64lb/min is the max flow the 7670 compressor is capable of - and the choke point for that turbo, regardless of what intercooler or fuel you use. When it is at 64lb/min of air you will require a large/efficient intercooler and E85 or high octane fuel because the turbo's air is warm due to operation outside the high efficiency islands.

just like the larger turbo will not necessarily make you faster on the track - a heavily ported head is not necessarily the best thing to do for a 7670 time attack application. The evo headport stock is outstanding, with a simple and effective radius valvejob you can gain plenty of flow, without even touching the ports. of course this is up to you and your preference however. a valvejob + valvetrain + good intake manifold seems to me to be a very attractive setup (thats my plan at the moment)

We continue to receive EFR shipments at the beginning of each month, based on BW's initial early production schedules (this will change by april/may and there will be much more availability). Currently, the singlescroll EFR turbos continue to trickle in however the investment cast twinscroll turbines are not ready. The twinscroll housing manufacturer did not hold the surface finish/consistency/tolerance that BW demands. BW won't ship EFR's that aren't perfect, so they made the investment casting facility get busy and re-run all the twinscroll housings -> moving twinscroll delivery to march.

april will be a good time frame!

 

geoff, what material is the chra made out of? any coating options for it?

 

The bearing housing is made of cast iron and it can rust if not coated. The customer can paint it, if desired, and the paint will “stay put” since the CHRA actually runs pretty cool with the water. On our cars we coat them with WD40 from time to time and they stay looking pretty nice, no rust

 

What i really like about these new turbos are the Turbines in them.

If what I am guessing is right, they are using Gamma Titanium Aluminide:
http://en.wikipedia.org/wiki/Titanium_aluminide

Which is a step forward from the Titanium Nickel Alloy used in older turbines

A Stainless Steel turbine housing, and Dual Ceramic ball Bearings.

http://www.turbodriven.com/en/perfor...urbos/efr.aspx

 

Have these arrived yet...

 

these turbos are trickling in...let us know if you want to get one.

 

Are these the same turbos that Bullseye turbo sells?

 

No.

 

I can't wait for my 9180!!

 

agreed ^^^^ those are the big differentiators that make these EFR turbos stand out compared to other turbos. The other features like integrated BOV, oil restrictor, vband compressor housing, etc are all nice features also, just not as

these are certainly not the same

singlescrolls continue to arrive, twinscrolls are taking some time as we wait for the housings

 

+1!!!! TS FTW

 

pictures stolen from this thread, i hope he doesn't mind me using them.

http://forums.clubrsx.com/showthread.php?t=755332

GT3582R vs BW EFR 8374, both with 0.82 exhaust housing.







Please bear in mind that a correction factor of "SAE" is very easy to botch with ambient air temp sensor placement, i'd be much happier with uncorrected.

 

thanks for posting ^^^

it seems the 8374 has the same spool, but makes more power everywhere. I'm really temped to get the 8374, but the 7670 looks like it will do so well.

 

I'm waiting on the 1.05 TS T4 EFR7670.
Can't wait!

 

GEOFF realistically what would be the price of a kit from your guys with this turbo. If it has a wastegate built in then that obviously lessens the cost.

I'm trying to determine pricing between this a regular ETS tubular kit with a HTA86 or a BR FF HTA86

Obviously the ETS kit would be cheapest. The BR kit will have some hidden costs (half width radiator, Civic Condensor and compressor for AC, etc).

I went on your site but I didn't see an option for the 8374 with you tubular manifold. It appears those would be the only things I would need. I already have upgraded IC and piping.