gsracer

check out that turbo, see what it says on the compressor housing. I'm betting on a standard to4b hybrid.

3vze

So im guessing by lookin at your posts you dont think that 267 is real ? its uncorrected I believe. Also we may be at a different elevation than most of you. I can tell you its a stock turbo. I can also tell you its mildly ported if that makes a difference. But what do I know im just an exhaust leak

Ni5mo180SX

Numbers sound perfectly fine with me.

As for stand alone, id consider Haltech or Microtech. If you really want to get into it, consider modding the PFC or TEC3.

3vze

Ni5mo180SX, Jeff and the super friends network have a TEC II system on a dedicated racecar but dont want that much work for this RX-7 they wanted a PnP with some dial in time. Have any of you used the EFI PMS system or the Wolf systems ?

Evil Aviator

There currently isn't any PNP EMS offered for the 2Gen RX-7. To be honest, there isn't a PNP EMS offered for the 3Gen RX-7, but some of the EMS sellers misuse the PNP term to describe something that is actually more properly termed Plug & Tune. I have not seen anything other than piggyback chips or re-programmed chips that are truly PNP.

Yeah, I don't know why Electromotove insists on that degree wheel concept. It's a lot of work and added expense that attempts to solve a problem that doesn't exist. One of my local race shops that has had a number of cars in the Daytona 24hr race was unable to get the TEC to keep its ignition settings, and they ended up returning the product. If they can't get it to work, then Joe Public is in real trouble.

I like the new Wolf. It's the way to go if you want good injector resolution but don't care much about datalogging. The Wolf software is really nice, and you can instantly re-configure the map resolution to allow fast tuning in a coarser settings, or increase the resolution for more accurate tuning. The new Microtech LT-8 looks like a good budget EMS that now also works on the street as well as the drag strip, and the new Haltech E11 is probably worth the extra expense if you want to set your timing split by both rpm and load. As usual, I recommend using the EMS that your tuner likes, as they are all pretty good products. Most tuners sell a package deal that includes the EMS, installation, and tuning for a good price.

I don't know much about the EFI PMS, other than many forum members have complained that PFS doesn't offer any product support to second-hand buyers.

jreynish

iTrader: (2)

I agree at very least there must be a upgraded compressor wheel in there. However none the less. Just from my personal experice I like the Microtech LT-8, it is relatively user freindly unlike the haltech software i have seen. However Right now I think that your fuel supply is the issue to be addressed. I would take care of your fuel supply before looking into the stand alone.. cause with those numbers and stock fuel system you are looking for a BANG!!! situation... congrats!

ronny76

I`m using a Megasquirt efi on my 90`TII, and it works very well.The Megasquirt is a DIY efi which mainly is made for fuel control,but with simple mods. it will handle the ignition part too.
All this for only $120.
There are quite a few rotaries runing on it.
Check it out on:
http://autos.groups.yahoo.com/group/megasquirt
http://www.bgsoflex.com/megasquirt.html

Jeff Butler

Thanks for all the great feedback guys, you have been a great help. Based on what we have learned, we have parked the car until the fuel pump is replaced and the waste gate is ported to stop the overboost in anything over 2nd gear.

We (the super friends network??) plan to limit the boost to .7 bar and (hopefully) obtain an AFR that's safe (there is an adjustment on the FCON) while the suspension and brake upgrades get taken of. The car is fast enough for now and we would like to get some track time in and get the car sorted out before going after more power, as long as it's safe.


Evil Aviator's recomendation about using what are local tuner likes sounds like a good plan to me. The Wolf or the new Haltech are the choices that we are considering, although the jury is still out.

As far as the Turbo and power level are conserned:
- it's the stock jspec turbo as far as we know.
- the engine has stage 2 porting, a LARGE much less restrictive intercooler and full turbo back exhaust. Unless the turbo won't flow this much air, I don't see why this power level is not realistic. Yes, the fuel pump is a limiting factor as 1st & 2nd gear are the only usable gears before the boost creeps over .7 bar and it's starts to go lean. It seems like the 267 hp is not sustainable, just flash hp in the lower gears.

$150FC

you are pushing nearly 320hp at the crank and at .7 bar (10.3 psi) on the stock turbo you should not be putting down that much power.

Hell, that means after you get your fuel sorted out you'd be making probably 300rwhp on the stock turbo and that is, i believe, not doable.

Jeff Butler

Why? Just a question.