View Full Version : Fitting an EFR turbo
LuckyX2
05-09-2012, 06:20 PM
So I've been looking at EFR's a lot lately, contemplating going with one vs a GTX and one thing that's a big con for the EFR is the fitment.
Looking at this thread though, I got an idea...
borg warner efr - Hardtuned.net - Page 3 (http://www.ttuned.com/forums/index.php?showtopic=479236&st=60)
This guy here, scandyflick, had a few problems. The mount for the boost control solenoid rubbed the manifold, the top of the compressor housing blocked the block's coolant fitting which forced him to go with a banjo fitting instead of an AN fitting and he had to clock it so much that the outlet was blocked by the engine mount.
So my idea is to take one of these things here:
Turbo T25 T28 T2 Flange to T3 Flange adapter T2 to T3 (http://www.speedyracer.com/Turbo-T25-T28-T2-Flange-to-T3-Flange-adapter-T2-to-T3)
except T2 to T2 and use it just to space down the turbo.
Then the housing won't hit the manifold, it will drop below the coolant fitting, it won't have to be clocked and everything should be just fine an dandy or so it seems.
So, do you think this will work or will something else get in the way?
Feel free to share any ideas; I'd like to see more of these turbos on 240's.
GroundPerformance
05-09-2012, 06:38 PM
Use the DOC Race T2x Bottom turbo manifold and it should open up some space for the boost control solenoid. Using the flange spacer will free up some room on the top but there's a good chance that the compressor housing will now hit the engine bracket.
http://www.enjukuracing.com/product_images/k/225/DOCNEWSR__80864_zoom.jpg
http://www.docrace.com/images/SR20T25_Fresh-1.jpg
GroundPerformance
05-09-2012, 06:44 PM
Or run the Full Race Turbo manifold designed around the EFR turbos. But double the price.
Nissan SR20DET T25 EFR Turbo Manifold - Full-Race.com (http://www.full-race.com/store/turbo-manifolds/nissan-sr20-t25-efr-turbo-manifold.html)
http://www.full-race.com/store/images/full/nissan-sr20-t25-efr-turbo-manifold-0.jpg
inopsey
05-09-2012, 06:50 PM
if your going to buy a manifold go topmount twin scroll and a bigger turbo with the efr series. would love to see what the efr 7064 would do on a twin scroll setup with a sr20.
LuckyX2
05-09-2012, 07:17 PM
Those manifolds are both great but I was looking for more of a fix that would work for people's existing manifolds. Plus those are pricey...
What do you mean when you say engine bracket? The arm that goes to the mount?
And inopsy, if I go with an EFR, I'd probably get the 6758. That's likely capable of 450+whp which is more than enough for me. I plan on autocrossing my car so response is king. Even 450whp is overkill and I'd be better off with a 6258 but I just can't resist having more power for track and drag.
The 7064 is a sweet turbo but too big for me.
GroundPerformance
05-09-2012, 08:01 PM
I got you and I do have a simpler fix. It will however cost you...LOL!
Anyways judging from the pics. Trying to use the OE RWD turbo manifold will always present a problem and really no other simpler and cleaner way to do it. Your best move is to use the FWD OE Turbo Manifold. The FWD OE exhaust runners style will give you the clearance for the boost solenoid and since the turbo placement is centered the coolant lines will now be behind the compressor housing itself. However, since the turbo is centered the stock turbo elbow will not clear so you will need to use a 5 bolt to v-band adapter and make a custom elbow.
http://www.williams.co.tt/s15/post/gtir-manifold.jpg
http://mckinneymotorsports.com/images/products/178.jpg
LuckyX2
05-09-2012, 08:08 PM
I got you and I do have a simpler fix. It will however cost you...LOL!
Anyways judging from the pics. Trying to use the OE RWD turbo manifold will always present a problem and really no other simpler and cleaner way to do it. Your best move is to use the FWD OE Turbo Manifold. The FWD OE exhaust runners style will give you the clearance for the boost solenoid and since the turbo placement is centered the coolant lines will now be behind the compressor housing itself. However, since the turbo is centered the stock turbo elbow will not clear so you will need to use a 5 bolt to v-band adapter and make a custom elbow.
Nice tip on the FWD mani!
If I would do it, I'd just fab up a V-band pipe so no V-band to 5-bolt conversion. I'm lucky enough to have a friend with a TIG but we're not about to take on making a whole manifold. Just a V-band elbow shouldn't be hard tho.
GroundPerformance
05-09-2012, 08:13 PM
Nice tip on the FWD mani!
If I would do it, I'd just fab up a V-band pipe so no V-band to 5-bolt conversion. I'm lucky enough to have a friend with a TIG but we're not about to take on making a whole manifold. Just a V-band elbow shouldn't be hard tho.
Thats right! you can get the turbo with V-band so now its much simpler. BTW I take Paypal LOL.. Good luck with the build!
LuckyX2
05-09-2012, 08:38 PM
Thats right! you can get the turbo with V-band so now its much simpler. BTW I take Paypal LOL.. Good luck with the build!
Paypal for a FWD manifold? How much do those go for? Or is it the EFR's that you sell? Do they even make the EFR's with the 5-bolt? I thought it was V-band only.
And I'm probably not going to be ready for the EFR or GTX for another month or two so this was more just to help other people and get some info flowing.
Btw, do you have any side-by-side pictures of the RWD and FWD manifolds? That'd be nice to compare how they're different.
GroundPerformance
05-09-2012, 08:48 PM
Paypal for a FWD manifold? How much do those go for? Do they even make the EFR's with the 5-bolt? I thought it was V-band only.
And I'm probably not going to be ready for the EFR or GTX for another month or two so this was more just to help other people and get some info flowing.
Btw, do you have any side-by-side pictures of the RWD and FWD manifolds? That'd be nice to compare how they're different.
I was initially assuming that it was only available on 5 bolt but I was wrong. No pic but they fit Just fine. FWD SR guys use RWD SR turbo manifold all the time for turbo convertion.
LuckyX2
05-10-2012, 10:42 AM
Something like the "ramhorn" manifold would work too then, right?
SS Series SR20DE/DET/VE FWD Turbo Ramhorn Manifold - Turbos/Turbo Components - Mazworx (http://www.mazworx.com/product/turbosturbo-components/turbo-manifolds/nissan/ss-series-sr20dedetve-fwd-turbo-ramhorn-manifold)
Still a pricey option but there are ebay ones out there for $100 shipped. Probably gonna crack but for $100, whatever.
Mazworx sells theirs as a kit for $300 too for people who can weld well.
inopsey
05-10-2012, 12:52 PM
Those manifolds are both great but I was looking for more of a fix that would work for people's existing manifolds. Plus those are pricey...
What do you mean when you say engine bracket? The arm that goes to the mount?
And inopsy, if I go with an EFR, I'd probably get the 6758. That's likely capable of 450+whp which is more than enough for me. I plan on autocrossing my car so response is king. Even 450whp is overkill and I'd be better off with a 6258 but I just can't resist having more power for track and drag.
The 7064 is a sweet turbo but too big for me.
i wish that you could get these without their wastegate/other hardware, might be direct bolt on to sr stock manifold like that.
hobbs
05-10-2012, 01:33 PM
FWD SR guys use RWD SR turbo manifold all the time for turbo convertion.
They do NOT use the RWD manifold when going turbo on FWD SR20, they use OEM cast manifolds or aftermarket log manifolds. A RWD manifold on a FWD block will cause the turbo to hit the block. Whoever told you that they were using a RWD manifold on a FWD block is nuts.
Anyways.... I have a cast W10 FWD SR20DET manifold for 40 plus shipping if you want it.
LuckyX2
05-10-2012, 02:25 PM
They do NOT use the RWD manifold when going turbo on FWD SR20, they use OEM cast manifolds or aftermarket log manifolds. A RWD manifold on a FWD block will cause the turbo to hit the block. Whoever told you that they were using a RWD manifold on a FWD block is nuts.
Anyways.... I have a cast W10 FWD SR20DET manifold for 40 plus shipping if you want it.
Seems to me like the FWD manifold just shifts the position of the turbo left, not closer to the block.
And aren't the blocks of the FWD/RWD SR20's externally the same? So if it would hit on a RWD, it would hit on a FWD too.
Maybe I'm missing something?
GroundPerformance
05-10-2012, 02:42 PM
They do NOT use the RWD manifold when going turbo on FWD SR20, they use OEM cast manifolds or aftermarket log manifolds. A RWD manifold on a FWD block will cause the turbo to hit the block. Whoever told you that they were using a RWD manifold on a FWD block is nuts.
Actually it does work but obviously it will not be a bolt in ready to go type. It will require some minor fabrication on the turbo elbow side. I've seen it done here locally myself since its to somewhat easier to source out RWD Turbo manifolds for cheap and sometimes free than FWD.
http://img.photobucket.com/albums/v350/ashtonroche/SDC10582.jpg
hobbs
05-11-2012, 10:16 AM
Seems to me like the FWD manifold just shifts the position of the turbo left, not closer to the block.
And aren't the blocks of the FWD/RWD SR20's externally the same? So if it would hit on a RWD, it would hit on a FWD too.
Maybe I'm missing something?
You're missing the fact that on FWD SR motors the turbo is facing the opposite direction when compared to a RWD SR manifold. Thus the 'buldge' of the exhaust housing is facing away from the block which means nissan has the turbo closer to the block on a FWD setup.
Actually it does work but obviously it will not be a bolt in ready to go type. It will require some minor fabrication on the turbo elbow side. I've seen it done here locally myself since its to somewhat easier to source out RWD Turbo manifolds for cheap and sometimes free than FWD.
You can find OEM cast FWD manifolds all over the place, why you would try and use a RWD manifold which requires a custom downpipe is beyond me. Not many FWD guys chose to use a RWD manifold, it's either OEM or aftermarket log/equal length which has been made for the FWD platform. That picture you posted is a pretty hoopite setup, gives you no room to run AC or an intake pipe. I'll try and get some pictures of a RWD and W10 manifold side by side tonight for you guys.
Here's my old setup:
http://i834.photobucket.com/albums/zz265/eskhobbs/b7a95b9e.jpg
GTi-R manifold and O2 housing:
http://i834.photobucket.com/albums/zz265/eskhobbs/bf31af0a.jpg
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