Like AFI said: To know what you're looking at, you must finger the ID of your manifold/header with your trained Mitutoyo caliper like fingers.

 

AFI, your right my bad, I keep forgetting they stepped the 58mm series up to the CEA turbines.. I loved my 5857 so I would imagine the 5858 is just phenomenal, if I ever set up another s2000 that would be the route I will go with for a more tame street/track setup

 

I'm aware of ID vs OD and the way materials are supplied in raw form as well. I'm speaking about the % change in diameter from N/A to turbo. Smaller yes but small enough and is the size changing with the length appropriately?

I'll have to grab my calipers tomorrow and have a measurement or two before I could quote numbers so I'll do this before guessing. Cast manifolds of course would be an exception to this, though they are from a mold of course which came from raw material I assume anyway.

99% though?

 

DonaldmeJr,

Thanks for posting, I'm on a phone currently but I'll have a look when the screen is larger. Thanks for taking the time to search some.

 

As for Log vs long runner......

Nobody here wonders why manufactures choose logs? I know the reasons and some others here too but consider those reasons may apply well to the OP.

Words to be associated with log:

Cheap
Reliable
Longevity
Fitment

Words to be associated with long runner:

Efficiency
heat
lightweight
cracking


Certainly people can understand why I may be point the OP towards a log style right? He doesn't know which side the steering rack is on, do you think he's ready for a 678whp E85 setup on an equal length manifold? Seems a bit much to me..... So please don't think that I have no appreciation for more hp per pound of boost, I absolutely do but I don't think that's the #1 priority here.

With how little the guy knows, why don't we point him in the direction of a turbo kit that simply doesn't fail since he has little knowledge to work with at this point. I'm not calling the guy stupid, just inexperienced.

 

Looking at these graphs, I'm not seeing 7k vtec engagements no beautiful curves for that matter.

I see some around 6 to 6300 or so. Still quite high I agree though and higher than I'd have expected to see. I'm not sure I can say with that info that vtec shouldn't have been earlier but I can at least see that that's what the given tuners chose which is at least worth something.

I still believe vtec should be occurring lower in an FI application in general for this motor.

 

I need some advice from the turbo gurus (thanks auss2000 for your pm)

Ok this topic suits my questions entirely but also puts options out the window for me.

I am currently supercharged(SOS kit maxed out) and still not happy so inturn I am deciding to go turbo this is where the fun begins my car is RHD. The steering shaft is smack bang where the manifold goes. Does anyone know what manifolds will clear the steering.

So far these are my options that I know of;
Lovefab mini me manifold
Mase rhd manifold

Basically all I need is the manifold, turbo, dump pipe, wastegate, intercooler & piping and the usual clamps lines etc etc.

Already working with a 9.5:1 comp engine.
Haltech platinum 1000
1000cc injectors
Full-blown twin 340 pumps
Sc setup is currently running on e85.

Hopefully I can get some more options. Thanks to all in advance!

 

IP makes an RHD setup.

Here: http://www.inlinepro.com/s1/p-256-s2...-manifold.aspx

What else are you looking for? Manifold options?

 

The only one I KNOW fits is made, I think online pro may as well, you've got no chance at a pfab unless your looking for a log, I don't see by those wouldn't fit but I can't say for sure as I am only speculating

 

my guess would be that they are easier to build and cost less out of pocket for them?? Also they are a Stage1 type build so they dont want people to think they are to complex. KEEP IT SIMPLE STUPID!! type of thing.

Logs have one wastegate, little heat, no or little relocation of items needed, great for 300-400whp, can be massed produced in very little time (cast type) or have very few welds to fail.

Also like you said they are Cheap, Reliable, Longevity and, Fitment is easier to get spot on. This type of manifolds will keep sales up and warranty claims down. All this in turn keeps money in there pockets.