New Cat

[mhamrick]

Hey I am following forum request and introducing myself. I bought a Emanage Blue to use on my 86 MR2 that I am swapping a 4AGZE longblock into and turboing with a T28.

I did have a MegaSquirt and sold it too go with the Emanage as I liked it simpler setup. I have also bought a Injector harness and a Ignition Harness. I also got the tuning cable.I have $170 dollars in it so far so I am happy.

I do have some questions. I am from the USA and here the 86 MR2 came with the AFM which suck. I did like the fact the MS came with a MAP sensor as I do want to get around the AFM. I have another plan in the works that will allow me to remove the AFM but if for some reason it does not work can you use the MAP sensor that Greddy Sales with Emanage and remove the AFM?

Anybody with any suggestions I am open too them. I will list all the specifics on the build.

Early 8.0:1 CR 4AGZE longblock
Nissan 50 trim T28 from a GTR
Greddy Emanage Blue with Injector and Ignition Harness
2.5" Aluminum IC plumbing
2.5" Exhaust plumbing
Free Flow cat and muffler
365cc GZE Injectors and 450cc DSM Blaktop Injectors incase the 365's are not enough
Innovative LC-1 wideband
DSM 1st GEN IC
remote mount oi filter
K&N air filter
Stainless T3 adapted to T28 turbo manifold
Internal wastegate with a Manual Boost Controller

I am sure there are some other things I am missing but this should give you guys a good idea. I am looking for a quick spool and a decent top end. I heard the T28 would be the best match as this is strictly a street car. Maybe some weekend track events. It is going into a 86 MR2 Hardtop with appropriate suspension mods (Intrax springs, Tokico Blue, Prothane Suspension bushings, Ceramic pad, 87+ larger calipers and drilled rotors, Stainless lines, and soon to be ST sway bar on the front). I am looking for 180-200hp at 10psi but plan on tuning it for 14psi. Should make an interesting car.

Thanks

[Dzaster]

Welcome. I have not done it personally, but I am pretty sure that you can use the greddy MAP to tune your off-boost, but not sure how down low off boost(meaning closer to idle). The Greddy volt to psi chart suggests that it is only capable of down to -14.7psi reading @ 5v.

However, not sure if not having the AFM would throw a cell or any thing else that might be more essential to driveability. I've heard of a 4efte(Starlet GT) ECU being used on a 4agte. That might be a bit of work.

The best thing would probably be to keep your AFM, preturbo of course, and have the EMB clamp the signal that is being sent to the ECU. However, if its a matter of the AFM being resitrictive, and just want to remove than that I can't say.

[CG10DET]

the e-manage is a piggy back and works by manipulating signals sent to and from the standard ecu. it's very difficult to correctly remove fuel via e-manage but it is straight forward to add it via additional injection.

However, as it's a piggy back, your standard ECU will always need the standard sensor to operate, the greddy MAP sensor is just there to add some additional fuelling when required.

[Accord2nrz]

welcome! what do you mean by AFM?

[mhamrick]

AFM is a Air Flow Meter. Basically it is a device that has flapper in it and the flapper swings with the more air that flows through it. It sends a 0-5 volt signal to the ECU that the ECU converts into a fuel calculation. It is junky way to do it and MAP sensor is far better but here in the US the AFM setup was the only way to get the 4AGE to meet or stringent EPA regulations (AKA smog).

I am actually going to use a different ECU that utilizes a MAP sensor but I bought the Emanage to fine tune the setup. My turbo comes today.

Thanks for the warm welcome.

[Dzaster]

I think I've heard of the 4efte (Toyota Starlet) ECU being used on 4agte.

[Accord2nrz]

ok Airflow meter is what I thought. And yes you can convert an AFM/MAF system to MAP. How I dunno. It's being alot on new tiburons for turbocharging and such.

Your other option is get a maf that can read it or look into something like a MAF extender and wire that into your system to extend its range for reading.