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-   -   seq boost controllers? (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/seq-boost-controllers-709138/)

SufferRotary Nov 30, 2007 03:14 PM

seq boost controllers?
 
are there any electric boost controllers that can work two turbos? If so who makes them and where can I get one?

just wondering

thanks marty

bryant Nov 30, 2007 03:20 PM

Blitz D1 Spec SBC

bryant Nov 30, 2007 03:20 PM

ebay

4CN A1R Nov 30, 2007 05:11 PM

what do you mean?? do you mean controlling boost seperately between turbos? if you just want an ebs for the whole tt system there are many out there. the greddy profec-b seems to be the most popular and most liked.

SufferRotary Dec 1, 2007 09:32 AM

better question, do you need a special boost controller if you are running Sequential turbo setup? I know now they make Sequential boost controllers but are they needed?

DarkLikePoe Dec 1, 2007 11:22 AM

Knightsports EBC III. Love it. It's not as fancy as some, but it does a great job controlling boost and it was a SUPER easy install.

Stix37867 Dec 1, 2007 03:09 PM


Originally Posted by DarkLikePoe (Post 7572951)
Knightsports EBC III. Love it. It's not as fancy as some, but it does a great job controlling boost and it was a SUPER easy install.

+1

Very simple and straight forward. Simply set the boost you want and that's it. None of that guessing with the duty cycle crap.

moconnor Dec 1, 2007 03:24 PM


Originally Posted by SufferRotary (Post 7572718)
better question, do you need a special boost controller if you are running Sequential turbo setup? I know now they make Sequential boost controllers but are they needed?

Most people just attach the boost controller to the wastegate, which usually works to control boost in a sequential system.

I have two MBCs on my car - one attached to the wastegate and the other to the precontorl line. However, despite a lot of experimenting I could never get consistent precontrol regulation of prespool.

You should be fine with one.

Mahjik Dec 1, 2007 03:30 PM


Originally Posted by SufferRotary (Post 7572718)
better question, do you need a special boost controller if you are running Sequential turbo setup? I know now they make Sequential boost controllers but are they needed?

While there are two turbos, there is only one wastegate. Most people go with the Greddy Profec series. I would suggest the same as there is plenty of information on installation as well as configuration here on the forum.

FD3S2005 Dec 1, 2007 04:36 PM

i got the greddy type s on ebay for around 100 cheaper brand new,, and it works great

arghx Dec 2, 2007 12:44 AM

What about the boost control on the Power FC, which controls the stock solenoid? Is that any good?

Mahjik Dec 2, 2007 08:44 AM


Originally Posted by arghx (Post 7574985)
What about the boost control on the Power FC, which controls the stock solenoid? Is that any good?

Since it's using the same mechanism to control boost as the stock ECU, it just as good as stock (which isn't all that great).

TRISPEEDFD3S Dec 2, 2007 11:35 AM


Originally Posted by Stix37867 (Post 7573579)
+1

Very simple and straight forward. Simply set the boost you want and that's it. None of that guessing with the duty cycle crap.

Yeah, but you have custom solenoids. If someone is running on stock solenoids and using the EBSIII, you can only go so far with moding before it becomes unreliable since it works in conjunction with the factory setup which isn't too great.

Stix37867 Dec 2, 2007 02:51 PM

I'm using Saxyman's first set that he ever made, actually the ones he built for his car, which did not include the wastegate and precontrol solenoids. Control on the stock turbo control soleniods are amazing. All that was needed was a well researched and tested system.

I do have a ported wastegate though too but that was needed due to the open exhaust without a cat and free-flowing intake.

SufferRotary Dec 4, 2007 05:17 PM

in other words I can use one manual one to control both??? sweet!!!

SufferRotary Dec 4, 2007 05:46 PM

wait I thought there were two wastegates in the seq setup? so damn, I am lost.

moconnor Dec 4, 2007 05:51 PM

Just one. There is a prespool gate on the primary turbo which directs some boost to the secondary turbo before transition, but this is not a wastegate per se, though it does operate in somewhat the same way.

GoodfellaFD3S Dec 4, 2007 06:09 PM

If you're going to get a Greddy ebc (which I recommend), go with the old school profec b or the new style spec-s. Stay away from the spec 2 (digital).

Mahjik Dec 4, 2007 06:37 PM


Originally Posted by SufferRotary (Post 7585093)
wait I thought there were two wastegates in the seq setup? so damn, I am lost.

http://www.autosportracetech.com/RX-...BigPicture.htm


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