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TURBO questions...and need EMS

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Old 01-12-03, 01:12 AM
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TURBO questions...and need EMS

OK first off I'm swapping a TII motor in my 88 gxl. Im also adding a S-AFC a corksport downpipe and a cork sport single cat back, along with a boost controller and a turboxs rfl BOV. The question is will this cause me to boost to high and need extra fuel? Probably not but i want to be safe. Oh and what HP to the wheels should I expect with this set up. And what should it do in the 1/4?

Also, I heard about a microtec (sp?) EMS that runs like $650 usd. Can i get a link with more info...i coundlt find anything. Thanks ahead of time.
Old 01-12-03, 02:19 AM
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First off, you are keeping your n/a driveline? And your idea of overboosting is probably different from mine (my injectors max out at about 35psi). Boost controller only lets you increase boost. You will need bigger injectors ifyou are running anything over 10psi, which you will. I would be less concerned with hp to the wheels (which is boost dependant) and quarter mile times but if you care go to fc3s-pro.com and check out the wild to mild section, and more concerned with a safe setup.
"I've seen the way you drive, you got a heavy foot, you'll blow yourself up"

Don't know much about the microtech ems, I have a haltech
Old 01-12-03, 02:19 AM
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OK first off I'm swapping a TII motor in my 88 gxl. Im also adding a S-AFC a corksport downpipe and a cork sport single cat back, along with a boost controller and a turboxs rfl BOV. The question is will this cause me to boost to high and need extra fuel?
You will definitely want more fuel. SAFC is pretty much useless on the stock injectors, you'll need some 720cc secondaries and either a FD or walbro 255 lph fuel pump.

Oh and what HP to the wheels should I expect with this set up. And what should it do in the 1/4?
With full intake/exhuast and a EBC set to 12 pounds....

230 rwhp is a good guess. Maybe a little more maybe a little less. Most t2's with full intake/exhuast are doing anywhere from low to high 13's depending majorly on the condition of the turbo/mannifold, driver ability, track conditions, and other uncontrolable variables.
Old 01-12-03, 02:46 AM
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yeah Im keeping the 88 gxl drive line and tranny. I will have around 3k to spend and am doing the work my self so saving alot there. hmm i wasnt expectin to have to upgrade the injectors and fuel pump with my only mod being exhaust...oh well looks like i dish out some extra $$
Old 01-12-03, 09:31 AM
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expect your NA clutch, NA transmission, and possibly your NA rear end to take a **** in a couple thousand miles. (maybe sooner)
also, if you're running this bitch at 12 lbs, your na clutch is going to slip from about 5k to 8k rpms. that clutch is used to seeing like maybe 150hp at the wheels. now its gonna be seeing 220+ do yourself a favor and ATLEAST get a new clutch (whether it even be a stock T2 clutch) because believe me, that NA one is going to slip. ask aaron cake about that.
Old 01-12-03, 10:22 AM
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First of all, your non-turbo ECU and/or AFM are not going to run the turbo engine correctly, and I'm not sure if an S-AFC will help much. The S-AFC will work well with a TII ECU, AFM, and wiring harness, but I'm not sure if it is worth the trouble given the low-priced EMS products on the market.

Hehehe, you aren't going to need a boost controller with that single exhaust, rather you are going to need to port the wastegate. Your problem isn't going to be lack of boost, it's going to be too much boost. Anyway, if you like the boost controller function, note that some EMS products have a boost control function built in, so don't go spending your money on an expensive boost controller until you decide on what you are going to do about the ECU.

On the fuel issue, you probably will not need larger injectors with your initial setup. If you get an aftermarket EMS, then you can run your injectors up to 80% all day long. Also, you can just up the fuel pressure a little in the way of a high-output fuel pump, high-flow filter, and fuel pressure regulator. This site has good info on TII mods:
http://fc3s-pro.com/sitemap.html

The non-turbo transmission seems to be able to take a little over 200bhp fairly well, but it depends on how you drive the car, of course. I have seen a 360bhp 13BT work just fine with an NA drivetrain, but then again I have seen only slightly modified 13B NA engines tear them up.

Microtech web sites:
Microtech - Injection Perfection
Microtech - Mazqwik
Microtech - WWR
Microtech - Chiptorque [/B][/QUOTE]

(Just in case you can't find the pricing pages):
http://www.injectionperfection.com/h...rice_list.html
http://www.chiptorque.com.au/105691.php

Currency converter:
http://finance.yahoo.com/m5?a=1&s=AUD&t=USD

See our Microtech subforum for more info:
https://www.rx7club.com/forum/forumd...s=&forumid=111
Old 01-12-03, 10:45 AM
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wow that looks really cool... i was just checkin out the functions.

do you think i could get one of these microtechs used tor under 600 bucks? it seems to be totally worth the money.

also, do you have any links to the functions of haltech? are there any differences?
Old 01-12-03, 10:56 AM
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Originally posted by jacobcartmill
expect your NA clutch, NA transmission, and possibly your NA rear end to take a **** in a couple thousand miles. (maybe sooner)
also, if you're running this bitch at 12 lbs, your na clutch is going to slip from about 5k to 8k rpms. that clutch is used to seeing like maybe 150hp at the wheels. now its gonna be seeing 220+ do yourself a favor and ATLEAST get a new clutch (whether it even be a stock T2 clutch) because believe me, that NA one is going to slip. ask aaron cake about that.
I was thinking that but forgot to put that in the post...Im looking at either a centerforce dual friction or an ACT 6 puck.
Old 01-12-03, 11:01 AM
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ok good, everything else should hold up for a while. the clutch is the only thing you really *need* to change when doing the swap.
Old 01-12-03, 11:03 AM
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HMM so it comes to around $700 for the microtec.....lets see ill save $350 on the S-AFC and another $100 or so on the TII ECU and AFM, plus the $240 for 2 720cc injectors and that comes out to make the Microtec less expensive....sounds good to me. Im just wondering how hard it will be to wire now....most likely i will have to do the swap and then wait till i get paid and get the EMS. As long as it will run good for like 2 weeks on the NA ecu and afm then tha will be long enough til i can get me a good ems (probably microtec) thanks guys!!!!!
Originally posted by Evil Aviator
First of all, your non-turbo ECU and/or AFM are not going to run the turbo engine correctly, and I'm not sure if an S-AFC will help much. The S-AFC will work well with a TII ECU, AFM, and wiring harness, but I'm not sure if it is worth the trouble given the low-priced EMS products on the market.

Hehehe, you aren't going to need a boost controller with that single exhaust, rather you are going to need to port the wastegate. Your problem isn't going to be lack of boost, it's going to be too much boost. Anyway, if you like the boost controller function, note that some EMS products have a boost control function built in, so don't go spending your money on an expensive boost controller until you decide on what you are going to do about the ECU.

On the fuel issue, you probably will not need larger injectors with your initial setup. If you get an aftermarket EMS, then you can run your injectors up to 80% all day long. Also, you can just up the fuel pressure a little in the way of a high-output fuel pump, high-flow filter, and fuel pressure regulator. This site has good info on TII mods:
http://fc3s-pro.com/sitemap.html

The non-turbo transmission seems to be able to take a little over 200bhp fairly well, but it depends on how you drive the car, of course. I have seen a 360bhp 13BT work just fine with an NA drivetrain, but then again I have seen only slightly modified 13B NA engines tear them up.

Microtech web sites:
Microtech - Injection Perfection
Microtech - Mazqwik
Microtech - WWR
Microtech - Chiptorque
(Just in case you can't find the pricing pages):
http://www.injectionperfection.com/h...rice_list.html
http://www.chiptorque.com.au/105691.php

Currency converter:
http://finance.yahoo.com/m5?a=1&s=AUD&t=USD

See our Microtech subforum for more info:
https://www.rx7club.com/forum/forumd...s=&forumid=111 [/B][/QUOTE]
Old 01-12-03, 12:03 PM
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Originally posted by jacobcartmill
do you think i could get one of these microtechs used tor under 600 bucks?
No, probably not. Those web sites are outside the US, so you would have to pay for shipping, and it may even be difficult to order from them if Microtec makes you order from a US source. It's always worth checking out, though.

Originally posted by jacobcartmill
also, do you have any links to the functions of haltech? are there any differences?
Much like there are several Microtech models, there are also several Haltech models. Generally, the Microtech models are less expensive and are not as robust as the Haltech models.
http://www.haltech.com.au/Products/ECUs/ecus.html

Before you guys get all excited, please note that an EMS is extremely difficult to program if you do not understand the physics of an internal comustion engine. While the installation isn't much more difficult than that of a complex stereo system, the tuning is best left to a professional (at least the initial tuning), which costs around $500 for basic tuning, and goes up to about $3,000 for race tuning. An S-AFC would be a little easier to tune.

Here is a write-up on how to install an EMS on an RX-7. It covers a Haltech EMS, but they are all pretty much the same to install. Most EMS web sites have a manual that you can download to see what is involved with installation and tuning.
http://www.hitman.hm/installation.htm

Originally posted by stracr85019
HMM so it comes to around $700 for the microtec.....lets see ill save $350 on the S-AFC and another $100 or so on the TII ECU and AFM, plus the $240 for 2 720cc injectors and that comes out to make the Microtec less expensive....sounds good to me.
The stock 550cc injectors are good for about 250bhp at 80% duty cycle and the stock fuel pressure. If you need more fuel than this, then you are going to need to upgrade the fuel system, regardless of which ECU you use. Also note that it is a good idea to keep an eye on the air/fuel ratio, as sometimes the math calculations don't quite work out due to minor problems in the fuel system, such as a poorly grounded or worn fuel pump, clogged lines/filters, dirty injectors, etc.

Other advantages of an aftermarket EMS include an Air/Fuel Ratio readout, Boost readout, Datalogging, Rev Limiter, Turbo Timer, and other functions, depending on the particular functions of the EMS. Also, an aftermarket EMS takes care of the flooding and 3800rpm hesitation problems, lets you toss the restrictive AFM, and negates the need of an FCD. The disadvantages of an EMS include problems with or inability to work with the emissions devices and 1989-on electrical OMP, and many do not have boost control.
Old 01-12-03, 02:38 PM
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i skimmed through that install page. doesnt look too difficult, but i'm sure its a different story when you go to start the car...
and i'm guessing that the timing is the determining factor on the ease and time of this install?
Old 01-12-03, 04:33 PM
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Originally posted by jacobcartmill
expect your NA clutch, NA transmission, and possibly your NA rear end to take a **** in a couple thousand miles. (maybe sooner)
I really wish people would stop spreading around this myth.

The funny thing is, that most people who say this have had no experience running high power levels on the NA drivetrain. It is a long stronger then people think. While it is not as strong as the TII drivetrain, it will stand up to some pretty potent engines...There have been people who have run 20Bs on the NA transmission...
Old 01-12-03, 06:43 PM
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Ok this is exactly what I am buying....
-S4 TII motor complete with manifolds turbo, ect.. everything on the NA-TII write up
-720cc secondaries
-walboro 255lph
-S-AFC
-Corksport Single cat back
-Corksport Downpipe
-FCD
-ACT 6 puck clutch
-A/F gauge (or EGT) and Boost gauge
There anything Im missing to make it run. No more performance parts for now. And That will get me in the 13's right?
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