Borg Warner EFR series? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

GUNMETALV35 · 03-26-2011, 09:07 AM

I've been doing a little research on a turbo upgrade for the near future. I've decided to stay bottom mount as my end state for power is anything less than, but relatively close to, 400hp.

I've seen some interesting builds done with a GT2871 .64 a/r that have reached and surpassed that mark. But, the more I read about the BW EFR series, the more I'm interested. Specifically the 6258 model.

I've heard (but I can't find details) that the 6258 will fit the stock SR20DET manifold with "very, very slight modifications." So I'm wondering what that means exactly.

Has anyone tried this yet? If so, what other considerations for fabrications are there? i.e. oil/water lines etc.

Om1kron · 03-26-2011, 12:49 PM

New EFR Turbos. - Nissan Road Racing Forums

read... it wont, the guy is going bottom mount and is using a tomei manifold cut at the flange and angled about 45 degree's and re-welding it together for clearance. There is no off the shelf bottom mount manifold that will work with the bottom mount, and it wont clear the oil fittings on the block on the stock iron manifold.

GUNMETALV35 · 03-27-2011, 04:37 AM

Thanks for the link. I'm subscribing to see the end results. If his dyno's on pump gas are impressive enough, I might take the same venture. I have a few months to research alternatives before I pull the trigger on my next choice of turbo.

guitaraholic · 03-27-2011, 06:37 AM

Actually on the Stock Manifold it will work. Here is a quote from konjiki7

"Stock manifold - The bov on the compressor hits the #1 runner. When clocked the bov makes contact with the water neck fitting. Water neck can be modded to accommodate."

E30Napalm · 05-12-2011, 04:46 PM

I read konjikis posts. Loaded with incorrect part numbers and measurements. The stock iron manifold WON'T work. Period.

I have the EFR 6258. On my SR20DET. Im using an Ebay OBX top mount manifold that i flipped upside down(cut reweld flange making it a bottom mount.) cut off, and turn the turbo flange 20 degrees. did it in an afternoon. Fits like tits, and I'm using s14 taka oil/coolant lines.The engine is in a bmw. Whole manifold with labor I'm only in for like 300 bucks, and shi*t is tight looking.

Stock turbo manifold position is WAY too far back. EFR's have a big ass that sticks out further back. Trust me, I have MUCH time into figuring a manifold solution that isnt 1500 bucks. Ill have some pics in the near future.

E30Napalm · 05-13-2011, 11:32 AM

nieko · 05-14-2011, 11:16 AM

Pictures sound cool.

lewisfk · 05-14-2011, 12:42 PM

i emailed full race and they told me it would be 8-10 weeks to get efr turbo,im going top mount with t-4 flange. They love the turbo so much there making a new manifold around it! just go top mount!

E30Napalm · 05-16-2011, 11:00 AM

Quote:

Originally Posted by lewisfk

i emailed full race and they told me it would be 8-10 weeks to get efr turbo,im going top mount with t-4 flange. They love the turbo so much there making a new manifold around it! just go top mount!

The t4 manifold they make isnt news. 1550 for a manifold wasnt in my budget. Its a nice piece of work. Good for the guy who lacks DIY skills.

The engine is in a BMW. Topmount was a no go.

lewisfk · 05-16-2011, 08:19 PM

[QUOTE=E30Napalm;4047529]The t4 manifold they make isnt news. 1550 for a manifold wasnt in my budget. Its a nice piece of work. Good for the guy who lacks DIY skills.

The engine is in a BMW. Topmount was a no go.[/QUOTE

ya i know about the t4 manifold i have a t3 and im going to buy the adapter so i can use the efr turbo with a t4 flange. the t4 turbos have bov built in but no wastegate! i might buy the t4 manifold if someone buys my t3 twinnscroll manifold.

tunermt · 07-10-2012, 03:07 AM

Some great new options available for SR and KA using the EFR's

ran one on my S13 a couple years back while doing some testing for Full Race and BW.

irishflame27 · 07-11-2012, 06:40 PM

BW EFR stuff is nice for sure, but they are expensive and have lonnnggg lead times to get, why not stick with garrett like you said? The GT2871 or 2876 would be perfect for what you want to do, and are more compact than the EFR stuff, if your looking for a great place to buy look here at cheapturbo.com

tunermt · 07-12-2012, 07:19 AM

We've been doing a lot of GTX series turbos recently for customer cars. Hot deals for SR20, ka and rb options!

03-26-2011, 12:49 PM	#2
Om1kron Post Whore! Join Date: Sep 2004 Location: Granada Hills, CA Age: 44 Posts: 6,992 Trader Rating: (15) Feedback Score: 15 reviews	New EFR Turbos. - Nissan Road Racing Forums read... it wont, the guy is going bottom mount and is using a tomei manifold cut at the flange and angled about 45 degree's and re-welding it together for clearance. There is no off the shelf bottom mount manifold that will work with the bottom mount, and it wont clear the oil fittings on the block on the stock iron manifold. __________________ Wayne Edwards https://om1kron.blogspot.com

05-12-2011, 04:46 PM	#5
E30Napalm Join Date: May 2011 Location: Edmonton Alberrrrrta Age: 52 Posts: 25 Trader Rating: (0) Feedback Score: 0 reviews	I read konjikis posts. Loaded with incorrect part numbers and measurements. The stock iron manifold WON'T work. Period. I have the EFR 6258. On my SR20DET. Im using an Ebay OBX top mount manifold that i flipped upside down(cut reweld flange making it a bottom mount.) cut off, and turn the turbo flange 20 degrees. did it in an afternoon. Fits like tits, and I'm using s14 taka oil/coolant lines.The engine is in a bmw. Whole manifold with labor I'm only in for like 300 bucks, and shit is tight looking. Stock turbo manifold position is WAY too far back. EFR's have a big ass that sticks out further back. Trust me, I have MUCH time into figuring a manifold solution that isnt 1500 bucks. Ill have some pics in the near future. Last edited by E30Napalm; 05-13-2011 at 07:52 AM.. Reason: edit*

07-10-2012, 03:07 AM	#11
tunermt Zilvia Junkie Join Date: Aug 2008 Location: MT, AZ, Seoul, Bangkok Posts: 393 Trader Rating: (0) Feedback Score: 0 reviews	Some great new options available for SR and KA using the EFR's ran one on my S13 a couple years back while doing some testing for Full Race and BW. __________________ GTR Parts Buy JDM Cars

07-12-2012, 07:19 AM	#13
tunermt Zilvia Junkie Join Date: Aug 2008 Location: MT, AZ, Seoul, Bangkok Posts: 393 Trader Rating: (0) Feedback Score: 0 reviews	We've been doing a lot of GTX series turbos recently for customer cars. Hot deals for SR20, ka and rb options! __________________ GTR Parts Buy JDM Cars

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03-26-2011, 09:07 AM	#1
GUNMETALV35 Zilvia Member Join Date: Jul 2010 Location: Raleigh, NC Posts: 151 Trader Rating: (5) Feedback Score: 5 reviews	Borg Warner EFR series? I've been doing a little research on a turbo upgrade for the near future. I've decided to stay bottom mount as my end state for power is anything less than, but relatively close to, 400hp. I've seen some interesting builds done with a GT2871 .64 a/r that have reached and surpassed that mark. But, the more I read about the BW EFR series, the more I'm interested. Specifically the 6258 model. I've heard (but I can't find details) that the 6258 will fit the stock SR20DET manifold with "very, very slight modifications." So I'm wondering what that means exactly. Has anyone tried this yet? If so, what other considerations for fabrications are there? i.e. oil/water lines etc.

03-27-2011, 04:37 AM	#3
GUNMETALV35 Zilvia Member Join Date: Jul 2010 Location: Raleigh, NC Posts: 151 Trader Rating: (5) Feedback Score: 5 reviews	Thanks for the link. I'm subscribing to see the end results. If his dyno's on pump gas are impressive enough, I might take the same venture. I have a few months to research alternatives before I pull the trigger on my next choice of turbo.

03-27-2011, 06:37 AM	#4
guitaraholic Zilvia Junkie Join Date: Jun 2006 Location: Spanish Fort, AL Posts: 430 Trader Rating: (0) Feedback Score: 0 reviews	Actually on the Stock Manifold it will work. Here is a quote from konjiki7 "Stock manifold - The bov on the compressor hits the #1 runner. When clocked the bov makes contact with the water neck fitting. Water neck can be modded to accommodate."

05-13-2011, 11:32 AM	#6
E30Napalm Join Date: May 2011 Location: Edmonton Alberrrrrta Age: 52 Posts: 25 Trader Rating: (0) Feedback Score: 0 reviews

05-14-2011, 11:16 AM	#7
nieko Post Whore! Join Date: Sep 2007 Location: Westminster Age: 34 Posts: 2,695 Trader Rating: (14) Feedback Score: 14 reviews	Pictures sound cool.

05-14-2011, 12:42 PM	#8
lewisfk Zilvia FREAK! Join Date: May 2009 Location: North Austin, Texas Age: 44 Posts: 1,163 Trader Rating: (13) Feedback Score: 13 reviews	i emailed full race and they told me it would be 8-10 weeks to get efr turbo,im going top mount with t-4 flange. They love the turbo so much there making a new manifold around it! just go top mount!

05-16-2011, 08:19 PM	#10
lewisfk Zilvia FREAK! Join Date: May 2009 Location: North Austin, Texas Age: 44 Posts: 1,163 Trader Rating: (13) Feedback Score: 13 reviews	[QUOTE=E30Napalm;4047529]The t4 manifold they make isnt news. 1550 for a manifold wasnt in my budget. Its a nice piece of work. Good for the guy who lacks DIY skills. The engine is in a BMW. Topmount was a no go.[/QUOTE ya i know about the t4 manifold i have a t3 and im going to buy the adapter so i can use the efr turbo with a t4 flange. the t4 turbos have bov built in but no wastegate! i might buy the t4 manifold if someone buys my t3 twinnscroll manifold.

07-11-2012, 06:40 PM	#12
irishflame27 Join Date: Jan 2005 Location: AZ Posts: 36 Trader Rating: (0) Feedback Score: 0 reviews	BW EFR stuff is nice for sure, but they are expensive and have lonnnggg lead times to get, why not stick with garrett like you said? The GT2871 or 2876 would be perfect for what you want to do, and are more compact than the EFR stuff, if your looking for a great place to buy look here at cheapturbo.com