Borg Warner EFR Series Turbo's V 2.0

[Nismo 3.2ish]

20 hours ago, Piggaz said:

"Whatever size you think you need, go one up".

 

*Unless you're Pete. 

I reckon,  go one down for the street or find a slope to get it going ? 

[Lithium]

7 minutes ago, Nismo 3.2ish said:

I reckon,  go one down for the street or find a slope to get it going ? 

You need to go in a "normal spec" GTR after your own sometime, and realise that maybe what you're trying to build isn't a GTR at all

[Nismo 3.2ish]

11 minutes ago, Lithium said:

You need to go in a "normal spec" GTR after your own sometime, and realise that maybe what you're trying to build isn't a GTR at all

From what I have heard, your right. I only drove 1 car from the getgo, built motor and a T78 , why wouldn't I try to change it , it was crap on the street , no, it was the worst car I have ever owned , not the cars fault, it was mine for not knowing anything about modified cars, silly me , lol.

The other  GTRs I have been in were great but worked over so I had never been in a stock car, but I have not seen any "stock" GTRs on this site or anyother sites that have not changed something on their car to make it better.

Now I have a car "I" like to drive ,  lots of help from SAU blokes   

Not sure what to call it after your statement, maybe GTRRRRRRRRRSTEFR

[sneakey pete]

I ended up going up a size to the 8374, and while I will be happy with it I also think I would have been quite happy with a 7670 aswell. Maybe even more so for day to day driving.
i need to pull my finger out and fix the niggly issues and get it tuned on full boost and E85 though

[Piggaz]

Any ETA for the tune pete?

A high comp 2.8 doesn't need a 7670. Needed a 8374/1.05! 

[Mick_o]

1 hour ago, Piggaz said:

Any ETA for the tune pete?

A high comp 2.8 doesn't need a 7670. Needed a 8374/1.05! 

THAT!^^^ You haven't even driven the thing properly lol so dont comment till its sorted ?

[minesskyline]

9 hours ago, Lithium said:

Cheers for the updates - that is actually even laggier than I expected, but of the ilk.  Glad you are at least not having issues building higher boost levels.... is the higher boost/E85 tune still being done today?

641+whp on 91 on a Mustang dyno isn't kidding around, that will be very interesting with E85 in it

 

The car was a dog under 4k rpms before and that hasn't changed now. However, it feels like a better drive overall, especially shifting gears. It doesnt seem like the boost really ever drops which feels fan-f**king-tastic. I don't have the dyno for e85 on me (will post tomorrow) but it made 758 on e85 tuned semi-conservatively, which after driving I am pretty happy with. Will have more updates to follow tomorrow.

[Lithium]

Sounds not too bad all things considered!  So was there any reason why it's tuned conservatively or not pushed as hard as it initially sounded like you would?  They should have HEAPS in reserve.

Keen to see the dyno plots and the further updates you mentioned

[sneakey pete]

No tune for a few more weeks still.
Got 3.5" exhaust made up and moved the pod filter off of the turbo over to the old washer bottle spot so it can suck in air from the guard at least, so nothing really left to do apart form track down a very small oil leak (turbo drain i think) and a idle noise that started up (possibly new exhaust?)

Went for a drive over nebo. Car wasnt exactly coming from a good palce for that but dayum its not half bad now... and will only get better with E85.

Certainly don't think the 7670 would have been better enough to justify the 60+kw drop on the top end.

[3LGODZILA]

Hey guys I'm a bit late to the party!

anyone running a 9174 on their 26 or 30 yet? The evo boys seem to be making good numbers out of them but haven't heard much from the GTR community

and what are people's thoughts on cast vs alloy housings?

[Griffin]

I've got one to go on my 26, it's an alloy chra as I was given that due to no iron ones in stock.

Not sure if there is any benefit. 

I haven't started fitting it up yet.

[3LGODZILA]

Will be looking forward to see how it goes!

what size housing did you get and what power/ goals are you aiming for?

I only recently found out that the alloy housing is an option, cost to me isn't a factor I guess if reliability isn't a sacfrifice then I'll opt for the alloy one. (I will be water cooling regardless)

[HarrisRacing]

The car was a dog under 4k rpms before and that hasn't changed now. However, it feels like a better drive overall, especially shifting gears. It doesnt seem like the boost really ever drops which feels fan-f**king-tastic. I don't have the dyno for e85 on me (will post tomorrow) but it made 758 on e85 tuned semi-conservatively, which after driving I am pretty happy with. Will have more updates to follow tomorrow.

Have you you tried inducing overlap in the cams a bit? May car (granted on 8374 .92 IWG) spooled 5-600 rpms sooner and made 30 more ft-lbs of tq when I rolled the cams in. HUGE difference on boost threshold and mid range. I did lose 10 hp on top but the car overall is def faster and easier to drive

[Full-Race Geoff]

the 9174's have been very popular lately, for 2 reasons:

-borgwarner has the most bizarre production methodology ever, and they are spititng out 9174s only  (not 8374, not 9180)

-the 9174 has an internal pricing error causing it to be the least expensive of B2 frame EFRs. 

we get shipments of 9174 with iron and alloy bearing housing.  The main factor for consideration if you will use alloy  is that watercooling is mandatory.  the iron turbos are not nearly as picky.  however the alloy turbos are crazy lightweight, its a 7lb difference

Edited September 1, 2017 by Full-Race Geoff

[Griffin]

I was amazed how light the alloy ones are. 

Why is the 9174 so cheap? That part reason why I got it. 

I still haven't got a rear housing yet . Got stuffed around by Sparesbox. 

Was waiting til gcg got them in stock as shipping from overseas was a killer.

13 hours ago, 3LGODZILA said:

Will be looking forward to see how it goes!

what size housing did you get and what power/ goals are you aiming for?

I only recently found out that the alloy housing is an option, cost to me isn't a factor I guess if reliability isn't a sacfrifice then I'll opt for the alloy one. (I will be water cooling regardless)

Will be using 1.05. don't have any power goals, whatever it makes on 26 -30 psi on e85.

[Piggaz]

@Full-Race Geoff

Have you seen a 8373/1.45 result at all?

Any news on the 8474?

[minesskyline]

On 9/1/2017 at 7:35 AM, HarrisRacing said:

 

 

Have you you tried inducing overlap in the cams a bit? May car (granted on 8374 .92 IWG) spooled 5-600 rpms sooner and made 30 more ft-lbs of tq when I rolled the cams in. HUGE difference on boost threshold and mid range. I did lose 10 hp on top but the car overall is def faster and easier to drive

 

I am not sure and I don't personally know how to check. I would have to ask the tuner. I also think that would require a retune as well. The shop is remote from me so it's not easy to make changes unless I go elsewhere.

[minesskyline]

On 8/28/2017 at 3:54 PM, Lithium said:

Sounds not too bad all things considered!  So was there any reason why it's tuned conservatively or not pushed as hard as it initially sounded like you would?  They should have HEAPS in reserve.

Keen to see the dyno plots and the further updates you mentioned

After speaking with the tuner further, I believe that 750 was all he could get out of the setup. If they can do more, I don't know what other changes could be made to extract more power.

[minesskyline]

@Full-Race Geoff Do you know why the wastegates would allow small amounts of oil to be blown out from them? I have the turbosmart wastegates from your site.

[Lithium]

On 03/09/2017 at 3:40 AM, minesskyline said:

After speaking with the tuner further, I believe that 750 was all he could get out of the setup. If they can do more, I don't know what other changes could be made to extract more power.

Interesting - I would have expected more than that!    Still, must be pretty solid even with that?

On 03/09/2017 at 3:42 AM, minesskyline said:

@Full-Race Geoff Do you know why the wastegates would allow small amounts of oil to be blown out from them? I have the turbosmart wastegates from your site.

That doesn't sound great