Supra Forums banner

1 - 20 of 41 Posts
V

·
Guest
Joined
·
0 Posts
Discussion Starter #1
How many types of cast single turbo manifolds are there and which is the best? Also who sells them and whats the cost?
And is there a huge difference from a header? THanks!
 

·
Registered
Joined
·
382 Posts
Turbonetics sells one for around $600-650. I have asked in the past about this same subject on this forum but no one seems to know anything about them.E-mail me to let me know any info. Good luck.
 
A

·
Guest
Joined
·
0 Posts
Discussion Starter #3
I had one at one point. They are seriously inferior to a header. Very restrictive. No tubes, just a log. Ever seen a stock MKIII turbo header? Very similar in shape.
 

·
Super Moderator!!ON PATROL ALL OVER!!
Joined
·
10,459 Posts
well im going to try a cast manifold set-up ....and see how it goes
this guy (henrie) made i belive over 500rwhp with a cast manifold and i think he had a sp63 with .68 ar ...but dont quote me on that !turbo!

click here to see the vid
 

·
Registered
Joined
·
1,227 Posts
I've got the cast manifold, with a small shaft T-62 turbo, with Greddy 3-row, SP fuel system, VPC, ect... Dynoed 567 RWHP at 25 psi with the 62, with about 11.1 a/f (fairly rich), no tuning, and was getting spark blow-out up top. I just got my SP70 yesterday (thanks Marko and Lar), and will hit the dyno up soon. I am under the impression that this manifold is NOT nearly as restrictive as most people think. I guess we shall soon see!:D With that little of a turbo (the 62), and making that much power at only 25 psi tells me that it is not that restrictive. I will post my #'s when I get them.

Tim
'94 T-62 (SP70 soon)
'91 Stealth TT
 

·
Registered
Joined
·
3,636 Posts
It's not as pretty but it's cheaper and Dimitri has some kits utilizing them that are pretty reasonable as singles go. I've gotten the impression that wastegate selection is more difficult. What would really help would be to see two cars dynoed with mostly the same stuff along with backpressure measurements. To look at the two it would seem "obvious" that the header is the way to go but it's nowhere near as simple as looking at it and assuming. Just not sure which way I'll go but the AEM ECU and fuel are first on my list (sigh).
 

·
Super Moderator!!ON PATROL ALL OVER!!
Joined
·
10,459 Posts
if you can post or email me some pics !
basupra said:
I've got the cast manifold, with a small shaft T-62 turbo, with Greddy 3-row, SP fuel system, VPC, ect... Dynoed 567 RWHP at 25 psi with the 62, with about 11.1 a/f (fairly rich), no tuning, and was getting spark blow-out up top. I just got my SP70 yesterday (thanks Marko and Lar), and will hit the dyno up soon. I am under the impression that this manifold is NOT nearly as restrictive as most people think. I guess we shall soon see!:D With that little of a turbo (the 62), and making that much power at only 25 psi tells me that it is not that restrictive. I will post my #'s when I get them.

Tim
'94 T-62 (SP70 soon)
'91 Stealth TT
 

·
Registered
Joined
·
1,022 Posts
As far as wastage selection, you've got:

Turbonetics Racegate
Tial Gates
Innovative Turbo wastegates

All should work fine. Everyone I've talked to with the racegate and cast manfiold says they can get spring pressure with it.

Yeah the thing looks like it flows like dog shit, but if you look at some of the dynos on Steve V's site, you'll see people make decent power with it (at least on pump gas boost). Unfortunately no one has dynoed with it, a good sized turbo, FMIC and VPC/dual MAF to see if it will put down close to ~540-550 like people do with a header.

Everyone who has one says it spools faster than a header. Dunno if its true, kinda makes sense, heat loss, exhaust gas velocity, and all that....

My cast manifold + T66 should be up and running in a few days.
 

·
Registered
Joined
·
3,636 Posts
Looking forward to your results!

Keep us posted please - I'm interested in seeing how you do compared to others running headers. I guess you could always Extrude it?
 

·
Registered
Joined
·
391 Posts
I called Turbonetics on this to get a price and it ran for about $625. I also asked what HP the manifold was good for and he stated "about 700-750 HP". My last question was, "is this a log style manifold?" and he replied that it is not a log style but rather an equal length tubular manifold similar to what's in their catalog. Attached is a scan from Turbonetics 2001 catalog of the header. This is what I was told.;)

 

·
Registered
Joined
·
391 Posts
Grant said:
As far as wastage selection, you've got:

Turbonetics Racegate
Tial Gates
Innovative Turbo wastegates
A solution you might also want to consider if you want to use another brand of wastegate is to fabricate some sort of small stand-off or "mid pipe". You would have a flange machined to mate to the flange on the header, weld in a small (1/2" long) stainless tube and weld on another flange on the opposite end machined to fit the flange of the wastegate you'd want to use. Just an idea!!:D
 

·
Super Moderator!!ON PATROL ALL OVER!!
Joined
·
10,459 Posts

·
Registered
Joined
·
391 Posts
Grant said:
Wow, that is a completely different manifold from what I have. Are you sure that is for the MKIV? If so, it must be something new.

This is what I have:

http://www.directedengineering.com/turboneticsmanifold1_med.jpg
Hey Grant, I don't want to say that the manifold is for the MKIV for sure. I was just passing along some info. I was told by the rep. I felt that what he told me was kinda "SUSPECT" anyway because every pic I've seen of a cast manifold looks like the one you have.
 

·
powered by
Joined
·
998 Posts
ATLSUPDAWG#2 said:
I called Turbonetics on this to get a price and it ran for about $625. I also asked what HP the manifold was good for and he stated "about 700-750 HP". My last question was, "is this a log style manifold?" and he replied that it is not a log style but rather an equal length tubular manifold similar to what's in their catalog. Attached is a scan from Turbonetics 2001 catalog of the header. This is what I was told.;)



Thats the manifold I have on my supra, my mk3 that is. That is the copy of the old HKS manifold they made for the mk3--
 

·
Registered
Joined
·
286 Posts
You can tell that manifold is not for the mkiv because of the evenly spaced runners of it. The mkiv has a larger gap between the 3 and 4 exhaust port. They should make one like that though, looks nice for a cast peice.
SH
 

·
Registered
Joined
·
391 Posts
HoustonSC300 said:
You can tell that manifold is not for the mkiv because of the evenly spaced runners of it. The mkiv has a larger gap between the 3 and 4 exhaust port. They should make one like that though, looks nice for a cast peice.
SH
Well it's obvious they have the capability to make a decent looking manifold like that. I too can't see why they produced an eye-sore like that log style manifold for the MKIV and not one like in the picture. AND, for $600ish they'd probably push a lot more if they did. Anyhow thanks for clearing it up. I knew it was "SUSPECT", I just knew it:mad:
--B--
 
R

·
Guest
Joined
·
0 Posts
Discussion Starter #19
ATLSUPDAWG#2 said:
Well it's obvious they have the capability to make a decent looking manifold like that. I too can't see why they produced an eye-sore like that log style manifold for the MKIV and not one like in the picture.
Looks to me like the only thing Turbonetics is making is copies of other peoples stuff

Rob_O
 
P

·
Guest
Joined
·
0 Posts
Discussion Starter #20 (Edited)
Will SP's turbo's bolt up to the Turbonetics cast manifold? If so, could someone post a picture? The way it looks the turbo would mounted off the cast manifold funny. Thanks!
 
1 - 20 of 41 Posts
Top