Why FDs Are Blowing Up???
02-03-02 | 12:20 PM
#29
you can take it to www.sevenspeed.com that would probably be your best bet 
generally mazda dealers break more than they fix on rx7's........
generally mazda dealers break more than they fix on rx7's........
02-03-02 | 12:43 PM
#30
Adrenaline
Joined: Feb 2001
Posts: 1,261
Likes: 0
From: Long Island, NY
The compression test will cost you around $45. Make sure to get the car warmed up before getting a compression test. It only takes a few minutes to do a compression test. Also, make sure to tell them that you want the results from the compression from the machine.
02-03-02 | 09:28 PM
#33
Junior Member
Joined: Oct 2001
Posts: 29
Likes: 0
From: Ellicott City, Maryland
I believe most FD motors have overheating issues. That is why they need to be rebuilt so soon. If you maintain the car and dont do anything stupid, they wont fail. It's definately user error. Detonation on the other hand is purely the tuners fault. All these nice stand-alone systems will definately help, as long as you know what you are doing.
B
B
02-04-02 | 02:09 AM
#34
Full Member
Joined: Mar 2001
Posts: 182
Likes: 0
From: EA
Re: Why FDs Are Blowing Up???
Originally posted by LUV94RX7
I'd like to start a thread to discuss why we have so many FDs blowing up and what we can do to help eliminate the problem. I know many owners are planning on upgrading to new ECUs and some to single turbos. Many have already upgraded and some have blown their motors. Some of the blame seems to be aimed at ECUs like PFS PMC, PFC etc.
I'd like to start a thread to discuss why we have so many FDs blowing up and what we can do to help eliminate the problem. I know many owners are planning on upgrading to new ECUs and some to single turbos. Many have already upgraded and some have blown their motors. Some of the blame seems to be aimed at ECUs like PFS PMC, PFC etc.
But there's no short answer to a question like that. I've also seen my fair share of Supra's who have wrecked their motors, as well as Talons, etc..albeit the rotary can be more sensitive to detonation.
To make a long story short...2 things:
1. Spend the time and money to DYNO TUNE with a WIDE LAMBDA O2.
2. Make sure your cooling system is running well.
And that's about it. Most people who lost their engines, did so, because they were either running too lean (detonation), or overheating.
Good luck
02-04-02 | 02:27 AM
#35
Senior Member
Joined: Nov 2001
Posts: 370
Likes: 0
From: San Diego, CA
Originally posted by Toadman
I don't see an epidemic of FD's blowing up now, do you? Maybe 'cause it's winter, but if everyone does the reliability mods and "stair-steps" the performance upgrades, there's no reason why it wouldn't be reliable and stretch the mileage. Ask the guys with 70-100k on their motors what they did to increase longevity. The Rex is a "thinking man's sports car", because of its unique engine and needed attention to detail and proper maintenance. It's not a turn-the-key plug-and-play car like *cough* other 'sports' cars. Call it eccentric, call it wierd technology, call it a pain in the a$$, but there's nothing sweeter or addicting than a rotary perfectly balanced and tuned for driving.
I don't see an epidemic of FD's blowing up now, do you? Maybe 'cause it's winter, but if everyone does the reliability mods and "stair-steps" the performance upgrades, there's no reason why it wouldn't be reliable and stretch the mileage. Ask the guys with 70-100k on their motors what they did to increase longevity. The Rex is a "thinking man's sports car", because of its unique engine and needed attention to detail and proper maintenance. It's not a turn-the-key plug-and-play car like *cough* other 'sports' cars. Call it eccentric, call it wierd technology, call it a pain in the a$$, but there's nothing sweeter or addicting than a rotary perfectly balanced and tuned for driving.
02-04-02 | 07:15 AM
#36
Thread Starter
Oldie, but Goodie
iTrader: (3)
Joined: Mar 2001
Posts: 1,778
Likes: 1
From: ROSEVILLE, MN
Re: Re: Why FDs Are Blowing Up???
Originally posted by Apexi And that's about it. Most people who lost their engines, did so, because they were either running too lean (detonation), or overheating.Good luck
Thanx
Ken
02-05-02 | 01:36 PM
#37
Full Member
Joined: Jul 2001
Posts: 222
Likes: 0
From: Daytona, FL
Originally posted by bladz311
I checked the vacume hoses, but didn't see any that were detached. I had the car up too 150 before I did any of the mods. It took it without a problem. How much would it cost to get fixed if it were my seals, because I'm sick of driving the mini van around
.
I checked the vacume hoses, but didn't see any that were detached. I had the car up too 150 before I did any of the mods. It took it without a problem. How much would it cost to get fixed if it were my seals, because I'm sick of driving the mini van around
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through exhaust, Pettit unlimited ECU, And a greddy profec B. Had it tuned by a guy from Pettit @ 12 psi. Even got a new koyo radiator to help w/ cooling and An ACT clutch w/ lightened flywheel. I was running stock engine, turbos and intercooler. Had work done w/ 57000 on the motor and now at 60000 when boom..It was a cool evening and did not see any spiking or overboosting when detonation occurred. Happened at WOT when second turbo came on. Don't know extent of damage (turbos,etc.). I can even get the car fired right now to get it for a comp. test. Probably have it towed.....G
