This weekend i removed every thing the motor dont need to run.
I re-did all the vacuum.
And run it streight pipe for test. (dont talk to me about overboost, i know, but its not the question today).
It idle pretty good, rev good, decel with some pop pop pop(i think its normal cause the ACV is not here anymore).

But on my boost gauge i got -20(wich i think is normal) at idle.
When i press the gaz (in neutral), the gauge dont go back to 0 like my friend piston car does.

Is it normal ?

 

Well consider what you just said.


"When i press the gaz (in neutral), the gauge dont go back to 0 like my friend piston car does."

His car is piston powered and yours is rotary power. Thats pretty much why you dont get the same results as him. I dont have a Turbo yet so I cant help you, but I just wanted to let you know that im pretty sure the results wont be the same.....but hey I could be wrong...

 

in neutral (if i remember correctly) the boost is not present.... no matter how hard u step on the gas... it won't go up....
i'll check later for u though

 

it dont BOOST (dont go in positive)
but it stay at like -10
dont go to 0.

Anyway just told me what ur rotary car do

 

Was that English?

 

Your boost gauge SHOULD go up when you press on the gas in neutral, how much is hard to say. Going to zero is not necessarily a must.

When I rev mine, no spider but with ACV and cat, it does go up but not all the way to zero.

 

Look where he is from ***. English is a second language (most likely), do YOU speak French?

 

French is my first language.
But at least i try to speak english, can you speak fresh as good as i speak english? Probably not.

btw, the world is not called USA, everywhere in the world, we speak our own language, and use metric system. Why? Cause its better.



Tnx guy for the help about my problem. It help me a lot!
And im happy to know that with all the efford i do to be understood, some people try to read me, and answer my question.
and after all, we all share the same passion; rotary powered cars.

 

metric is cool! ^_^
well every bolt on our cars are metric =P RESPECT the metric.....

anyways, yeah rat is right though (come to think of it) the boost gauge do go up a little, but mine doesn't go to zero either....

 

Metric is cool. I hate fractions, give me an 8, 10, and 12mm and I will completely rebuild any motocross bike...well, I may need a 14mm and a big hammer but whatever.

I only speak english unfortunately, I admire anyone who tries to speak, and write, MORE than their native language.

 

I respect him too cause I'm in the same situation. But I don't think a lot of people in the US know that QC means Québec. And Québec is a french canadian province.

 

Rat39 and Hugo 20. Surprised that you did not post this in the Canadian Forum. We would be more then happy to help you there and J' vais assez vu parle avec vous. I spent 4 months in France and appreciate when people try to understand my French. Northern France got a boatload of my effort and we all had a lot of laughs at the gaffs I made (tried to order Lobster *** instead of Lobster Tail one night....pretty funny. I will always remember "coure d'homarde" and not "derrier d'homarde").
Boost should stay in the -10 to 0 range when in neutral and reving.

 

it depends how much you press the accelerator. It also depends on the boost guage..some guages just jump from like -4 or -5 to + pressure... you should see where the guage rests when you turn off the car.. it should go to that ammount when you press the gas a decent ammount.

 

I just tested a few minutes ago

my gauge from idle reads at -50,

when i am at neutral and press on the gas, the gauge reads at -30

my Greddy gauge, reads 500 mmHG at idle, when rev it reads at ~300 mmHG

sometimes it jumps up to ~200 mmHG then it goes back down to ~300 mmHG if i keep the gas at 2000-3000 RPM

hope that helps....

 

This is not a Frog forum. It's an English forum.

 

Ok mabey we need to clarify the scale of the boost gauge. -20 psi is ok I think cause mine is about -16 at idle. When I get on it while driving it will go up to + 8. If I rev the throttle while its sitting its not suposed to make boost due to the ECU opening the waste gate. It does move toward the positive but its not supposed to make boost.

 

Dont be an racist *******



you guys's turbos must suck

i get 2 lbs of boost if i rev to 7k in neutral.

hehehe

i havent removed my vacuum rack tho, or other ****. just the cats and airpump. Wide open exhaust thats it

 

What a great comment!!

Really ? It's an english forum ????

That's why we try to speak english crétin.

 

I can't say that I agree with reving to 7K while idling, but you're not suppose to get much over 0 I think, since there's no load (neutral). It does move up close to 0 on mine when I step on it, and rev it a little.

No comment on the country or language, but I thought this is a forum for 2nd gen RX7s, and not limited to certain languages only?

 

What does this mean...seriously, I do not get it.

Edit: Nevermind, my wife told me. Don't be an ***, just help him.

 

Good luck with your car rat, from a non discriminating person.




yah, i get 2 lbs, and my BOV goes nuts muhahahahahaa

 

Nice racial slur. I have to admit you always struck me as intelligent and I assumed you were not some igornorant *****. Guess I was wrong.

 

How does the ecu open the wastegate???? Ok heres how it works. whenever the car is under vacuum the wastegate is shut, when it goes into boost it opens little by little until it gets to the set pressure. Now when its on idle there is no load which is why its almost always in vacuum, unless its outragousely ported in which case there is almost no vacuum(at idle). so no the ecu cannot keep the wastegate open it can only keep it closed(s5).

 

Wow some of you guys are such ******* ********...

Keep up the informative posts though. You know, the ones that are actually helpful when troubleshooting these cars.

 

well I have an 88 TII when I stab the gas the the gauge goes to 0 on my Apexi gauge. If you rap it out you should get it to boost a little in nutral. Not much but enough that the BOV will open.