Miata Turbo Forum - Boost cars, acquire cats.

Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
-   Build Threads (https://www.miataturbo.net/build-threads-57/)
-   -   Downmenteds NA8 E85 EFR7163 (https://www.miataturbo.net/build-threads-57/downmenteds-na8-e85-efr7163-85680/)

psyber_0ptix 04-06-2016 09:17 AM

buy my DW300!

Downmented 04-06-2016 09:18 AM


Originally Posted by psyber_0ptix (Post 1321472)
buy my DW300!

If you match my price that I get it for then I likely will. lol But at that point you would be losing money.

Downmented 04-06-2016 09:20 AM


Originally Posted by Downmented (Post 1321471)
Explain why you feel this way? Not arguing, just curious of your reasoning. I ran 4 additional BOSH 2000cc injectors with a 50/50 mix of e85/93 in my last project without issue.

JK, not sure why the hell I posted EV6 injectors.... Derp :/

Fixed other post

shuiend 04-06-2016 09:29 AM


Originally Posted by Downmented (Post 1321474)
JK, not sure why the hell I posted EV6 injectors.... Derp :/

Fixed other post

I ran older DW1000's back in 2010/2011. I think they were EV6 at the time. I had such a horrible experience with them. After that I cannot ever recommend running any DW injectors. The ID1000's I have bought have been so much better. It is worth it to me to get an injector that I know will be great. If DW switched to EV14's they may work fine, but I won't be the one testing them.

nitrodann 04-06-2016 09:40 AM


Originally Posted by 18psi (Post 1313923)
find the limit of the msm trans before you start contemplating frankenhybrid transmission setups

if this is a street car you'll be surprised at how much power the msm trans will take

my theory is it will take at least 500-600 if you have mechanical empathy and street car

The AZ6 has been proven reliable in low torque 500whp+ cars again and again. Ive got some "built heaps never broken any" numbers and ideas I could share.

Also OP, 10.5 is too low for E85.

Dann

Downmented 04-06-2016 09:48 AM


Originally Posted by nitrodann (Post 1321479)

Also OP, 10.5 is too low for E85.

Dann

Please explain how 10.5:1 is too low of a compression for E85? Frankly I do not believe that to be true in the slightest. There is no "set" CR for running ethanol. Would i benefit more from a higher CR? Yes. Will this CR be better than anything below it? most certainly.

Girz0r 04-06-2016 10:00 AM

IMO, 10.5 is a great medium for that extra timing that you will want. E85 will play a big factor. Also, seeing how the Fab9 setup favors your flavor will be very interesting to see :likecat:

99mx5 posted this link in his build, thought it was worth noting - http://www.enginebasics.com/Advanced...20Headers.html

18psi 04-06-2016 10:13 AM

with 10.5 you can run low boost on pump if you wanted to. go higher and you lose that option

nitrodann 04-06-2016 10:18 AM


Originally Posted by Downmented (Post 1321481)
Please explain how 10.5:1 is too low of a compression for E85? Frankly I do not believe that to be true in the slightest. There is no "set" CR for running ethanol. Would i benefit more from a higher CR? Yes. Will this CR be better than anything below it? most certainly.

Mid 11s still want significantly more timing than stock motors on premium.
What vlad says is a genuine consideration for my customers but only those who want to pay for flex fuel.

Downmented 04-06-2016 10:33 AM

My last project was a Mazdaspeed 6. Direct injection, so we did not have any options for aftermarket stock injectors, so we decided to add an additional fuel rail on the intake manfiold with 4x 2000cc injectors, motor had 10.6:1 CR. On 93 alone it made about 500whp before it was knock limited. Switched to a 50/50 mix of e85/93 and picked up over 250whp and at that time was limited by the turbo more or less. I do not see any issues with the 10.5:1 pistons i have chosen. :)

With the Miata i also plan to run an AEM flex fuel sensor.

nitrodann 04-06-2016 10:38 AM

Im not saying it wont work, Im saying that for a BP, dedicated E85, 10.5 is below optimum. Specifically I can say thats true anything this side of 400whp.

If you have something different sweet, it wasnt an attack.

Girz0r 04-06-2016 10:54 AM


Originally Posted by 18psi (Post 1321488)
with 10.5 you can run low boost on pump if you wanted to. go higher and you lose that option


Originally Posted by Downmented (Post 1321495)
With the Miata i also plan to run an AEM flex fuel sensor.

Options :likecat: I like em.

And that EFR goodness will be turn't up without worry.

Chooofoojoo 04-06-2016 11:06 AM


Originally Posted by 18psi (Post 1321488)
with 10.5 you can run low boost on pump if you wanted to. go higher and you lose that option

I'm running 9.5psi right now on my 10.5:1 motor + efr6758 + shitty CO 91 piss juice.

No det :likecat: But also no glory. :hatecat:

Downmented 04-06-2016 11:08 AM


Originally Posted by Chooofoojoo (Post 1321507)
I'm running 9.5psi right now on my 10.5:1 motor + efr6758 + shitty CO 91 piss juice.

No det :likecat: But also no glory. :hatecat:

Run direct port meth then you can haz all the glory!

Downmented 05-02-2016 06:43 AM

3 Attachment(s)
Well, I FINALLY got everything back from the machine shop, I was initially quoted a two week turn around time, and it ended up taking eight weeks total... smh

Oil pump should be here soon, which means I "should" be able to get the motor assembled this weekend. Once that is completed I will be able to get the turbo mocked up and lines sorted out so I can drill/ tap the oil pan.

Baby steps

https://www.miataturbo.net/attachmen...ine=1462185808

https://www.miataturbo.net/attachmen...ine=1462185808

https://www.miataturbo.net/attachmen...ine=1462185808

Downmented 05-04-2016 12:26 PM

1 Attachment(s)
So, when I purchased the BP4W head, it did not have the nuts/ studs for the intake/ exhaust manifolds to bolt to the head, so I called Mazda up yesterday to order them, and they want $11 per stud.... NOPE, not doing that. So I am curious if anyone knows of a less expensive option or the dimensions/ pitch of them so I can attempt to replicate them elsewhere.

Oh, and I got the oil pan back from being cleaned yesterday, so I was able to get the engine on the stand now. (yes i realize it has to come back off for the oil pump, it was going to need to come back off anyway for the baffle/ pickup/ and to drill and tap for oil drain.)https://www.miataturbo.net/attachmen...ine=1462379181

aidandj 05-04-2016 12:31 PM

MiataRoadster fastener kits - exhaust manifold - MiataRoadster - High-performance customer service...and parts for Roadsters


Downmented 05-04-2016 12:39 PM

Gracias Senior! Now just gotta find the intake side.

aidandj 05-04-2016 12:48 PM

I dont think so

18psi 05-04-2016 12:57 PM

I have a set of exhaust OEM studs I can probably ship to you for 20 total?


All times are GMT -4. The time now is 01:21 PM.


© 2024 MH Sub I, LLC dba Internet Brands