Sam44

This is clean, and about to be cleaner. Fresh paint, you really can't beat it.

Does the car run.

It would be good to get a data sharing section up. I'm reluctant to put data logs and data logged/calculated onto the build thread because it's not most people's cup of tea. But for the ones ho are interested it could transform the way these cars are seen as well as making 200hp+ reliable, easy reachable 4efe't, 250hp none forged 4efte At present if I mention the 4efte to people in the JDM know. They look and laff and say wait for it to blow up. Threw Popular you tube starlet tunning channels I fully understand why this view is taken (poor little cars). As well as 100hp n/a.

Haha, yes. I was waiting for you to bring the piggy back up. Very very true a 1meter pipe to this sensor makes me shudder inside. As well as all the inline t offs I see on people's builds going to all sort of devices even multiple gagets. I had my fingures crossed. I was thinking come on lads. ho will get to the offset. Especially as alot of piggy backs do use there map sensor for engine loading. I knew you would hit it on the head. You can see every system no matter how small. can be tunned and sharpend up. Every little thing. This is a 30 year old production line car build to be cheap and soft and friendly for your gran to drive to the shop. The design engineers understand every system and whilst testing will tweak everything for the targeted customer group. Then we get hold of them and turn them on there heads. Find them errors (some time purposely introduced for friendlyness) and you will find power and efficiency. Thanks you for the information. I truly love good digestable info. It's silly o clock in the morning were I am, and I find my self checking the starlet owners club haha. Im really enjoying this.

Because I'm not running 4x egt sensors on each cylinder I'm using the hottest cylinder and the spark plug to work out temperature coefficient on each cylinder. I'm not with the results at the minute.

Thanks very much. I've been told about this and yourself being very experienced on these. I'm literally in the process of designing the breather system and your name keeps coming up. FATE has happened

Yep this also damps/delays the map signal. (Map sensor filter) and the longer and wider id of the connecting pipe. This becomes a volume of stored pressure, so size (length and diameter) are a big factor here. The aim is to read direct manifold pressure. I was referring to the fuel injection 4 cylinder comment with the picture above. To answer your thoughts on the antisurge fuel rail valve. Fuel pressure pulses can be seen on a electrical fuel pressure sensor placed in the rail. Made even worse when the low output alternator when placed under high load. Brad ho has the fantastic MK1 GT build on this site has told me about a bolt on higher amp output alternator option off a toyota land cruiser. This will load the engine slightly more. As soon as I installed to dual pump system the fueling of the vehicle went instantly rich??!!. How is this explained. This also reduced my 372cc injector duty cycle at the pre set hp, increasing the injectors potential hp limit. Pinpointing what the factory valve is for. We also replaced or should I say added a high amp relay and wiring (earth return to battery) to the twin fuel pump system. This relay is operated off the standard pump wiring. We have placed 1 pump on the right side and 1 pump on the left side of the fuel tank to limit in tank surge affects whilst cornering, using none return valves in each pump to filter line (pump side of the joining Y pipe. This is to provide a fail safe should 1 pump run dry or fail. We have also fitted a higher capacity battery in the boot (the factory battery capacity is very low. The system has the desired affect and cleared all and any pressure problems. A side note to the UK starlet owners is the UK ep91 fuel pump is again different than the JDM turbo unit. A great upgrade for better power and a must when boosting is to replace the pump. The kamso fuel pump is a bargain and from my experience and from what information I can find online about it. It's a very good pump possible made by innovative motor sport as a cheap option. The above mentioned factory anti surge valve was first introduced on the higher hp 5e engines that ran the same pump as the 4efe starlet. This was my first clue as to why the valve was there.

Any updates? I'm just here to borrow a picture from you. As well as see how you are doing.

The difference is anuff for a colder spark plug to be run in cylinder 1, compared to the rest. With this engine being a front facing exhaust manifold design, I'm getting the egt sensor as close to the exhaust head outlet as possible to get a very accurate cylinder reading. These are a thin mild steel manifold.

Yeh the corrola manifold is a great bit of kit, and definitely a fix for 1 of the main engine/cylinder power balance issues. Another interesting issues is the low kv output of the standard internal ignition coil, using uneven length leads this affects flame propergation and cylinder timing, especially when boost pressure is introduced. As you have mentioned if a pipe is used on the map sensor it dampens/delays the signal. This is the same on all manifolds and the longer the pipe the more this effect. if you then introduced t joints and things like piggy back ECU or bov or gauges things get very interesting and now we can see turbulence in the map signal. He might of had a underline issue like a leaking valve in the head it sounds to me (back pressure waves). It's not being worried about these things, more I'm using sensors and logs to find the errors and pinpoint them. This ultimately brings efficiency and reliability as well as being able to spot potential problems as we up the power levels. There are fuel surges in the rail and line but the dual pump system had eliminated these. I'm currently running a return to the tank system with a under chassis fuel cooler on the return line to help remove and reduce injector temps as well as charge temps, so a fuel rail like what you have suggested would require me to redesign the full system. I'll put up a picture of the Toyota fix using a antisurge check valve on the delivery side of the rail. That was introduced on all later e series engines across the range. In the picture notice the additional valve on the delivery pipe/side of the fuel rail. This is a inline check valve to maintain rail pressure and reduce pressure surges, a Toyota factory item. Look at the real length of this map sensor pipe above, it literally creates its own plenium chamber (it create a pressure delay compared to the manifold pressure). This gives a loss in throttle response and delay in the map lookup/reference tables. Lost hp. Another very good basic mod along side this is to use a aftermarket engine earthing as well as placing an additional earthing line to the vehicles bulk head, this is were all the in vehicle earth's run to (return to battery). It's important to place a earth line to the cylinder head for the sparkplug (return to battery) and one on the inlet manifold this is were you will find the engine sensor earthing bank (return to battery). This sharpens up the main fueling sensors inlet map/temperature sensor to an impressive point.

Yeh that's what I'm getting I've got a set of 5ehfe cams here off the acis manifold model. I might be wrong but was it yourself that designed a inclosed engine breather system using 3x check valves on a catch can.

It's mainly because cylinder 1 runs the hottest. the inlet design (position of cylinder 1 in relation to the throttle), and fuel rail. with cylinder 1 also the last injector on the rail. There's a possible link as to why this cylinder runs the hottest. Also with it running the hottest im foucing onit. Using cast pistons this cylinder is the 1 to watch (expansion in the bore)

Nice the later corrola inlet manifold also really affects low-end rpm torque and spool. I'm thinking a slightly different setup for the short courses. Tubular inlet and 4efe cam?? Could be a kick ass combo. Easy swapin.

These are old pictures I'm just sorting threw. They are piling up on me. The bay and car look totally different now. (Tidy & clean). Yeh I'm rooting out all them errors. Like fuel burning in the exhaust giving false O2 readings and increasing egt and cylinder temps (overfueling) Also plotting egt against turbo spool up. A very handy tip is to also plot it against spark kv duration and dwell gives a great picture of cylinder temps and pressure. Again for overfueling !!! Safety as thy say. Even the old factory fuel filter is still in this picture. To answer the question on the map sensor. No .the throttle does become very responsive and can seem jerky. The only impact was the vibrations from the engine that impacted the signal. By placing it closer to the throttle body does affect the standard fueling map by increasing its base reference (more vacume present at cylinder 1 end of the manifold)

Thanks. Don't rush these 4efe with selective mods can be very impressive. And reach 1.6ltr power levels quite easily. I've got lots of old photos here I'm just working threw new to get up on the build thread

Older turbo kit that came with the car. (Just alittle squabby) against new kit setup This was as all the sensors was being positioned and wiring installed. 2x egt. Intake temp repositioned. 2x nock monitoring sensors. Wide band 02 Repositioned original O2 sensor. Repositioned map sensor close to throttle to achieve a 1 to throttle against map response. Pictures to follow Fuel pressure sensor. Low coolant level warning sensor. Battery relocation Twin fuel pump relay setup and wiring.

Nice build do you know about the difference between the 4efe and 4efte inlet cam??. Keep the great work coming watching with great interest. The higher rpm torque the 4efte and early power 4efe gen1 can produce is really incredible for a 1.3ltr engine. Thy did use a smaller throttle body I have 1 here. This was to access and control low rpm inlet gas speeds, allowing the power manifold reach its desired power level. I'm quite handy at reading Dyno graphs if you guys ever require another opinion.

Very much appreciated. I was going to get it repainted BMW sunset orange but I think I will get this 1 wrapped to have some track fun, and a 5e build I'm doing painted sunset orange.

TRD the centre of Japan's racing hart. The same stereo as me. These do clean up well. Keep them updates coming

Great to see some of these drivers/pilots reaching new highs after struggling in F1.

Just found your build now. Nice start and colour. Talk us threw your plans, have a good look threw the owners builds there are some exceptional example's. What model is this.

Welcome along there does seem to be quite afew northwest owners active, but these are older lads with accomplished skills, from what I can see probably with young family's and not alot of time on there hands. Get a build thread going.

The emb, unichip or aem is a good ECU for the targeted power levels. The software is ready available for emb and aem units. The emb is getting a bit data now. Are you mapping it yourself?. I've been told tunning developments are one of the best around and are familiar with the emb unit.

Yeh it was a let down. I can't even imagine having to navigate that course in them conditions.

Thanks I'm looking for a set now.