping the A/R to a smaller A/R or swapping to a smaller turbo.
Something to think about.
On The Tree
Joined: Nov 2007
Posts: 103
Likes: 0
Not to be a douche, but I would call your friends fab skills into question then.................stainless is actually easier to weld than MS. Something else behind the MS decision? Cost?
