I have pretty much narrowed down my choices of manifolds to the Inline Pro Sidewinder manifold. The only problem is that its a T4 mani and I already had my mind up on using the GT35R turbo with whatever manifold I choose. Well now I have to pick another one and need some help. Im looking for something damn near close to the power output of the 35R with the same spool characteristics. From searching, this is what I have found to be close.

Precision 6162 or 6165

These comparisons were for the T3 hot sides but hopefully the same applies to the T4 application. If i were to choose one of these, which one? And since its a T4, should I still go with the .82 hotside or back down to .63 since its already a bigger turbine. And last... being that its a T4 which means slower spool time, should I go BB or is the spool difference not worth the $400 upgrade.

Any input will be greatly appreciated!

Anthony

 

B4 you choose a T4, how much power you looking to make?

You'll more than likely be better of with a T3 variant.

 

GT35R with a divided T4 flange.

 

if you buy a prescision turbo, go BB from what i read, JB ones seem to fail a lot more.

you have a t4 mani and want to throw a medium turbo on it? then why go t4?

gt35 divided would be bamf if your mani is divided, but i am gonna guess its not so i would go with a BB6262


wait , i wanted to add, what is your power goal? stock motor? pump gas, water/meth, or race gas, e85?

 

I would consider the 6265 BB billett. I have the 6165 BB and I am very happy with it on the inline log as well. I think these are a bit bigger than the gt35 but should spool up around the same if not better and make more power top end.

 

I dont recall if the sidewinder is divided. If it is, the 35R divided T4 would be a good choice. Otherwise, the 6262 would also work well, divided or undivided.

I dont recommend the 6165, 6265, etc.. because on the F20/F22 you wont see any appreciable difference in power when compared to the 6162 or 6262 at the same boost levels.

 

The manifold is NOT twin scroll and it ONLY comes in a T4 option. My power goals are 500-550 on pump at least, and 600-620 on C16. If I could run a T3 turbo I would definitely do the 35R, 6162, or 6262. I think that the 6262 may be a bit too much for my goals and wont be very efficient.

Scorpion, are you saying no to only the 65 trim wheels or the 6162 as well? It sounded like you approved of the 6162 or 6165.

Now with this being said lets say I choose the 6162 or 6262 T4... would it be worth getting this in BB?

 

a BB6262 will spool right around the same time as a 35r and give you more top end.

no reason not to go that way. look at siadams dyno on a 6262 and a tubular topmount. sick sick power band.

 

The 6162 and 6262 are fine, but there is no need to pair the 61/62mm compressors with the 65mm turbine wheels. On the F20/F22 you wont gain power, only lag. The longer the manifold runners, the more difference it makes.

CFT recently did a dyno to confirm that the 6265 doesnt make appreciable power over the 6262. You run out of compressor before you run out of turbine flow.

And as others recommended, definitely go ball bearing. Not for spool, but for durability.

 

This is exactly right.

The 65 back housing has been proven to only spool slower than the 62 but the top end power is the same for both. I believe the 65 back housing was designed for bigger displacement engines because they move more air to get the turbo spooled faster. Not the case with a 4 cylinder that doesnt move as much air, so the 62 back housing will be a lot better for a quicker spool.

Case in point. My good buddy had the 6265 on his IP log manifold kit and he saw full spool around 5700 rpm and he couldnt go any lower than 7000 rpm VTEC engagement. He made about 490 at 18 psi on a dynojet. I suggested that he switch to the 62 back housing when he sent his 6265 into Precision for a seal failure due to not tightening the 4 bolts around the compressor housing. He had the 6265 upgraded to the 6262 and now he loves the turbo so much better. He just retuned last week and now, at 18 psi he is still making about 490 whp, but he is fully spooled by 5100-5200 rpm like mine and he can now have VTEC engaged at 6000 rpm. He is now making much more wtq.

62 FTW!