View Poll Results: When I went sequential ..............
When I went non sequential, my sequential system was working properly
20
68.97%
When I went non sequential, my sequential system was NOT working properly
9
31.03%
Voters: 29. You may not vote on this poll
Poll: for those who went non sequential
#3
looking for 82-83 corolla
iTrader: (6)
Join Date: Aug 2005
Location: ar
Posts: 451
Likes: 0
Received 0 Likes
on
0 Posts
it just wasent wrth it at the time i did it i didnt know what the major difference was and i had to build the loong block from decifering the FSM and tring to make sure everything was in working order. i believe i had every boost problem iv read on the forums one right after the other and after i spent about 150ish on solenoids and misc rechecking vac lines and chambers it was time to go non. although for the time i have these stockers i would have liked the seq for the insta spool but oh well just gets me used to the t66 when i slap it on there.
z
z
#6
Back in the BOOST Game
iTrader: (15)
My sequential was working fine. But as I removed emissions, I decided to do everything including porting and polishing from the engine to the downpipe. I will post my new dyno run soon, once I get it scanned. I will say, the car pulls like a freight train and I haven't even gotten the tune 100% sorted out yet. The #s were 315 RWHP and 280 RWTQ.
#7
FREAK ALL OUT!!!
iTrader: (17)
Join Date: Jul 2006
Location: Vancouver, WA
Posts: 1,071
Likes: 0
Received 0 Likes
on
0 Posts
My sequential was working fine. But as I removed emissions, I decided to do everything including porting and polishing from the engine to the downpipe. I will post my new dyno run soon, once I get it scanned. I will say, the car pulls like a freight train and I haven't even gotten the tune 100% sorted out yet. The #s were 315 RWHP and 280 RWTQ.
Trending Topics
#9
Banned. I got OWNED!!!
Join Date: Mar 2009
Location: NC
Posts: 1,045
Likes: 0
Received 0 Likes
on
0 Posts
So much for the "too dumb to fix the sequential system" theory, looks like most people had a perfectly functional system when they made the switch, as was my case. Doesn't this get back to human pride in some little eltie "group"? We, the sequentialists!
But in the real world, simplicity always wins, and especially when it comes to this finicky car. There is nothing more beautiful imo then a track ready FD engine bay completely stripped of all superfluous street related crap. You can actually see the rotor housings. When something breaks, you can diagnose it very quickly.
But in the real world, simplicity always wins, and especially when it comes to this finicky car. There is nothing more beautiful imo then a track ready FD engine bay completely stripped of all superfluous street related crap. You can actually see the rotor housings. When something breaks, you can diagnose it very quickly.
#10
FREAK ALL OUT!!!
iTrader: (17)
Join Date: Jul 2006
Location: Vancouver, WA
Posts: 1,071
Likes: 0
Received 0 Likes
on
0 Posts
So much for the "too dumb to fix the sequential system" theory, looks like most people had a perfectly functional system when they made the switch, as was my case. Doesn't this get back to human pride in some little eltie "group"? We, the sequentialists!
But in the real world, simplicity always wins, and especially when it comes to this finicky car. There is nothing more beautiful imo then a track ready FD engine bay completely stripped of all superfluous street related crap. You can actually see the rotor housings. When something breaks, you can diagnose it very quickly.
But in the real world, simplicity always wins, and especially when it comes to this finicky car. There is nothing more beautiful imo then a track ready FD engine bay completely stripped of all superfluous street related crap. You can actually see the rotor housings. When something breaks, you can diagnose it very quickly.
#11
Still got it.
iTrader: (2)
You can have a track prepped FD that still retains the sequental turbos.
In fact, u bet a seq. FD would do better on a road race rather than a non-seq.
Non-seq is kind of a half *** move in my opinion.
Why keep the restrictive exhaust manifold & turbos, if you are not goin' to capitalize on their original intent:
TO BE RAN SEQUENTALLY!
Just go with a single like everyone else (doesn't always solve everyone's problems)
or
True twin turbos, like Howard Coleman did (that **** was baller)
In fact, u bet a seq. FD would do better on a road race rather than a non-seq.
Non-seq is kind of a half *** move in my opinion.
Why keep the restrictive exhaust manifold & turbos, if you are not goin' to capitalize on their original intent:
TO BE RAN SEQUENTALLY!
Just go with a single like everyone else (doesn't always solve everyone's problems)
or
True twin turbos, like Howard Coleman did (that **** was baller)
#13
Still got it.
iTrader: (2)
The seq. System isn't that bad if you don't half *** it when you trouble shoot it.
Full tear down
Replace the crappy OEM check valves with the Dale Clark viton check valves.
Check all solenoids for proper functionality TWICE
Replace old rubber lines with new ones with the material of your choice. (silicone, viton or new OEM pre molded rubber)
Get a FSM or read a couple of threads about hose jobs.
If you are going non seq. because you are too lazy to figure it out, then maybe you should buy an integra.
Make the switch because you want to, not because you can't figure something out.
Full tear down
Replace the crappy OEM check valves with the Dale Clark viton check valves.
Check all solenoids for proper functionality TWICE
Replace old rubber lines with new ones with the material of your choice. (silicone, viton or new OEM pre molded rubber)
Get a FSM or read a couple of threads about hose jobs.
If you are going non seq. because you are too lazy to figure it out, then maybe you should buy an integra.
Make the switch because you want to, not because you can't figure something out.
#14
Eats, Sleeps, Dreams Rotary
iTrader: (14)
Yup - check valves, hoses and solenoids. These are the three main failure points in the stock system.
Spend $15 for three check valves, $100 or so for hoses, and $50 for some used solenoids (people sell these for dollars per pound, and new ones often don't perform to spec, so used is fine), tested per dgeesaman's write-up, and then get ready to delve into the rat's nest. FPD, injector cleaning, and the fuel line recall kit should be done while in there (and should arguably be done in any case).
This is no more than a solid weekend of work (two, if you are shipping out injectors) and tests/replaces most of the components that give this car a bad reputation.
I don't doubt that there are some failure modes that the above will not address, but if someone who is not willing to go to at least this much effort, deserves a subscription to Consumer Reports.
Spend $15 for three check valves, $100 or so for hoses, and $50 for some used solenoids (people sell these for dollars per pound, and new ones often don't perform to spec, so used is fine), tested per dgeesaman's write-up, and then get ready to delve into the rat's nest. FPD, injector cleaning, and the fuel line recall kit should be done while in there (and should arguably be done in any case).
This is no more than a solid weekend of work (two, if you are shipping out injectors) and tests/replaces most of the components that give this car a bad reputation.
I don't doubt that there are some failure modes that the above will not address, but if someone who is not willing to go to at least this much effort, deserves a subscription to Consumer Reports.
#15
Banned. I got OWNED!!!
Join Date: Mar 2009
Location: NC
Posts: 1,045
Likes: 0
Received 0 Likes
on
0 Posts
And how long will that last before you're back under the hood trying to diagnose the next vacuum line that popped off or solenoid that failed?
Here's a better solution: chuck the whole thing right in the garbage can with the smog pump, plastic AST, pre-cat, tiny intercooler, plastic radiator, IC pipes, and worthless ECU.
Mazduh may have had their head up their ***, but I sure don't have to live with their errors on an ongoing basis....
Here's a better solution: chuck the whole thing right in the garbage can with the smog pump, plastic AST, pre-cat, tiny intercooler, plastic radiator, IC pipes, and worthless ECU.
Mazduh may have had their head up their ***, but I sure don't have to live with their errors on an ongoing basis....
#16
Rotary Enthusiast
iTrader: (34)
Join Date: Apr 2009
Location: japan
Posts: 771
Likes: 0
Received 0 Likes
on
0 Posts
Theres nothing wrong with the sequential system at stock boost levels. Stock boost levels being the key words. Expecting the stock system to work at non stock levels isn't a problem of design it's a problem of expectation. In 2010 it's hardly fair to judge a system that was designed in the late 80's.
I use hose techniques and have never had a hose pop off, I don't use zip ties or anything else to keep them on there. You have to exert a lot of force to pull the silicon hose off the nipples.
Like mentioned earlier if you want a non sequential system your best solution is a good single turbo.
I use hose techniques and have never had a hose pop off, I don't use zip ties or anything else to keep them on there. You have to exert a lot of force to pull the silicon hose off the nipples.
Like mentioned earlier if you want a non sequential system your best solution is a good single turbo.
#18
AponOUT!?
iTrader: (31)
when i did my non-seq i went all-out: disassembled the turbos 100%, removed both flappers. ported the exhaust housing, ported the turbo hot side inlets, shaved everything off the Y pipe and inserted a splitter, relocated vac lines & the bov, removed the extra butterflies from UIM, disabled the aws, removed everything that wasn't used, etc.
if you do non-seq right, it greatly improves the flow of air in and out of the motor. those who go "poor man's non-seq" are wasting their time IMO.
#19
Back in the BOOST Game
iTrader: (15)
same here.
when i did my non-seq i went all-out: disassembled the turbos 100%, removed both flappers. ported the exhaust housing, ported the turbo hot side inlets, shaved everything off the Y pipe and inserted a splitter, relocated vac lines & the bov, removed the extra butterflies from UIM, disabled the aws, removed everything that wasn't used, etc.
if you do non-seq right, it greatly improves the flow of air in and out of the motor. those who go "poor man's non-seq" are wasting their time IMO.
when i did my non-seq i went all-out: disassembled the turbos 100%, removed both flappers. ported the exhaust housing, ported the turbo hot side inlets, shaved everything off the Y pipe and inserted a splitter, relocated vac lines & the bov, removed the extra butterflies from UIM, disabled the aws, removed everything that wasn't used, etc.
if you do non-seq right, it greatly improves the flow of air in and out of the motor. those who go "poor man's non-seq" are wasting their time IMO.
#20
All out Track Freak!
iTrader: (263)
Join Date: Jul 2001
Location: Charlottesville VA 22901
Posts: 10,672
Received 412 Likes
on
250 Posts
So much for the "too dumb to fix the sequential system" theory, looks like most people had a perfectly functional system when they made the switch, as was my case. Doesn't this get back to human pride in some little eltie "group"? We, the sequentialists!
But in the real world, simplicity always wins, and especially when it comes to this finicky car. There is nothing more beautiful imo then a track ready FD engine bay completely stripped of all superfluous street related crap. You can actually see the rotor housings. When something breaks, you can diagnose it very quickly.
But in the real world, simplicity always wins, and especially when it comes to this finicky car. There is nothing more beautiful imo then a track ready FD engine bay completely stripped of all superfluous street related crap. You can actually see the rotor housings. When something breaks, you can diagnose it very quickly.
#21
needs more track time
iTrader: (16)
I have gone 5-6 years w/o any issue whatsoever with my sequential system. It is complex and time consuming to sort out but I much prefer it over non-seq for the type of driving that I do.
Note that the reason I went w/o any problems for so long is b/c the solenoids, lines, wiring harness were all new and I didn't touch anything under the UIM during those years.
Note that the reason I went w/o any problems for so long is b/c the solenoids, lines, wiring harness were all new and I didn't touch anything under the UIM during those years.
#24
All out Track Freak!
iTrader: (263)
Join Date: Jul 2001
Location: Charlottesville VA 22901
Posts: 10,672
Received 412 Likes
on
250 Posts
I bet it's pricey but for anyone who wants to do it I have all of them but the turbo wastegate solenoids and I'll let them go for 225 shipped Add 50 for a very good condition set of used wastegate control solenoids.
I wish I had some amsoil to sell, I hear it's the best oil you can buy
No rice, you know I love you I just couldn't resist
I wish I had some amsoil to sell, I hear it's the best oil you can buy
No rice, you know I love you I just couldn't resist