Cams or 18K Turbo
Thread Starter
Evolving Member
Joined: Sep 2002
Posts: 196
Likes: 5
From: KSA
Which one would u go with?
Turbo all day. Not even a comparison.
The reason so many stock manifolds crack after turbo replacement, even stock frame appearing turbo replacement, is that people are too lazy and can't be bothered to put all the bolts back to support everything properly.
The reason so many stock manifolds crack after turbo replacement, even stock frame appearing turbo replacement, is that people are too lazy and can't be bothered to put all the bolts back to support everything properly.
I don't know about the cosworth because they post real numbers for duration, only advertised. The Kelford A's are small, even compared to S1's.
After reading alot more in the forum, i think i should go with a Turbo upgrade and keep the stock cams for much better gains.
Now which turbo to go with is another research topic, but 18k and green are on the top of my list for fast spooling turbo that are direct replacement. I still want to use my Akravopic downpipe.
Any other turbo that competes with these two please tell me so i can research them further.
Now which turbo to go with is another research topic, but 18k and green are on the top of my list for fast spooling turbo that are direct replacement. I still want to use my Akravopic downpipe.
Any other turbo that competes with these two please tell me so i can research them further.
MHI 18k all the way. OEM reliability, and same compressor as the green. It uses a larger MHI turbine, and it spools VERY close to stock. Capable of 475-500whp on E85 with cams.
Evolved Member
Joined: Nov 2015
Posts: 1,066
Likes: 29
From: Tri-State NY/NJ/CT
I just bought one.
If I do nothing but swap the turbo, MAP exhaust manifold, and 3-port what do you think I might get on 93 pump gas?
If I do nothing but swap the turbo, MAP exhaust manifold, and 3-port what do you think I might get on 93 pump gas?
Last edited by moparfan; Dec 5, 2016 at 03:24 PM.
Evo X Cams
I think i got this picture from EvoXForums (can't remember). I also was curious about the GSC 1/2 vs Mx1 with the MHI 18K setup.
I remember razorlab mentioning something about a billet housing if you upgrade the cams. (https://www.evolutionm.net/forums/ev...l#post11680448)
Billet Housing: https://www.driven-fabrication.com/p...-mivec-housing
That billet housing is if get something like the S2. But all it does is mask the true issue which is that the exhaust MIVEC doesn't get enough oil, and lets the phaser bang around inside itself, which is what breaks the housing when you get big cams/stiff springs/high revs.
Evolved Member
Joined: Nov 2015
Posts: 1,066
Likes: 29
From: Tri-State NY/NJ/CT
Due to the area I live, with road blocks and mobile test vans, I want to stay emissions compliant.
My thought is I would just keep the stock exhaust and do the best I can within that restriction.
Ideas for the best I can do within that big caveat?
My thought is I would just keep the stock exhaust and do the best I can within that restriction.
Ideas for the best I can do within that big caveat?
