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None of which allows a 3.5 dp nor ac at the same time.
does someone make a 3.5dp with AC? i think impossible
Originally Posted by nemsin
Fullrace offers a wide assortment of manifolds for fitting EFR turbos to the Evo.
some people do not like the fullrace manifolds, they want something else. me, i like the fullrace manifold. but i remove a/c to fit bigger downpipe with 1.45 a/r
Originally Posted by 211ratsbud
That does seem like a lot of gain for minimum effort.
maybe minimum effort on the internet!! 3.5" downpipe in evolutionX is very tricky, I lose skin on my hands
The head port should actually be larger then the runner diameter to some degree. It should have some excess volume to allow the initial blow-down to exit the valve quickly and then should taper in to recover the velocity as it progresses into the manifold.
I am of the sentiment that you want minimum cross section that can get the job done and focus on stuffing the biggest bend radius in as possible. Bend Radius/Tube Diameter is very important and has a SIGNIFICANT impact on pipe flow losses. I'd rather have a 10% smaller ID and 1.8:1 R/ID ratio then the larger tube with a 1.25 R/ID ratio. That's why I'm not a big fan of weld-els, the bend radius sucks in them.
I will respectfully disagree on the head port vs runner diameter.... I hope I will have some data soon to prove my point.
I will respectfully disagree on the head port vs runner diameter.... I hope I will have some data soon to prove my point.
as for bed radius.. I agree completely..
It's been a while since i've done pipe loss calculations, but my memory serves pretty clear on this one as the results were shocking. As far as pipe flow efficiencies, the surface finish of the internal pipe walls has a MUCH greater influence on flow vs bends. It was something like a 8x difference if i remember correctly. Yes, bends do make a difference. ... but then again we can't exactly do anything about surface smoothness as the carbon buildup will take hold rather quickly.
It's been a while since i've done pipe loss calculations, but my memory serves pretty clear on this one as the results were shocking. As far as pipe flow efficiencies, the surface finish of the internal pipe walls has a MUCH greater influence on flow vs bends. It was something like a 8x difference if i remember correctly. Yes, bends do make a difference. ... but then again we can't exactly do anything about surface smoothness as the carbon buildup will take hold rather quickly.
I don't know why i open my mouth sometimes.
I think the bend radius observation was directed to the fact that manifold builders using ready made elbows are restricted to a set bend radius. Personally I try to avoid lots of cross section changes first..
For anybody wondering (probably nobody lol), BorgWarner have stated mounting the turbo on a 'tilt' is fine but they were unable to put a number on it. We are using 12*, will report back with any issues
3.5" dump is impossible with A/C retained (unless you route the exhaust out the fender or something extreme like that). Even a 3" dump with AC is not ideal, the FullRace 3" solution is cringe worthy :s
maybe you say that cringe opinion to sell your pieces, but fullrace solution works, very nice result every time, they are consistent, last long life time. more than I can say for mostt shops we have purchased from and do not wish for pissing battle on internet
3.5" dump is impossible with A/C retained (unless you route the exhaust out the fender or something extreme like that). Even a 3" dump with AC is not ideal, the FullRace 3" solution is cringe worthy :s
Isn't some qualification required here on which EFR turbo is being discussed? I'd think an EWG 7163 could handle a 3" DP with A/C no problem. Maybe even a B2 frame EWG can handle 3" with A/C no problem?
Not the first time you've accused my of selling so I'm just going to assume you're new to internet forums and don't understand we're all here to share thoughts and opinions.
Above is a pic of Fullrace A/C compatible dump, essentially a brick wall off the back of the turbo. This type of dump would hurt a stock turbo let alone a 8374 moving 79lb/min. More pics and info in here on the Full Race dump: https://www.evolutionm.net/forums/pr...fr7670-23.html
My earlier point is its not ideal, why spend huge $$$ on an EFR set up only to slap on a mediocre exhaust? There are better options out there if you're prepared to sacrifice and fabricate
If your 'Fullrace solution' works so well why not share results/dyno sheets?
Last edited by FossilAus; Oct 8, 2015 at 07:06 PM.
New personal results to date. Strapped the evo on the Dyno at at BMR's Dyno day last Friday for 3-pulls. Temperature in the dyno room was 107 degrees. Started with 38PSI then 40PSI and finished with 862/626 whp/wtq @42PSI.
Last setup was 2.3L (12.5:1 CR) with PTE6467 and car made 835/656 whp/wtq @44PSI.
The build: Wingz 2.1LR (2.4 block, R&R alum 156mm rods and Wiseco 1400HD 10.5:1 86.5mm, stock 88m crank knife edged; assembly fully balanced running race shaft); head fully ported and polished with 1mm os valves and S3 cams; Full-Race small runner bottom mount T4 divided with BW EFR9174 turbo. Kit was designed to keep your AC. This is so far Full-Race's highest hp setup with AC intact.
Enjoy!
Go back a couple pages someone just did one custom.
Originally Posted by efrevo
does someone make a 3.5dp with AC? i think impossible
some people do not like the fullrace manifolds, they want something else. me, i like the fullrace manifold. but i remove a/c to fit bigger downpipe with 1.45 a/r
maybe minimum effort on the internet!! 3.5" downpipe in evolutionX is very tricky, I lose skin on my hands
Isn't some qualification required here on which EFR turbo is being discussed? I'd think an EWG 7163 could handle a 3" DP with A/C no problem. Maybe even a B2 frame EWG can handle 3" with A/C no problem?
our open scroll is EWG 7163 and with AC etc-
I dont see 3.5 " being necessary in this application for us- we have tested 3-3.5" in the 350-650whp range and saw minimal changes-
I wonder if there is much room for the compressor to move upwards? Shorter ac lines and a new belt and bracket to move it up. But heck it would sure allow for a nicer DP bend.
