adam c

iTrader: (2)

If you want to be able to leave your car, and not think about it, you have purchased the wrong car. A turbo timer is a waste of time, space , and money. It is an additional device that can fail with bad consequences. There have been several threads over the last few years about turbo timers that failed, leaving the car running for extended periods.

Of course, there is also the story of the fool with a turbo timer who was pulled over by the police. His car wouldn't shut off. The officer yelled at him to turn it off, then drew his weapon when the car was not shut down. The situation was eventually diffused, but would not have occurred with no turbo timer.

One again, a turbo timer is a useless toy, and is not needed. Simply driving the car easy at the end of your drive is all that's needed. If someone cant figure out how to do that, then they are certainly stupid enough to "need" a turbo timer.

tengellio

Yeah i would get boost gauge first.

mikeric

iTrader: (20)

I'm glad you feel that way. As they say, opinions are like a*sholes, everyone has one and they all stink.

No one "needs" a turbo timer. No one needs a 400 Hp FD either. It is a matter of convenience and personal taste. The guy wants one, you don't need one. End of story.

Pic

iTrader: (1)

I agree with you that a turbo timer is not needed, but some ppl like to leave quickly there car to save 5 min of waiting

But I still believe that many of the car didn't turn off threads, used a cheap ebay copy I can't prove it, but my friends bought one and the timer don't turn off the car.

And you should always use the brake switch as a back up if you want to stop the engine when you want. If you are loosing oil or whatever this can save a motor.

I drive my car easy the last 5min and let it idle if I pushed it hard and still don't want to buy a timer. Maybe someday I will but not now I'm still not that lazy

adam c

iTrader: (2)

If someone does something foolish, is cannot be excused as a matter of personal taste.

Well put

ArmitageGVR4

iTrader: (13)

I have a turbo timer as a convenience so in your esteem it immediately disqualifies me as competent enough to own an FD? I'm glad to have your opinion on the matter, so I can go sell my car because I am not worthy of it.

adam c

iTrader: (2)

There are 2 classifications for owners of FD's with turbo timers:

1. Those drivers who bought cars from someone foolish enough to install a turbo timer.

2. Those drivers who bought turbo timers because they didn't know any better.

Sukai94

I have had a "manual turbo timer" for years. LOL

This thread is about boost controllers though. I don't know how it turned into an argument on whether or not turbo timers are necessary. We all have our opinions and have shared them. I can be my own turbo timer but maybe I want to put on on my car because my brother may take my FD out and I cant trust him to properly cool it? Who knows? I wouldn't bash someone on having or not having a turbo timer. It is like the mineral vs. synthetic argument. It never ends!

I have heard that running an aftermarket downpipe and an aftermarket intercooler will significantly raise my boost. What does everyone think about that? I personally don't think it will but what do I know? What can the stock fuel system support safely? Will my car compensate for lets say 11lbs or will it run lean (assuming everything else is in working order, it should be because everything is brand-effing-new)

DaveW

Experience has shown that flow improvements like yours CAN raise boost to levels high enough to cause problems. In most cases, however, people, including myself, got along fine for years not knowing enough to worry about it. In my case, I had the PF intake, IC, and catback on for years before I decided to install a DP. At that point, I knew enough to get a boost gauge and boost controllers.

So, did I have too much boost in some conditions with the stock boost "control" system before I got the gauge? Almost certainly, since the stock system does not compensate well for cold weather. Did it cause problems for me? No, because I almost always ran Sunoco 94 octane gas, and the boost was not high enough to cause fuel cut.

Therefore, the only way you will know is to get a boost gauge, and keep your boost below the values in the attached table, using a boost controller if necessary.

spaceman_spiff

since we're on the topic of controlling boost, i recently had my car checked out by a local rotary shop and they said that a boost controller was not necessary. the technician said something along the line of "pills" plugging up certain holes to prevent boost from spiking past 10 psi, and that i could probably just run my car the way it is without a controller. the reason he said he did not believe in them was because people get greedy and turn up their boost, blowing the engine.

this was surprising to hear because it goes against what i read on here, which is "get a boost controller asap". this guy works on rx7's all the time but hearing him say this made me think whether he knows something i don't or maybe he doesn't know enough. have you guys ever heard of this?

DaveW

A boost controller can be used to turn boost up, but, in our case, especially with the stock ECU, it is usually used to keep boost controlled at a safe (lower) level than it would otherwise reach.

Boost controller is usually necessary only if flow (intake, exhaust) mods have been done to the extent that the stock "control" cannot regulate boost. So, if your car is stock, running with the stock setup should be fine.

BTW, the stock setup balances the "pill" orifices against the variable "orifices" created by the WG and PC solenoids, which are controlled by a pre-programmed map in the ECU. The stock setup does not use boost feedback to control boost.

Dave

Sukai94

Thanks for the chart Dave!

Sukai94

Any brand recommendations on boost controllers?

How about some help in finding a good air/fuel gauge? (google wasnt much of a help lol)

DaveW

Damian liked his Hallman MBC's in this link ( https://www.rx7club.com/showpost.php...6&postcount=10 ), and I like my "Home Depot" units that are also discussed here. I have heard also of some "Joe P" MBC's that some folks like.

I also like the Autometer (#3376) boost gauge I have. It is an electronic stepper-motor unit with peak-recall and warning functions. I got it from Summit Racing.

gracer7-rx7

iTrader: (16)

Greddy Profec B

Either the original one with the ***** or the new Spec S with the *****.

Plenty of good thread on that topic.

ArmitageGVR4

iTrader: (13)

I've used a Joe P. for the last 6 or 7 years on my DD. It's been completely trouble free.

darkphantom

iTrader: (2)

fd owners will always need boost controllers cause eventually you will be modding it and without it you wont be able to trully have fun!