Up Pipes. are they worth it?
- Thread starter bigbird
- Start date
I have the headers and up-pipes myself and saw a 10 PSI drop in drive pressure and 150* drop in peak EGTs back when I had the cheetah and was running high drive pressure on it. I planned to get before and after dyno and track results but blew the stock motor after installing them.
I have also installed the up-pipes alone on a few trucks and the owners loved them. With a 4088 already on the truck for months I installed a set on JonathanCasey19's truck and he says it felt like a whole different turbo. EGTs were down and spool up was faster and smoother, boost was higher at a given RPM than before as well.
IMO the higher the hp and the more air you are flowing the more airflow improvements are going to help and be noticed. On a 260 rwhp stock LB7 you aren't moving enough air to notice restrictions; on an 800+ rwhp truck you are moving alot more air and every air restriction you remove will help - filter, intake, 3" tubing from turbo to motor, intercooler, modded Y-bridge and intake runners, P&P heads, headers, up-pipes, pedistal - it'll all help.
I have also installed the up-pipes alone on a few trucks and the owners loved them. With a 4088 already on the truck for months I installed a set on JonathanCasey19's truck and he says it felt like a whole different turbo. EGTs were down and spool up was faster and smoother, boost was higher at a given RPM than before as well.
IMO the higher the hp and the more air you are flowing the more airflow improvements are going to help and be noticed. On a 260 rwhp stock LB7 you aren't moving enough air to notice restrictions; on an 800+ rwhp truck you are moving alot more air and every air restriction you remove will help - filter, intake, 3" tubing from turbo to motor, intercooler, modded Y-bridge and intake runners, P&P heads, headers, up-pipes, pedistal - it'll all help.
Lance's are 1 7/8ths IIRC... you can go as big as you want because of the twins. I am having 2 1/8th inch being made out of Inconcel 625. Contact Henry
Rick can make them in any size you want and also has new high flow cast manifolds out that he makes up-pipes for ($1250 a set IIRC), as well as his stainless tube headers and up-pipes ($1650 a set). On something moving that much air I would upgrade the manifolds and up-pipes.
Last night we had our first cold evening in the upper 30's. Had the chance to play with the cold air and up-pipes. On my hot tune bottom of 5th @ 60 mph I was holding 5lbs of boost. With just a 1/4 throttle in a half a second boost exploded to 32lbs!!! No bs! My cousin's mouth dropped throwing him in his seat. It's insane how much they've helped. Fueling has a lot to do with it too I would assume Dustin? (in addition to the new 35's I feel like I can load the charger easier)
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I dont think you can go wrong with either , i think the cast ones will have better longevity , but the headers will probably flow more .
Like they said the cast should last longer - not that the headers won't have a good life-span, but the cast will outlast the truck. The cast are a big improvement over stock and come with a set up up-pipes to fit them. The fabricated stainless ones should flow more than the cast but are a good bit more expensive as well. IMO you can't lose either way.
I installed bigger up-pipes (2")and they did help spooling.
I think that your truck Kelly, it would make a bigger difference
I think that your truck Kelly, it would make a bigger difference