I wanted a cast manifold, twin scroll. Unfortunately, that rules out the latest G-series which stinks. I really did want the updated turbine design.

 

​​​​I thought you were changing manifolds to a t4 or a t3 why I said that

 

Yeah the hew g series is so strange, no twin scroll till you get to their large frame options. Their compressor maps are also not nearly as wide as borg warner's EFR line. I still maintain that borg warner turbo's are the one to get. They still spool faster than the G series in terms of the HP the turbo is capable of.

My question is, why did you want to stick to the MHI flange design instead of going with a regular T4 twin scroll?

I've been messing about with EFR turbo's lately on my stock block motor, the 7163, twin scroll spools faster than stock and hit 420 HP on e85 on my MR (mustang dyno). GSR's should be hitting 440 ish. Keep in mind this is with an extremely conservative tune because this is a road course only car. Regular tunes should see 10+ more hp. It also spools faster than stock and is about 10 lbs lighter than an OEM setup due to its aluminum center housing. The response on this is exactly like an N/A v8, its absolutely insane. With cams & an external BOV mod on the compressor housing, You should be 500-550 depending on dyno and mr vs GSR. I've seen the external bov compressor housing add 40 hp by itself, but i'm not sure how/if it affects spool.

I just put on a 7670 twin scroll to see how this one is on my stock block. There is an incremental increase in transient lag when on track which is forcing me to re-think my throttle applications coming out of corners. The tune still isn't dialed in right so i need to drop it off to someone who actually knows what they're doing lol. I should be knocking on the door of 500hp on e85, but i'm still on stock rod bolts so we shall see.

 

First, thanks a lot for the link.

I think he is really willing to switch to the Artec manifold, which is cast, compact, and very efficient. These manifolds don’t exist in T4 divided nor T3, the only other option is v band.
I’m currently in the same boat, I’m really convinced by Artec stuff for my car typical use, but MHI housing offers not so many options, going V band open to many but you’ll loose the TS benefits. In my case, I’ more concerned by powerband and spool / transcient spool than top numbers.

 

T3,t4, v band > mhi just fyi. Cast mani sure can be longer lasting, but no options for turbos. If your looking for spool go different manifolds and ceramic coat it and be done. You will be much happier you did.

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You are very right! The EFR maps and the performance they provide is THE BEST. However, I was determined to have twin-scroll AND cast stainless manifold. Those were my requirements for durability and spool. That leaves on the MAP or Artec manifold in MHI flange which if you look at the area of the ports is about T4 anyhow. Where you lose a lot is when the OEM MHI turbine housing is bored out and the volute is not appropriately sized. The garrett turbine housing solves that while allowing me to keep twin scroll. If there was a twin scroll v-band cast manifold (like there was long ago), then I would have done the EFR!
I posted a pic above of the MAP manifold mirroring the ARTEC manifold. The ARTEC is a SWISS WATCH compared to the MAP unit!

 

Hey Jaraxle,

newbie to the Evo forum but I’ve been lurking quit a while researching upgrades and whatnot.

Have you considered the Art Gennari turbos? They have a bigger exhaust housing option and I believe even their 55mm can hit 600whp. If you want to keep boost under 32psi, I think their 57mm is optimal especially since that one has a ball bearing option.

regarding a previous post you had, I think those who are getting these turbos (like myself in the future) would probably benefit from your 4” intake if they want to use a larger MAF or go SD.. would just require a 3” to 4” adapter

 

over priced and your paying for a name just my opinion. If I were to overpay for a name I'm going alpha turbo.

 

I love the Garrett turbo, and see no need to change it. The CFRP 4" intake will actually be available soon. When Afe was contacted they wanted a partner business buy in that could not be afforded. This means the intake can be offered but the end buyer would have to get the Afe filter own their own.

 

Sad to see that it is discontinued now. I might install the one I have just to compare it to the turbo I have. Its similar in specs to this turbo that BL is offering as a replacement : https://www.theboostlab.com/evo-x-td...-turbocharger/

 

totally agree it’s expensive.. however I see that all other stock frame upgrades are even more ludicrous. The blouch, the FPs.

I’m fairly new so if you know of better alternatives for stock frame please let me know.

 

Art Gennari is over priced?? Compared to what.. ebay chinese turbos?? AGT has a great track record of reliability and performance vs their competitors, I really don't understand the hate from some people on this forum

 

I never said they were garbage, I said over priced. They are a very nice turbo, but for what you can get for one I'd choose to go a total different route.

Ok after researching I will say prices have come way down since I last looked. Last I looked there were nearly 4k. So with that said if still go for a different setup over stock frame just for the fact of manifolds are still pretty restrictive for a 10.5 cm housing. Compare this 62mm to an http or pte 62 mm not even close. Difference is the ability to use t3 or t4 with a much better flowing non restrictive manifold and hotside

 

I agree after my last post but if you want to have a good turbo setup get away from stock frame. In my opinion and only my opinion I was blown away going from a FP style black turbo to driving a car with a 62mm turbo t3 setup. I switched to a stupidly large turbo and went back to a 6466 and I'll make stupid power and have plenty of response out of the turbo.

 

The ARTEC manifold with the GTX3076 Gen II turbo is a potent combo IMO. I am thinking of strapping it on the local dyno just to get the printout and to double check my tune vs my street tune that is what I am used to for the last 12 years.
The new SST tuning has made the car really perk up as well, and is now making me hold off on upgrading the clutch packs.

"THOSE POOR FOUR PISTONS.." - my Dad whenever he lets me give him a ride. Which is MUCH less frequent since he is in his mid 70's now.