boost stock motor
 

hey im planning on boosting my 1.8 stock motor. i dont want to do anything crazy just dd at 9lbs. will i be ok boosting the stock motor? i want to know what u guys think.

It will explode in a big fireball and you will be liable for 15million worth of damages. Also your greatgrandmas body will be dug up and sodemized.

Learn to search and make a god damn intro thread.

:giggle:

i love this thread already, it is most certainly relevant to my interests.

yeah 9 you should be fine. 12 is probably a safe number..but it really depends on the rest of your setup. 250whp is kind of the same reliable established limit, assuming you have a good tune of course.

Yes, you can boost a stock Miata engine. using the "SEARCH" is real helpful.

9psi will definitely blow it. And I'm assuming you're running a massive turbo from ebay, no engine management, and you have vtec stickers on your car.

Right On ! V-TEC Sticker alone is good for 50whp.........

We aren't that familiar with B18 motors here. But in my professional opinion I'd say you would be fine with 9 psi. Please, no more than 10 psi on the stock longblock. And make sure to get a respectable FMU so you can tune your B18. Okay! ;). Try http://www.honda-tech.com/ for more information.

lol...

Don't boost your engine. It will blow.
Boost your transmission. Those can handle up to 80psi

lmao!!!! u guys are too funny!! yes i just came out of the honda game. and i bought a miata so i need some help.. i did some reasearch and i found a stock 1.6 running full boost at 8lb for 8 hours and it was good. i just want to know what everybody else thinks.

giggle giggle. you guys.... heh heheheheheh. lulz.

my car looks exactly like yours. just witout the wheels. help me out

I've run at least 10psi for 10hrs...just ate lunch and it's still going fine.

my car looks exactly like your. just witout the wheels

my penis looks normal without herpes.

so your car was on a dyno for 10hrs??

damn sucks for you goodluck wit that

Read this

https://www.miataturbo.net/diy-turbo-discussion-14/diy-faq-all-your-answers-one-big-post-4288/

Don't post again till you read all of it

Also look at getting something like this
http://www.amazon.com/Street-Turboch.../dp/1557884889

Its good to be back

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Mmmm, ass spaghetti !!!



OP - I've never heard this question before. -Sisyphus

That pic should be hondacivicsi's new avatar.

Not to be a bitch or anything, but nsfw tag before you post a photo like that PLEASE.

Thanks for the NSFW tag jackass

Damn it people fine!

There's people that have blown their engines at 0psi then there's people like leatherface running 21psi just fine, I run 17psi and there's plenty of more people too.

I've learn no to click on any of Leatherface's links if I anywhere but home.

you just learned that?

The confusion with his learning capabilities is where?:giggle:

Since I have a similar question, how many miles were on the engine before you started running 17psi, and how many have you put on since?

I am guessing what you are asking essentially is if high milage motors are more dangerous to add force induction to, and if they survive long in that condition.

The problem is we need to specify what it means to "blow." If you mean fail by any method - then yes. It is possible that by adding extra load to an engine you can cause it to fail sooner than it would have from normal load conditions.

If you mean fail catastrophically - like as in send a rod through the side of the block - then not usually. I have seen a stock motor fail on break-in at 0psi because someone failed to torque a bottom end bearing cap. I have also seen the same thing happen due to a bad tune.

Basically in both situations, unless something is ready to fail on its own or your tune is messed up, you are pretty safe.

The more you are asking your engine to do, the stronger/fresher it needs to be.

Basically thats it for me, as i'm still in the decision making process as to what miata I buy, and with what engine in what shape. Luckily I telecommute, so no need for a daily driver. So I doubt i'd put more than 2-3k miles on per year, and really i'm probably only looking at trying to reach the 180hp or so mark (as i'm looking for 5-6 second 0-60 times). So seems like a 6-8psi boost should easily hit that, and from the sounds of it not hugely reduce engine lifespan.

I turbocharged the Miata when it was my DD for a 200mi/day commute. 10-12psi, 180-200whp, and ragged on it for over a year.

It's all in the tune.

Also a quick comment- the engine is only seeing higher stress when you are in the boost. A majority of the time your engine is just purring along like stock.