white dot is the solenoid on the right on mine....i left the plugs in their stock locations....works like a charm...

 

I remember reading about this years ago on the scuderia website and here on the forum - in order for non-seq to work well there can't be any restrictions in the exhaust (except a HF cat or a more restrictive catback like the HKS Turbo CB) The more everythings opened up, the more it's going to flow. Most people will have some trouble with boost creep and porting the wastegate should be done. With your few mods you should see full boost around 5K rpms or a little more which is right. Open it up and it will come down. Get a good ecu and boost controller and non-seq will come alive.

When I went non-seq the car overall felt very different - definitely not as quick and fun to drive. 5th gear is worthless, and downshifting is a regular part of life. Lag is very noticeable but midrange power is good - it's a tradeoff of power. Personally I've been seq and non-seq with stock twins, and seq and non-seq with upgraded twins and seq. kicks ***. It's a pain to find boost problems, but I've never had any boost problems with my seq setup yet...

 

nuff said

 

agreed....plus i kinda like lag...lol...especially when the boost comes sharp, all at once.....

 

if you can remove the emissions related junk, ie. ACV, EGR, ect., the sequential set up is not that hard to troubleshoot. (gotta watch out for that damn prespool door though )

 

whoever was having problems with getting full boost....i had my CRV tee'd into my BOV line and had the same problem. i capped it off, and got much quicker spool and 12lbs instantly. time to get rid of the pills!

 

I can't remove emissions related anything, cus i live in F'ing massachusetts, and we have to pass emissions every year till hell freezes over

Now that thats outta my system

I think I'll give it shot if it ever stops raining in the hell-hole of a state.

 

You like lag????? I guess some people are different - I get a full 15 psi at 2800 rpms running sequentially and have never had a boost problem...I've known many who have been sequential for years without boost problems..it's rare, but it happens.

 

yeah..im kinda strange...i enjoy the feeling of a gradual but sharp spike of boost....followed shortly by the screaming of rubber fighting for grip!!!.....gives me a chub just thinkin bout it.............the sequential setup was definately more driveable....but the non-seq. just does it for me.......

 

Just curious, have you went to Wargasm's dyno page and compared a poor-man's non-seq dyno to a regular seq dyno using stock turbos?

I did. After seeing the result, there is no way it's go non-seq unless it was on BNR's Stage 3 or some other upgraded turbos.

 

15psi @ 2800rpm seq is not the same as any psi on non-seq since that 15psi is from one turbo. The psi may be high but the amount of air flowed is less, just like 15psi on twins is not equal to 15psi on a T78 etc.
Just thought I'd through that in there for thought

 

can anyone justify this thought?
personally, I think it's bs. It just doesn't logically make sense to me.
If all you change is the turbo, the flowrate through the rest of the intake system remains VIRTUALLY unchanged, therefore will have virtually the same flow at a given pressure differential. you do however change the exhaust side significantly. IMO, the gains are from reduced exhaust restriction and cooler intake charge. just my $0.02

 

I have no cats and just got an inspection sticker.
Just gotta know the right places to go to.

 

Well you boost 15psi on a seq. system, both of the tubos are spooling. So you are getting the same amount of air as 15psi on non-seq.

 

I agree - it's not the same at all since there is only 1 turbo spinning until transition at full boost, then the other turbo comes online at around 4200 rpms when running sequential. In a well running non-seq setup, both turbos start spooling and will both reach full boost by around 3600-3800 rpms giving you much better midrange power between 3500 and 4500 rpms or so - after transition, they both make the same power. But having been seq and non-seq with both stock twins and upgraded twins, IMO, sequential is much more fun to drive - especially if you live in traffic areas. Non-seq definitely gives you some tire-shredding single-turbo like power at about 4K rpms - different strokes for different folks

 

vudoodoodoo: Above the transition point non-seq and seq flow the same amopunt of air at 15psi, but below that non-seq flows more provided that they can spool up that fast. Like kwikrx7 said, non-seq will flow more air in the midrange but since it's not spooled at lower rpms will fall short there. I ported my engine for higher rpm peak power so non-seq makes sense to me, I'm not really looking for power under 4Krpm but after that I want strong linear power like a single which is what I get. BNR stage III's in seq mode sounds fun though

 

Ok...now I don't understand whats happening. When I first did the conversion 4 days ago everything was boosting properly ie. I was getting 10psi, now it barely boosts 3psi. I'm assuming its a boost leak but from where. I checked my couplings and my tca valve and cca valve and everything seems legit. What could be the problem? The whole purpose of doing non-sequential was to get rid of my secondary boost problems...it was boosting awesome until today...wtf. Any suggestions would be great.

 

Nevermind guys...the boost leak was near the throttle body. Apparently the nuts came loose gradually on the throttle body and then greated a massive boost leak.