any MODDED FD's stayin sequential
If you have a stock cat leave it alone. If you have a midpipe and front pipe and BOOSTING UP (ie "Modded") not going non sequnetial is bad for you turbines. If you have a intake and muffler or less STAY sequential. If you are "Modded" Staying sequential is ignorant. Lag is a result of letting the clutch out too soon or shifting before 5K. 
j/k
j/k
Last edited by laujesse; Sep 16, 2002 at 11:01 AM.
Yeah .. and we started the same time ... I'd like to say for the record ... I joined May 31 at exactly 11:59 pm ... it just took a minute for it to finish the transaction ... 
So i've had the full month of June. ... Yeah, that's sounds good.
So i've had the full month of June. ... Yeah, that's sounds good.
1JZ powered
Joined: Jul 2001
Posts: 4,423
Likes: 0
From: Where there's only two seasons, hot and wet! I love Okinawa
Originally posted by Dont_Be_A_Rikki
Did I forget to say that I was staying NON-SEQ
.
-Rikkity Split
Did I forget to say that I was staying NON-SEQ
.-Rikkity Split
next step is UP, NOT DOWN
Rotary Freak
Joined: Jan 2002
Posts: 1,643
Likes: 0
From: l.a.
Originally posted by yzf-r1
I've been running sequential for almost two years with a full exhaust (midpipe), M2 med IC, and Pettit computer
like rikki says, the spikes can be dangerous, that's why you have to dial them out, I have the dawe's devices boost controller on the wastegate acutator line and a home depot needle valve (dialed WAY down) on the pre-control line
with that set-up, I get absolutely no spike, just a strong kick to 11-12 psi, quickly building to 13-14 psi.....I like the sequential, at least on the street.....it REALLY helps in 5th gear highway roll-ons and street driveability....Mazda didn't just have their head up their ***, although the rat's nest makes you wonder sometimes (the Supra is dead simple by comparison)....
now, if my stock motor ever lets go at some point in the future and I want to try to squeeze every last drop of hp out of a new ported engine with big injectors, then non seq (or of course single) makes alot of sense
for now, I just enjoy the car and try to limit blowing huge wads of cash on it.....any money spent on a 3rd gen RX-7 is a ZERO OR NEGATIVE RETURN INVESTMENT, in case you haven't figured that out yet
I can't believe how many people spend $15k in parts on these cars and then turn around and sell the car for $15k....amazing.....do these people deal crack or what?
I've been running sequential for almost two years with a full exhaust (midpipe), M2 med IC, and Pettit computer
like rikki says, the spikes can be dangerous, that's why you have to dial them out, I have the dawe's devices boost controller on the wastegate acutator line and a home depot needle valve (dialed WAY down) on the pre-control line
with that set-up, I get absolutely no spike, just a strong kick to 11-12 psi, quickly building to 13-14 psi.....I like the sequential, at least on the street.....it REALLY helps in 5th gear highway roll-ons and street driveability....Mazda didn't just have their head up their ***, although the rat's nest makes you wonder sometimes (the Supra is dead simple by comparison)....
now, if my stock motor ever lets go at some point in the future and I want to try to squeeze every last drop of hp out of a new ported engine with big injectors, then non seq (or of course single) makes alot of sense
for now, I just enjoy the car and try to limit blowing huge wads of cash on it.....any money spent on a 3rd gen RX-7 is a ZERO OR NEGATIVE RETURN INVESTMENT, in case you haven't figured that out yet
I can't believe how many people spend $15k in parts on these cars and then turn around and sell the car for $15k....amazing.....do these people deal crack or what?
the dawes http://www.dawesdevices.com/boost.html is basically a tiny spring controlled pressure relief valve, it only releases pressure a pre-set point....the home depot valve just bleeds pressure into the line "blindly"
the dawes provides very good boost control using the pressure signal system of the stock car....best of all, it's really cheap
footnote: I fail to see why sequential is "hard on the turbos", if you eliminate the spike
the dawes provides very good boost control using the pressure signal system of the stock car....best of all, it's really cheap
footnote: I fail to see why sequential is "hard on the turbos", if you eliminate the spike
Rotary Freak
Joined: Mar 2001
Posts: 2,236
Likes: 1
From: San Francisco, CA
Originally posted by kwikrx7
I've been non-sequential for over a year now. non-sequential is nice for highway blasts and midrange downshifts but it's nothing that can't be accomplished with sequential. Overall sequential is much better than NS in most situations on the street. Your turbos can last longer running high boost if you're NS but I'm going back because I miss having full boost by 2500 rpms. With NS you ALWAYS have to downshift into the power range or your driving an Accord. If you have problems then convert - if not stay with the better setup.
I've been non-sequential for over a year now. non-sequential is nice for highway blasts and midrange downshifts but it's nothing that can't be accomplished with sequential. Overall sequential is much better than NS in most situations on the street. Your turbos can last longer running high boost if you're NS but I'm going back because I miss having full boost by 2500 rpms. With NS you ALWAYS have to downshift into the power range or your driving an Accord. If you have problems then convert - if not stay with the better setup.
I just hate to think about having to trouble shoot my system...
1JZ powered
Joined: Jul 2001
Posts: 4,423
Likes: 0
From: Where there's only two seasons, hot and wet! I love Okinawa
Originally posted by jpandes
I miss getting full boost by 3000 rpm.
I miss getting full boost by 3000 rpm.
Rotary Freak
Joined: Jan 2002
Posts: 1,643
Likes: 0
From: l.a.
Originally posted by yzf-r1
the dawes http://www.dawesdevices.com/boost.html is basically a tiny spring controlled pressure relief valve, it only releases pressure a pre-set point....the home depot valve just bleeds pressure into the line "blindly"
the dawes provides very good boost control using the pressure signal system of the stock car....best of all, it's really cheap
footnote: I fail to see why sequential is "hard on the turbos", if you eliminate the spike
the dawes http://www.dawesdevices.com/boost.html is basically a tiny spring controlled pressure relief valve, it only releases pressure a pre-set point....the home depot valve just bleeds pressure into the line "blindly"
the dawes provides very good boost control using the pressure signal system of the stock car....best of all, it's really cheap
footnote: I fail to see why sequential is "hard on the turbos", if you eliminate the spike
does it really allow the turbos to spool faster, like the site says? can you notice them spooling faster?
Hey, where did my $$$ go?
Joined: Feb 2001
Posts: 4,413
Likes: 0
From: Bimingham, AL
I have always been a strong supporter or the seq system with manual boost comtrolers on the wg and prespool lines. I ran like that with full exhaust and intake for a couple years and never had any spike or creep probs. You just mess with it a little and you can get it just like you want.
I was getting 11psi at around 2500 rpms in seq.
Later when I upgraded everthing else under the sun and turned the boost up to 14-15psi I did the seq system simplification which isnt hard to do and made great sense. It removes all that nest of hard lines and about 88% of the vac lines. I also never had a vac line pop off with the simplification done.
One major benifit of the seq system is when street racing you dont have to tach it up to 5K to get a decent launch like you do with non seq.
I'm getting hybrid twins that I should prob use in nonseq but I really dont want to. I think I'm going to try staying seq with them and see how it goes.
STEPHEN
I was getting 11psi at around 2500 rpms in seq.
Later when I upgraded everthing else under the sun and turned the boost up to 14-15psi I did the seq system simplification which isnt hard to do and made great sense. It removes all that nest of hard lines and about 88% of the vac lines. I also never had a vac line pop off with the simplification done.
One major benifit of the seq system is when street racing you dont have to tach it up to 5K to get a decent launch like you do with non seq.
I'm getting hybrid twins that I should prob use in nonseq but I really dont want to. I think I'm going to try staying seq with them and see how it goes.
STEPHEN
Last edited by SPOautos; Sep 16, 2002 at 02:17 PM.
i dont undestand why so many peope have problems with the stock seq system. if u are willing to play a littel with it u can get the boost u want wihout spiking, with all the mods...all that spikign is the wastegate not opening early and fast enouf. why woudl it the stock seq system was setup for the stock parts on teh car and at 10 psi
does it really allow the turbos to spool faster, like the site says? can you notice them spooling faster?
I don't think it really spools faster, it just hits hard and RIGHT NOW, plus there is no spike at all....it makes the car alot of fun to drive, people think you're going pretty fast and then the second turbo hits and it's like, see ya
now all I need is another 100 hp, ha....but then again more is never enough
I don't think it really spools faster, it just hits hard and RIGHT NOW, plus there is no spike at all....it makes the car alot of fun to drive, people think you're going pretty fast and then the second turbo hits and it's like, see ya
now all I need is another 100 hp, ha....but then again more is never enough
Rotary Enthusiast
Joined: Feb 2001
Posts: 985
Likes: 0
From: Montreal, PQ
Originally posted by Dont_Be_A_Rikki
Well SEQ is awsome but once you get a MP that is when **** goes down hill for the system and the spike becomes to risky and you will blow the motor or the secondary turbine. It will happened so dont fool yourselfs guys. Anyhow with just a little bit of modding SEQ rocks but once you get to a high level of performance the SEQ system is worthless and very dangerous IMO. All the high end STOCK TURBO guys are all NON-SEQ.
-Rikkity Split
Well SEQ is awsome but once you get a MP that is when **** goes down hill for the system and the spike becomes to risky and you will blow the motor or the secondary turbine. It will happened so dont fool yourselfs guys. Anyhow with just a little bit of modding SEQ rocks but once you get to a high level of performance the SEQ system is worthless and very dangerous IMO. All the high end STOCK TURBO guys are all NON-SEQ.
-Rikkity Split
Meesto Spakaro
Joined: May 2001
Posts: 489
Likes: 0
From: Redondo Beach, CA
oh how I love the sequential system
Note the snapped Turbo Control (pressure) solenoid and EGR solenoid. Had to drill out of the nipple so i could put a metal one in there. What a PITA.
TC solenoid seems to be the main cause for secondary boost problems as it is a different type of solenoid from the others. If I remember correctly it cycles on and off a lot more than the other solenoids so it is more prone to breaking. Anyone know where to find that solenoid for cheap?
I was running Rikki Non seq for a while but I didn't like the lag. I was still having some boost problems, so i decided to switch back and solve those before I used the 'cure all'. For the kind of driving that I enjoy, the sequentials are more for me... I like the wider power band for the twisties...
Note the snapped Turbo Control (pressure) solenoid and EGR solenoid. Had to drill out of the nipple so i could put a metal one in there. What a PITA.
TC solenoid seems to be the main cause for secondary boost problems as it is a different type of solenoid from the others. If I remember correctly it cycles on and off a lot more than the other solenoids so it is more prone to breaking. Anyone know where to find that solenoid for cheap?
I was running Rikki Non seq for a while but I didn't like the lag. I was still having some boost problems, so i decided to switch back and solve those before I used the 'cure all'. For the kind of driving that I enjoy, the sequentials are more for me... I like the wider power band for the twisties...
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