Miata Turbo Forum - Boost cars, acquire cats.

Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
-   DIY Turbo Discussion (https://www.miataturbo.net/diy-turbo-discussion-14/)
-   -   Tan top max HP (https://www.miataturbo.net/diy-turbo-discussion-14/tan-top-max-hp-66091/)

Boomboombambam 05-24-2012 02:17 AM

Tan top max HP
 
I PROMISE i searched
I got a lot of different answers
The anserws I was reading was 7.5psi on the greddy 15g?
but im boosting 10psi, 12 to 1 rise rate disc, highpressure fuel pump and a front mount
I initially started the search to see if i can bump it up to 12psi on my t25 turbo (figured its so tiny)

itd be cool if i can get some personal opinions
And please, i know, Megasquirt, but its not in my budget yet :(

EDIT
Either max hp or psi on that turbo in particular

blaen99 05-24-2012 02:21 AM

http://www.rceng.com/technical.aspx

How about you calculate it yourself with this?

Boomboombambam 05-24-2012 02:38 AM

What should I put for fuel consumption

Boomboombambam 05-24-2012 02:40 AM

with .50 fuel consumption, it says im good for about 300bhp, is that possible? how come people were saying they were 100% duty cycle at only 7.5psi on the 15g when im running 10psi on my t25..

blaen99 05-24-2012 02:58 AM

You may actually want to read the information that is prominently placed nearly at the top of the page for answers about BSFC.

Secondly, the 15g is different from the t25G and it's fuel consumption.

Boomboombambam 05-24-2012 03:18 AM

I dont see anything about fuel consumption, and yeah... im aware they are different turbos, i was just stating the names because i know you guys would flame on me and what my setup/turbo is, etc.

blaen99 05-24-2012 03:21 AM


Originally Posted by Boomboombambam (Post 881168)
I dont see anything about fuel consumption, and yeah... im aware they are different turbos, i was just stating the names because i know you guys would flame on me and what my setup/turbo is, etc.

From the first section of text posted from the website...


Selecting the Proper Injector Size

In order to select the correct size injector for your application, you might wish to use one of the following formulas.

In most cases a naturally aspirated engine will have a B.S.F.C of .50. This means that the engine will use .50 lbs. of fuel per hour for each horsepower it produces. Turbocharged engines will want to be at .60 lbs. per hour or higher.

Using these numbers as a guideline, you can select the approximate injector size in the following formula for a four cylinder, naturally aspirated engine at 200 bhp.

Most injectors will max out at 80% duty cycle and this is the accepted industry standard.

B.S.F.C is brake specific fuel consumption - How much fuel you are using per horsepower per hour
All your questions are answered from it. I cannot believe you have searched at this point, especially since that page answered all your questions in the first few sentences posted on it.

Boomboombambam 05-24-2012 03:35 AM

Okay, so the 300bhp is correct, but does that seem right?

blaen99 05-24-2012 03:36 AM

You should PM Hustler and ask his advice on this thread.

richyvrlimited 05-24-2012 07:28 AM


Originally Posted by Boomboombambam (Post 881170)
Okay, so the 300bhp is correct, but does that seem right?

No it's not correct.

300bhp requires 640cc injectors (BSFC of .65 and a max DC of 80%).

to get your current injectors to flow 640cc's worth of fuel you need a fuel pressure around 340psi - stock is 43.5psi, NOT going to happen...

I worked all this out from the RCEng site.

Search more, and actually read what you've searched!

18psi 05-24-2012 08:13 AM

Basically no matter what you do you wont go over 180 or so.
So start saving up for MS and injectors, and leave current setup alone before you melt a piston

Boomboombambam 05-24-2012 11:37 AM

Dam, i was hoping for some head room, im currently trying to find injectors as we speak, ill try to message him

18psi 05-24-2012 11:40 AM

With stock injectors on boosted car you are already using the "headroom".

305's will get you into the 200-220 range max.

Anything more you need proper management and proper injectors, unless you want to be stupid and run a hackjob setup with extra injectors and whatnot

Boomboombambam 05-24-2012 11:49 AM

are you kidding me hahahahahaha i can run what, 6? 8? injectors hahahahaha id want a set up of 8 tan tops lmao you just blew my mind man

18psi 05-24-2012 11:56 AM

You've never seen the FFS kits have you?

hustler 05-24-2012 12:00 PM


Originally Posted by blaen99 (Post 881163)
You may actually want to read the information that is prominently placed nearly at the top of the page for answers about BSFC.

Secondly, the 15g is different from the t25G and it's fuel consumption.

lol at Blaen posting like a Republican in hurr.

Boomboombambam 05-24-2012 12:04 PM

ill look up the ffs kit right now!

its an expensive supercharger lol what about it though

18psi 05-24-2012 01:02 PM

:facepalm: nevermind. not wasting time on this

Boomboombambam 05-24-2012 03:01 PM

so dont bring it up?

18psi 05-24-2012 03:56 PM

STFU and GTFO stupid noob.
Next time research a topic before starting a stupid thread about it.

MicaCeli 05-24-2012 04:34 PM

1 Attachment(s)
Get 3 big bottles of this:

https://www.miataturbo.net/attachmen...ine=1337891699

Den turn boost up to 15.75634807psi. Don't go over that or it will go lean.

bmxfuel007 05-24-2012 05:11 PM

yes, boomboombambam, all of the info you've stated is correct. Don't listen to these fools.

RyanRaduechel 05-24-2012 05:57 PM

Use 16 blue top injectors and NOZZZZZZ! (that's NOS for normies like yourself)

Boomboombambam 05-24-2012 07:45 PM

Lmao, i did god dam. like 3 different threads said 7.5psi with a 15g though, but i dont see how im running 10, that was the question, and yeah i did research, your just being ignorant. its fine if you dont want to share info, idgaf, but dont bring something up if you wont explain it lol thats just rude. and again, I DID SEARCH.

Boomboombambam 05-24-2012 07:48 PM

Im really not a bad guy, i dont mean to be rude or anything of the sort, but man, some people suck at their real life, so they try to moderate the crap out of a forum, grow up

flounder 05-24-2012 08:35 PM

1 Attachment(s)

Originally Posted by Boomboombambam (Post 881557)
Im really not a bad guy, i dont mean to be rude or anything of the sort, but man, some people suck at their real life, so they try to moderate the crap out of a forum, grow up

Pay to play boomboom. Now https://www.miataturbo.net/attachmen...ine=1337906151

samnavy 05-24-2012 09:12 PM

Bambam... the variable that I haven't seen mentioned in this thread yet and that is critical to how much power you can make is FUEL PRESSURE. You are not running an ECU, so really the only thing you can control is RATE OF RISE and FUEL PRESSURE.

I ran well over 130psi at the injector for a long time before I got myself a fuel pressure gauge and actually went to a dyno. With my SR20det T25, tan-tops, Walbro 190lphHP, 02clamp, and Bipes... I ran 90-100psi fuel pressure at 14psi boost for the flattest AFR curve I could manage. It was far from flat, but it was as good as bandaids get. That was good for 210whp. I stepped up to 310's and it made zero more power, but I could run slightly lower fuel pressure.

YOU MUST GET A FUEL PRESSURE GAUGE. YOU MUST GET A WIDEBAND. Now you can tune on the street.

When you AFR's are as flat as you can make them on the street, get to a dyno.

Oh yeah... the Greddy fuel pressure device is archaic as far as AFPR's go. Get a used Begi 2025 from the classifieds (or buy one new), and get serious about your tune. With the Begi, you can dial in base-pressure and have an adjustable rate-of-rise on-the-fly. You don't need to swap in discs, so you can do a pull, check your shiz, and use a screwdriver to dial in more or less fuel pressure, then do another pull and check. It's really the only way to go if you're stuck with bandaids.

Boomboombambam 05-24-2012 09:25 PM

Thank you so much samnavy, you honestly just answered my question cheers!

Boomboombambam 05-24-2012 09:32 PM


Originally Posted by flounder (Post 881570)

LOL you think i got my stuff for free, or? its cool if you take it ---- for your parts, but i perfer cash lol i have the gf for pleasure needs :giggle:

blaen99 05-24-2012 10:49 PM


Originally Posted by samnavy (Post 881577)
Bambam... the variable that I haven't seen mentioned in this thread yet and that is critical to how much power you can make is FUEL PRESSURE. You are not running an ECU, so really the only thing you can control is RATE OF RISE and FUEL PRESSURE.

I ran well over 130psi at the injector for a long time before I got myself a fuel pressure gauge and actually went to a dyno. With my SR20det T25, tan-tops, Walbro 190lphHP, 02clamp, and Bipes... I ran 90-100psi fuel pressure at 14psi boost for the flattest AFR curve I could manage. It was far from flat, but it was as good as bandaids get. That was good for 210whp. I stepped up to 310's and it made zero more power, but I could run slightly lower fuel pressure.

YOU MUST GET A FUEL PRESSURE GAUGE. YOU MUST GET A WIDEBAND. Now you can tune on the street.

When you AFR's are as flat as you can make them on the street, get to a dyno.

Oh yeah... the Greddy fuel pressure device is archaic as far as AFPR's go. Get a used Begi 2025 from the classifieds (or buy one new), and get serious about your tune. With the Begi, you can dial in base-pressure and have an adjustable rate-of-rise on-the-fly. You don't need to swap in discs, so you can do a pull, check your shiz, and use a screwdriver to dial in more or less fuel pressure, then do another pull and check. It's really the only way to go if you're stuck with bandaids.

Or just get a megasquirt instead. A MS1 is only a little more than a 2025, and much less than you'll have invested in your kit of bandAIDS.

As a bonus, you'll be able to control any size of injector you can imagine, and don't need to fark around with the bandAIDS.

flounder 05-25-2012 07:23 PM


Originally Posted by Boomboombambam (Post 881586)
LOL you think i got my stuff for free, or? its cool if you take it ---- for your parts, but i perfer cash lol i have the gf for pleasure needs :giggle:

Pay, as in getting gangbanged by the locals for stupid questions, and play, as in taking the abuse and finally getting a correct answer.

It's the MT.net way. Now go get your facking shinebox! :noob:

Bond 05-25-2012 09:59 PM

Buy my ms and huge injectors then ---- on all the haterz in this thread

Boomboombambam 05-26-2012 05:51 PM

Na, they hate because literally, they have nothing better to do lol makes them feel superior? which is weird. Because this is the internet. I dont think theyd hate NEARLY as much if it was in person. LOL

18psi 05-26-2012 05:53 PM


Originally Posted by Boomboombambam (Post 882195)
Na, they hate because literally, they have nothing better to do lol makes them feel superior? which is weird. Because this is the internet. I dont think theyd hate NEARLY as much if it was in person. LOL

I'm in Sacramento.

Wanna bet?

Lets do this.

18psi 05-26-2012 05:53 PM

Also, if you want to run your car vs any of mine, or my friends, let me know. We could meet up tonight.

bmxfuel007 05-26-2012 05:55 PM

video of said meet plz

Boomboombambam 05-26-2012 09:07 PM

LOL I would but watching the fights on ppv, come on cain!!!!!!!!!!!!

blaen99 05-26-2012 09:09 PM


Originally Posted by Boomboombambam (Post 882195)
Na, they hate because literally, they have nothing better to do lol makes them feel superior? which is weird. Because this is the internet. I dont think theyd hate NEARLY as much if it was in person. LOL

No, we hate because even when we put something in giant big letters right in front of you, you still don't read it.

Boomboombambam 05-26-2012 09:09 PM


Originally Posted by 18psi (Post 882197)
I'm in Sacramento.

Wanna bet?

Lets do this.

Bet what?
That your gonna hate?
Keep it coo lol this is how people get shot.

Boomboombambam 05-26-2012 09:10 PM


Originally Posted by blaen99 (Post 882246)
No, we hate because even when we put something in giant big letters right in front of you, you still don't read it.

lol read what

blaen99 05-26-2012 09:37 PM

1 Attachment(s)
https://www.miataturbo.net/attachmen...ine=1338082657

Savington 05-26-2012 09:54 PM


Originally Posted by Boomboombambam (Post 882247)
Keep it coo lol this is how people get shot.

You literally have no idea how accurate this statement is on this forum :giggle:

[/chuckyz]

18psi 05-26-2012 10:02 PM


Originally Posted by Boomboombambam (Post 882247)
Bet what?
That your gonna hate?
Keep it coo lol this is how people get shot.

:laugh:


Did you seriously just say that?
Is that a threat?

You know your personal info is right here for everyone to see right?

Name: Jonathon
Location: West Sacramento
Telephone: 9165888263
http://images.craigslist.org/5Ne5Id5...81558c1896.jpg


Bet that I'd say the same exact words to your face that I'm saying in this thread, and you wouldn't do ---- about it.
See this isn't about getting into a pissing match. This is about every stupid noob like yourself always running their mouth on the net then saying "You wouldn't say that to my face".....Well guess what? I would. So either lets find out, or don't make the comment in the first place.

If I were you I'd just stop posting in this thread. Period. You have failed.


Good day

JermyZ 05-27-2012 03:52 PM


Originally Posted by 18psi (Post 882199)
Also, if you want to run your car vs any of mine, or my friends, let me know. We could meet up tonight.

:bowrofl: if you race this fag, please let me know, I wanna buttfuck him with my rice rocket!

wickedwhite 05-27-2012 05:07 PM

Let's Race Bro

18psi 05-27-2012 08:31 PM

Ohh you guythsss:giggle:

Bond 05-27-2012 09:36 PM

LOL @ people registering up just to take a shot at 18psi. Thuggin'''''''

18psi 05-27-2012 09:42 PM

You mean boomboombambam? Cause those are my buddies

JermyZ 05-27-2012 11:30 PM


Originally Posted by 18psi (Post 882490)
You mean boomboombambam? Cause those are my buddies

chyea brah! this

Boomboombambam 05-28-2012 12:36 AM

LOL you guys have nothing better to do or?...

Boomboombambam 05-28-2012 12:37 AM

Come to mcdonalds on watt and sunrise, ill be the guy with the white face, red lips, big boots and a yellow jumpsuit, lol

Boomboombambam 05-28-2012 12:38 AM

"every noob running their mouth" uh.. your running your mouth, your friend is running his mouth, and your friends friend is running his mouth LOL

18psi 05-28-2012 02:13 AM

Cool story Ronald McDonald. So your car looks like you? Makes sense now

JermyZ 05-28-2012 03:54 AM


Originally Posted by Boomboombambam (Post 882518)
LOL you guys have nothing better to do or?...

We have better things to do, but who passes up such a golden opportunity to make a dumbass look even worse? As stated, if you're gonna run Vlad I'd gladdy join in, I enjoying pissing on denios/autozone built cars like yours Boom :)

Boomboombambam 05-28-2012 03:56 AM

not one thing off my car is from denios or autozone. Only dumbass here is the guy who made a name just to talk ---- at 1am LOL

Boomboombambam 05-28-2012 03:58 AM

But seriously, you guys should keep it coming, its quite entertaining. Im using all these come backs of yours on the honda forum.

Boomboombambam 05-28-2012 03:58 AM

And sorry that you paid 3000 for your kit then i did

18psi 05-28-2012 04:26 AM

That looks like diarhea
http://images.craigslist.org/5N25Ke5...905eb01652.jpg

The worst builds on here have nothing on your POS.
And since you look like ronald mcdonald it all makes sense: white car, red bay, blue coupler. Put some lipstick on the valve cover and you're set.

I wonder though: do you want to actually meet? or are you going to keep running your mouth on the interwebz? lol bitch

JermyZ 05-28-2012 04:29 AM


Originally Posted by Boomboombambam (Post 882552)
not one thing off my car is from denios or autozone. Only dumbass here is the guy who made a name just to talk ---- at 1am LOL

I actually made the account much earlier, some time this afternoon. I knew you were slow, didn't know you were flat out retarded.




Originally Posted by Boomboombambam (Post 882553)
But seriously, you guys should keep it coming, its quite entertaining. Im using all these come backs of yours on the honda forum.

holy crap that explains it all! please.... go back there and stay there.

JermyZ 05-28-2012 04:30 AM


Originally Posted by 18psi (Post 882556)
That looks like diarhea
http://images.craigslist.org/5N25Ke5...905eb01652.jpg

The worst builds on here have nothing on your POS.
And since you look like ronald mcdonald it all makes sense: white car, red bay, blue coupler. Put some lipstick on the valve cover and you're set.

I wonder though: do you want to actually meet? or are you going to keep running your mouth on the interwebz? lol bitch

Lol, but... he says its not built from denios/autozone parts. That means its quality ---- right? :rofl: ebay is just as bad, but apparently thats where he overnights his parts from japan


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