I have just done the cheap conversion to non sequential just to solve a tranision problem but im not impressed with it at all. The turbos dont really kick in till about 5500-6000rpm.
Has anyone gone down this route and what are their thoughts on it?
I have been reading martiny post about his problems and have followed his route to non-sequential.
Does anyone know what could cause a transition problem from 1st to 2nd turbo. It all boosts fine and then the second turbo kicks in at around 6000rpm. It has only boosted at 4500rpm one time and that is the only reason i knew i had a problem. I thought something was wrong as the idle was really low.
Any ides guys? I have done all the rubber lines checked all the acuators but havent done the soloniods yet. Could that be causing the problem?
Cheers
Jamie
Ok, for us to help you, here\'s what you need to do.
tell us what your boost pattern is. It should be 10-8-10 Psi.
That means from 2K up to about 4.5 10PSi. At 4.5k a dip down to 8 Psi then back up to 10 PSi, falling of slightly towards 7 K.
Do you have any mods on the car? what year is your car?
Hey the man him self.
Right the pattern goes like this 0.8bar down to 0.6 then up up 0.8 again. . Right everything is fine but it doesnt dip till about 5000-5500 rpm then about 6000rpm goes up to 0.8 again but dosnt fall off.
Im not sure if it holds 0.8 bar from 2000rpm up to 4500rpm i think it comes in more like 3500rpm up till 5500rpm
The car is an 1992 type R it has an blitz cat back system still runing the cat, an knightsports ecu running 0.8bar of boost stock airbox and downpipe and now i have fitted a proflec b boost controller only because the wastegate soloniod was nakered.
so pretty stock mate.
as i said before it has only worked as it is meant to once and only for about 5mins and then went back to the way it is now but when it was working properly the idle went really low.
Cheers
Jamie madden
Ok I dont know much about the knightsprots, but cant that be adjusted to give you the cutover point for the secondary? I am too lazy to convert Bar to psi, but isnt 0.8 about 10 PSi?
0.8 bar is about 12 psi. I dont think the knightsports ecu can be adjusted to control the transition as there is no point in adjusting it to come in at 6000rpm as you peak power will only last for about 2000rpm. The things is im not sure it is an knightsports ecu all it has is a sticker saying ks rom. But there is no rev limiter or speed limter on the car at all.
And also it has come in at 4500rpm once and not again?
Cheers
Jamie
mm 4.5k is when it should come on. THere are a few valves and solenoids that get triggered at that rpm.
Maybe we are talking cross purposes here! Whats your boost pattern when running sequentially, and ahwts your boost patter when running non-sequentially.
What are you doing to make it non-seq?
You sure that the rev counter isn\'t the problem here? It is a relatively common problem that the rev counter can start playing. Mine is at the moment, so i can\'t fully trust the readings i am getting. I had change over to both turbos at indicated 6000rpm the other day! :eek:
When runing sequential the boost pattern is 0.8 0.6 0.8 but the dip doesnt happen till 5000 5500rpm and then doesnt come up till 6000 rpm
When running non sequential it has very little boost till about 5000rpm and then goes up to 0.7 and holds there
martiny i have done exactly what you have done to go non sequential but i have aslo tied back the precontrol lever as you didnt as your proplem was after the transistion.
nikp i was thinking that my rev counter has nackerd as well how can you tell ?
Quotei was thinking that my rev counter has nackerd as well how can you tell ?
dunno really! I am hugely confident that mine is screwed! I can feel the second turbo kick in at about 6 or 7k. (As you know, should be about 5k). I can also rev mine till it goes past the 9000 sign, and that\'s when the buzzer goes off. So i know mine is screwed cos the buzzer telling me to change gear goes off after 9k revs, whereas it should be in the region of 7.5k If you have a power FC, i guess it should display on there.
so theres a buzzer that goes off 7.5 mine goes past 9000rpm as well but i thought that was something to do with the eccu i have in the car im changine back to sequential as we speak and then i will go and test it out somewhere. What cause the rev counters to go wrong?
your right the buzzer goes off at 9000rpm so does that mean my rev counter is nakered?
er....probably! Maybe someone with a working rev counter can confirm this or not! Mine hasn\'t performed properly for ages now, so i can\'t remember! But I am 99% sure that the buzzedr is meant to go off just before red line (7.5k) to remind the driver to change gear. Therefore if it is going off at 9k, it\'s probably an over-reading rev counter! Common fault I believe.
but don\'t go buying an rev counters just yet.....I wanna sort mine first! :p
already got one lined up mate. I have started a new theard about the buzzer and when it is meant to go off so will let you know. I have read an old theard that you have done and a guy said that you can fiddle with it a bit . Have you tryed that yet mate?
just had a reply.
Yep your right the buzzer is meant to come in at 7000rpm on the jap imports.
I have spent about 2 months working on my turbos because i thought there was something wrong with them and now there was nothing wrong with them in the first place .
cheers all your help guys let me know how you get on with your rev counter nikp and martiny good luck with your second turbo problem
Jamie
QuoteI have spent about 2 months working on my turbos because i thought there was something wrong with them and now there was nothing wrong with them in the first place.
Haha! Not laughing at you, trying to laugh with you! Sometimes, very occassionally, your expensive car related issues turn out to be something really really simple! Now you know that there\'s nothing wrong with your FD!!
This may help too, just to confirm things. The revs at certain speed, in certain gears! If it\'s not reading whats in this table, then its definately screwed! (Mine isn\'t, so that\'s how i knew!) - Sorry for the badly formed copy and paste - I can do HTML, but i can\'t be bothered right now!!
1st gear 2nd gear 3rd gear 4th gear 5 speeds R
500 4 7 11 15 18 4
1000 8 14 21 29 36 9
1500 13 22 32 44 54 13
2000 17 29 42 58 72 18
2500 21 36 53 73 91 22
3000 25 53 63 88 109 27
3500 29 51 74 102 127 31
4000 34 58 84 117 145 36
4500 38 65 95 131 163 40
5000 42 72 105 146 181 44
5500 46 80 116 161 199 49
6000 50 87 126 175 217 53
6500 55 94 137 190 236 58
7000 59 101 147 205 254 62
7500 63 109 158 219 272 67
8000 67 116 168 234 290 71
8500 71 123 179 248 308 76
9000 75 130 189 263 326 80
9500 80 138 200 278 344 85
10000 84 145 210 292 362 89
First column is 1st is revs, 2nd column is 1st gear, 3rd column 2nd gear, etc, etc.
So, in 1st gear, at 7000rpm, you should be doing 63mph. In 3rd gear, at 4000rpm, you should be doing 84mph. And so on, and so on.
LOL! Nik I have a strange feeling that table is KM/H. Still , imagine 362 !!!! Adn just look at reverse! 84 ! Imagine trying to drive backwards that fast!!!
Oh and I think you meant 7500 rpm in 1st is 63Mph.
er....yeah!
Wasn\'t paying much attention last night. Oops!
You mean yours doesn\'t do 84 in reverse? I think there is something wrong then!! ;)
There is now went out last night took it to the buzzer and water started ****ing out everywhere. Cloud of smoke behing me lifted the bonnet and water everywhere.
good fun the joys of owning an fd
good thing its leaking outside the engine !! Probably the plastic AST tank on the left of the engine, just in front of power steering pump.
found the problem the little hose under the charge pipe went bang £1 fix good stuff. i will try and get on with the problems now. martiny any luck with your problem mate?
Good stuff! So, apart from the rev counter, she\'s working A ok now?
nik cheers for the table copying it down now to go and test it.
Remeber, kph, not mph! :rolleyes:
yea she is runnig really nice now. it feels good when you take it all the way up the rev range. Now i can get on with the rear bushes.
Nik where did you get that table from?
erm...not sure. Somewhere on this forum actually. I think it may have been kieron that posted it up.
Quote from: Maddenfound the problem the little hose under the charge pipe went bang £1 fix good stuff. i will try and get on with the problems now. martiny any luck with your problem mate?
No Ive put it all back to sequential, so I am back to 10-8-8. Now I am fitting a gate to the house, and a few other diy jobs, then I go to Canada for 2 weeks, so, not much progress soon Im afraid.
im still in kph anyway as i have problems with the speedo convertor that i got of ebay. where did you buy yours from?
aha! I\'m lucky....ish! My speedo went tits up too, so i had to replace it. Went to RX motors and they sold me an english one! So it\'s automatically in MPH :D Woohoo!
The ebay one is a load of old garbase is it?
Hello all again.
i tested that table and its well off 20kph differance in some cases. How much did you pay for the english speedo?
Yea the ebay ones seem to be a pile of ****. The vendor is a nice guy tried helping but no luck. He sent a replacement but that was the same and then he sent me a filter to block the interfearance i was getting and it made it worse. The speedo was all over the place and going up even if i was standing still. Turn the air con on and the speedo would stop working . Trying to get my money back but he wont reply to me.
Martiny Well i sure you will enjoy Canada more then working on you fd.
Any of you going to santapod on sunday?
the speedo cost me £25! Very pleased with that. However, there are other places around that sell the convertors rather than that stealer dealer on ebay. Go on, give \'im some bad feedback!
Oh, and I\'m hopefully going to pod on sunday, as long as i can remove this bolt by saturday!!
What bolt that mate?
See here: http://www.mazdarotaryclub.com/forums/showthread.php?t=18802