Thanks for the comment! We'll get his truck on the dyno soon.

Ya, wrapping the pipe helps tremendously! The radiant heat is cut down significantly. Plus if you have to work around it for some reason when the engine is hot, you get a small warning before you burn some skin off lol.
As far as wrapping costs, it usually costs under $100 worth of quality wrap to cover the hotpipes.

I'll try to get the dyno charts up on the avalanche as well, that setup has a 212cam, 6.0L, 80e, 8psi=525hp, pulls hard on the topend, but boost still comes in right away at low rpms.

thanks,

 

Oh i know very well wrapping helps cut underhood temps and exhaust velocity. Just saying as far as making things look pretty, no wrapping isnt the best looking thing, but that was directed to the guy bashing it.

What do you think would have a better effect though? Wrapping or getting everything coated?

 

I have never had any of my hot pipes coated, but not because I didn't want them to be, just never had. I would like to see some testing for coating vs. wrap. I actually like the look of the wrap if done properly, and painted like I did mine.

 

Maybe you're used to the cheaper mild steel, this kit is made from stainless and all tig welded. Quality parts and tig welding isn't cheap.
The T4 flange is quality stainless steel that is 1/2" thick.
The o2 bungs are stainless as well, not mild.
The two flex joints are quality as well, SS and no exposed mesh internally.
Stainless vbands/rings.
Stainless 2 into 1 merge/Y pipe.
1/2" thick SS wastegate flanges.
The two manifold flanges are SS as well, laser cut and uses stock steel O ring gasket.

 

I'm not meaning the wrap makes it look bad. It's all the piping that's just EVERYWHERE.

No need to get butt hurt Allen. Just typing my opinion as you do as well. I'm sure this is a great kit, just not the one I would choose if I were to buy one.

 

Ya, just elaborating a bit for others. I'm a believer in wrap vs coating, but I don't have any proof, just my preference.

To be honest, most turbo kits that come in, the coating starts to show signs of flaking, but not sure what kind of coating they got.
I know almost all housings that are coated, flake off if drivin hard. I prefer a turbo blanket on that component.

I like the wrap because radiant heat seems lower, plus, I've gotten so many burns from coated and non coated hotpipes and never burned from wrapped pipes.

maybe we'll do a comparison one day, there's a good coater just north of us.

thanks,
allen

 

 

wow.....


I know my coated pipes have burnt chipped spots. And scratches really easy. My new setup will be wrapped.



Why do you keep it divided? I know to keep the manifolds, and those benifits, any other reasons? Any other real word advantage to divided flanges?

 

The flange isn't a divided flange, it's a rectangle flange. I think you're referring to the separate exhaust tubes, merging from 2 into 1, right?
If so, it has to do with flow, back pressure and keeping a low press. diff.
I have a feeling this kit has a very low pressure differential due to the way it pulls like a ***** on the topend and how you can limit/vary/control boost easily. Boost is very predictable.
It's hard to explain, but going from one setup to this setup, is noticeable right away.

I'll do some more research on this and I have a little bit of info, but trying to finalize the testing.

 

Ive got a question, have you or anybody else ever tried to route the driver side exhaust infront of the engine, around the the crank pulley area and to join up at the turbo flange? dont know if anybody is familiar with syclone/typhoon (also think GNbuicks are same) hot pipe routing but its done that way. seems like from the pics with efans and the intake charge tube coming from driverside headlight area, that there would be plenty of room to do it that way?

just got curious after looking from the pics, but havent really looked at my truck to see if there are any obstructions. maybe even use a pass side manifold on the drivers side??
edit: just thought of the power steering pump, that might be in the way..?