3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

Simplified Sequential OR Full Non-seq...?

Thread Tools
 
Search this Thread
 
Old 10-06-04, 11:29 PM
  #1  
Powered by** Rotary

Thread Starter
 
BoOsTin FD's Avatar
 
Join Date: Feb 2002
Location: St. Louis
Posts: 2,369
Received 0 Likes on 0 Posts
Simplified Sequential OR Full Non-seq...?

Well, My buddy and I are rebuilding my engine. Well actually, he'll be doing that part It will be ported, by him as well. Twins are new, injectors are cleand, etc. I can't decide weather to go Full non-sequential or Simplified Sequential.

Problem with Full Non-Sequential is The lag and the Loudness. It will be too loud with open exhaust and big port, and i'm not a big fan of it.

Simplified Sequential, only problem i see is putting that stuff back together and I don't know how will the transition be with Heavy Port.

What do you guys think? IF I went non-seq with Big port and open exhaust, at what RPM would i have 14psi?


Thanks a lot.
BoOsTin FD is offline  
Old 10-07-04, 12:04 AM
  #2  
The Laser Man

 
akiratdk's Avatar
 
Join Date: Oct 2003
Location: GLENDALE, CA
Posts: 1,326
Likes: 0
Received 1 Like on 1 Post
I have a full non-seq and intake, downpipe, Racing Beat Cat back.... Idling is pretty loud for my taste... like a muscle car idle.... I really don't like it that much.... but it sounds good at higher RPM's... Anyways.... you will get 14 pounds of boost at around 3500 rpms.
At least thats what mine does.... and after that...hold on to your seats!!~~~
akiratdk is offline  
Old 10-07-04, 09:08 AM
  #3  
Powered by** Rotary

Thread Starter
 
BoOsTin FD's Avatar
 
Join Date: Feb 2002
Location: St. Louis
Posts: 2,369
Received 0 Likes on 0 Posts
Is your engine stock?

With Heavey ported engine, i should get boost earlier, right? My concern is First gear mostly.

Amel
BoOsTin FD is offline  
Old 10-07-04, 09:40 AM
  #4  
Do It! Do It!

 
jsplit's Avatar
 
Join Date: Mar 2004
Location: Crofton, MD
Posts: 1,994
Likes: 0
Received 0 Likes on 0 Posts
How does non-seq make your cars louder? I'm missing the technical logic behind this...
jsplit is offline  
Old 10-07-04, 09:52 AM
  #5  
DGRR 2017 4/26-4/30, 2017

iTrader: (13)
 
Herblenny's Avatar
 
Join Date: Nov 2001
Location: Alabama
Posts: 13,597
Likes: 0
Received 5 Likes on 4 Posts
I'm a fan of seq. set up.. So, I would lean more toward doing non seq.. Its pretty simple and works well!
Herblenny is offline  
Old 10-07-04, 10:01 AM
  #6  
Tony Stewart Killer.

iTrader: (12)
 
Snook's Avatar
 
Join Date: Mar 2002
Location: London
Posts: 5,156
Likes: 0
Received 4 Likes on 4 Posts
Do not go non seq. What are you worried about with simplified sequential? It's great, just about 26ish hoses and easy to setup. You wont get 14psi by 3500 trust me

I wouldn't let your friend rebuild your engine though and especially port it...that's the part you don't want to go cheap on its kinda important.

oh and what happened to your engine before? if you broke an apex seal your new turbos may not be so new any more
Snook is offline  
Old 10-07-04, 10:05 AM
  #7  
Mr. Links

iTrader: (1)
 
Mahjik's Avatar
 
Join Date: Aug 2001
Location: Kansas City, MO
Posts: 27,595
Received 40 Likes on 26 Posts
Originally Posted by BoOsTin FD
Simplified Sequential, only problem i see is putting that stuff back together and I don't know how will the transition be with Heavy Port.
There is no problem with the transition in relation to porting. RTS3GEN has a Raceported motor from Pettit and has been running sequential for years without a problem. I've been in the car and it's a monster.

Originally Posted by akiratdk
you will get 14 pounds of boost at around 3500 rpms.
lol...
Mahjik is offline  
Old 10-07-04, 10:47 AM
  #8  
omgwtfposlol

 
particleeffect's Avatar
 
Join Date: Dec 2002
Location: Orange City, FL
Posts: 862
Likes: 0
Received 0 Likes on 0 Posts
since i'm going to have to bite the simplification bullet soon, i need a block off plate kit to do it right? and do i need to order gaskets too?
particleeffect is offline  
Old 10-07-04, 10:54 AM
  #9  
Mr. Links

iTrader: (1)
 
Mahjik's Avatar
 
Join Date: Aug 2001
Location: Kansas City, MO
Posts: 27,595
Received 40 Likes on 26 Posts
Originally Posted by particleeffect
since i'm going to have to bite the simplification bullet soon, i need a block off plate kit to do it right? and do i need to order gaskets too?
Well, you should use Block Off plates to do it right. You don't need gaskets with them, just a thin layer of gasket sealer will work just fine with the plates.
Mahjik is offline  
Old 10-07-04, 11:02 AM
  #10  
They took our jobs!

 
TurboLumpy's Avatar
 
Join Date: Jul 2004
Location: Marlton, nj
Posts: 884
Likes: 0
Received 0 Likes on 0 Posts
im runnin the non-seq 99 specs...hit full boost closer to 3800? 3500 youll still be building

but it is alot of fun id defly recommend it
TurboLumpy is offline  
Old 10-07-04, 03:18 PM
  #11  
Senior Member

iTrader: (2)
 
TechTrix's Avatar
 
Join Date: Jan 2003
Location: Los Angeles
Posts: 409
Likes: 0
Received 0 Likes on 0 Posts
seq is quieter at idle becase all the exhaust is going into one turbo exhaust housing, so theres more back pressure, its like having another muffler.

Michael
TechTrix is offline  
Old 10-07-04, 03:24 PM
  #12  
Rotary Freak
 
alberto_mg's Avatar
 
Join Date: Aug 2002
Location: nyc+li, ny
Posts: 2,690
Likes: 0
Received 0 Likes on 0 Posts
i'm running simplified sequential. i'd sooner go single that non seq.
alberto_mg is offline  
Old 10-07-04, 03:31 PM
  #13  
"Challenged" since 1993

 
Rotarded's Avatar
 
Join Date: Sep 2002
Location: Columbus, Oh
Posts: 540
Likes: 0
Received 0 Likes on 0 Posts
FULL NON-SEQUENTIAL
385 RWHP (Mustang Dyno) 1.05 Bar (15.2 psi) peak from PFC
11.83 @ 116 1.03 Bar (14.9 psi) peak from PFC

I'm not missing the sequentials at all!!

Mods in sig:

Last edited by Rotarded; 10-07-04 at 03:33 PM.
Rotarded is offline  
Old 10-07-04, 03:33 PM
  #14  
Mr. Links

iTrader: (1)
 
Mahjik's Avatar
 
Join Date: Aug 2001
Location: Kansas City, MO
Posts: 27,595
Received 40 Likes on 26 Posts
Originally Posted by Rotarded
FULL NON-SEQUENTIAL
385 RWHP (Mustang Dyno) 1.05 Bar (15.2 psi) peak from PFC
11.83 @ 116 1.03 Bar (14.9 psi) peak form PFC

I'm not missing the sequentials at all!!
How about someone running 11:77 sequentially on the stock fuel system (using a Pettit ECU)?
Mahjik is offline  
Old 10-07-04, 03:46 PM
  #15  
Hey, where did my $$$ go?

 
SPOautos's Avatar
 
Join Date: Feb 2001
Location: Bimingham, AL
Posts: 4,413
Likes: 0
Received 0 Likes on 0 Posts
I ran stock seq, then simplified seq, then finally non seq. I liked the simplified pretty well, if you REALLY want do stay seq go that route. Personally if it was me I'd do what I already did and go non seq.

The non seq is going to start making more power at about 3500rpms if its FULL NON SEQ. Even if your boost isnt all the way up it doesnt matter, cause boost for boost the non seq will make more power up to about 5Krpms because its running 2 turbos not 1 like seq is. If you keep everything the same non seq should start making more power at 3500rpms.

Pressure isnt everything, the efficiency of the airflow is what matters and its definatly better when your running 2 turbos instead of one.

Side benifit is this...imagine how easy it will be to leave all that **** laying in the garage and only use 2-3 vacume lines. When you look under the uim all you'll see is fuel rails and the top of the engine.....sounds good to be, I love it.

Stephen
SPOautos is offline  
Old 10-07-04, 04:38 PM
  #16  
Recovering Milkaholic

iTrader: (7)
 
Fd3BOOST's Avatar
 
Join Date: Jan 2002
Location: Budds Creek, Maryland
Posts: 8,203
Likes: 0
Received 0 Likes on 0 Posts
Non sequential does not cause you car to be any louder. Who is the retard that started that? Personally i think non sequential is the way to go if you have twins. Its the lack of shitty boost spikes and transition that is the real bonus, not the engine bay space you gain.
Fd3BOOST is offline  
Old 10-07-04, 04:43 PM
  #17  
White chicks > *

iTrader: (33)
 
1QWIK7's Avatar
 
Join Date: Jul 2003
Location: Secaucus, New Jersey
Posts: 13,147
Likes: 0
Received 1 Like on 1 Post
never drove sequential.. my car was already coverted to non seq when i bought it.. the guy even told me that the car is slow and im like huh? then he said the magic happens after 4k and im like smiling thinking ok, what is wrong? its gonna blow huh?

so i took it out on the highway, short shifted 1st and 2nd, brought it to third and i waited for some free road, i punched it, it lagged since i was at 3000rpm, 4000rpm i can feel some magic, by 4500rpm, i was pissing in my pants holding on to the steering wheel.. LOL

and thats only 10psi, its at 8 right now but still, i dont think i ever want to experience to seq LOL
1QWIK7 is offline  
Old 10-07-04, 04:49 PM
  #18  
Super Snuggles

 
jimlab's Avatar
 
Join Date: Feb 2001
Location: Redmond, WA
Posts: 10,091
Received 32 Likes on 17 Posts
Originally Posted by Fd3BOOST
Non sequential does not cause you car to be any louder. Who is the retard that started that?
Want to bet? Non-sequential with full exhaust is much louder under 4,500 rpm than sequential is. Above, they're basically the same.

Several FDs with exhausts dyno'd on the same day I did. I even had a stock cat-back on my car at the time while I was waiting on my RB twin tip, and a Borla XR-1 in the midpipe. Everyone stood around and watched while the other FDs were on the dyno. When it was my turn, by the time I ended my first run, the only guy left in the service bay was the dyno operator, and he had ear muffs on. Everyone else quickly vacated with their hands over their ears.

So... are you calling me a retard?
jimlab is offline  
Old 10-07-04, 04:57 PM
  #19  
White chicks > *

iTrader: (33)
 
1QWIK7's Avatar
 
Join Date: Jul 2003
Location: Secaucus, New Jersey
Posts: 13,147
Likes: 0
Received 1 Like on 1 Post
damn, i knew my car sounded louder than my friends fd..

lol doh
1QWIK7 is offline  
Old 10-07-04, 05:06 PM
  #20  
Recovering Milkaholic

iTrader: (7)
 
Fd3BOOST's Avatar
 
Join Date: Jan 2002
Location: Budds Creek, Maryland
Posts: 8,203
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by jimlab
Want to bet? Non-sequential with full exhaust is much louder under 4,500 rpm than sequential is. Above, they're basically the same.

Several FDs with exhausts dyno'd on the same day I did. I even had a stock cat-back on my car at the time while I was waiting on my RB twin tip, and a Borla XR-1 in the midpipe. Everyone stood around and watched while the other FDs were on the dyno. When it was my turn, by the time I ended my first run, the only guy left in the service bay was the dyno operator, and he had ear muffs on. Everyone else quickly vacated with their hands over their ears.

So... are you calling me a retard?
It looks though I am if you are arguing with me based on the fact that people there left the room while your car was on the dyno. Show me some decibe readings and I'll retract my comment other wise Derrrr...
Fd3BOOST is offline  
Old 10-07-04, 05:35 PM
  #21  
Super Snuggles

 
jimlab's Avatar
 
Join Date: Feb 2001
Location: Redmond, WA
Posts: 10,091
Received 32 Likes on 17 Posts
Originally Posted by Fd3BOOST
It looks though I am if you are arguing with me based on the fact that people there left the room while your car was on the dyno. Show me some decibe readings and I'll retract my comment other wise Derrrr...
Why bother? Everyone except you seems to know that non-sequential is louder below 4.5k. I was just trying to clue you in so that you didn't look so damn ignorant.
jimlab is offline  
Old 10-07-04, 05:37 PM
  #22  
Do It! Do It!

 
jsplit's Avatar
 
Join Date: Mar 2004
Location: Crofton, MD
Posts: 1,994
Likes: 0
Received 0 Likes on 0 Posts
Well I'm about to go non-seq on my car tomorrow so how bout I pull some decible readings before and after

I'm just curious from a technical point how it's really louder or what exactly causes it to be louder. I mean in my mind it "might" be a little bit louder but not like "OMG thats so loud"

Anyway we shall see tomorrow...
jsplit is offline  
Old 10-07-04, 07:05 PM
  #23  
Recovering Milkaholic

iTrader: (7)
 
Fd3BOOST's Avatar
 
Join Date: Jan 2002
Location: Budds Creek, Maryland
Posts: 8,203
Likes: 0
Received 0 Likes on 0 Posts
Talking

Originally Posted by jimlab
Why bother? Everyone except you seems to know that non-sequential is louder below 4.5k. I was just trying to clue you in so that you didn't look so damn ignorant.

. I am wondering to whom I look ingnorant. The newbs who don't know any better or your presumptuous ***? Either way I'm not sweating it so please don't do me any favors old man. I would also like to ask, since you claim they are at the same noise level above 4500rpm, why would anyone need to leave the shop due to excesive sound during your dyno pull? Do you actually believe all that horseshit you spout off?

Last edited by Fd3BOOST; 10-07-04 at 07:13 PM.
Fd3BOOST is offline  
Old 10-07-04, 07:17 PM
  #24  
addicted to lounge

 
widebody2's Avatar
 
Join Date: Aug 2001
Location: ny,LI
Posts: 1,707
Likes: 0
Received 2 Likes on 2 Posts
"Non sequential does not cause you car to be any louder. Who is the retard that started that?"
You're asking who's the retard that started that??? Or who is the retard,??? I think you've answered that question...any one whos done the switch will tell you that non seq is a whole hell of a lot louder than seq...its not even debatable.

Last edited by widebody2; 10-07-04 at 07:19 PM.
widebody2 is offline  
Old 10-07-04, 07:23 PM
  #25  
Rotary Freak

 
jpandes's Avatar
 
Join Date: Mar 2001
Location: San Francisco, CA
Posts: 2,236
Likes: 0
Received 1 Like on 1 Post
[QUOTE=Rotarded]FULL NON-SEQUENTIAL
385 RWHP (Mustang Dyno) 1.05 Bar (15.2 psi) peak from PFC
QUOTE]

Those are some nice numbers! I see 14.7-15.2 PSI by 3800+ RPM.
Street Port, poor mans' NS conversion,
Only 316 RWHP @14 PSI
jpandes is offline  


Quick Reply: Simplified Sequential OR Full Non-seq...?



All times are GMT -5. The time now is 01:50 PM.