4AGE 20V + E-manage Mini

Another customer comes into wanted to install E-manage to his 4AGE 20V,this time we installed new mini e-manage blue.Good thing is it comes with USB connection which is a lot faster and stable,also friendly with newer laptops.

 6 speed gearbox

 Final result.

4AGE 20V + Adaptronic e420d + Toda 264-264 cam

One of R.N.R Autosport customer have upgraded his machine.Previously it was stock 20v Blacktop with metal head gasket and adjustable cam pulley on exhaust,was run by Adaptronic e420d ecu with R.N.R Autosport  COP conversion kit.

The owner have upgraded his cam to Toda 264-264 9mm lift.Others remain untouched,even the piston is OEM 81mm. OEM Rotating internals have been balanced.

The blue graph is Toda Cam run with previous tune,the red graph is Toda Cam after tuning the ecu,the power drop above 8000rpm is due to cam settings,the owner will send the car to his mechanic to optimize the cam timing and hit the dyno again.The VVT is still retained in this setup.The gain is almost 9HP, i reckon it can get more than 160HP on this dyno with proper cam dialing setup.

Fuel is RON97 with Octane booster.

New Product : R.N.R Autosport 4AGE 20V Silvertop to Blacktop ECU conversion kit

We have new product for this month;for those who have problems with their 4AGE 20v Silvertop ECU (burned,unstable idle,etc),you now can change to a newer 4AGE 20v Blacktop ECU by using this kit without need to send your car for rewiring,it is fast,less hassle and reliable.No need to leave your car for days in workshops.Free yourself from the trouble of the Silvertop ECU (which prone to leaking the caps) and free yourself from the restrictive airflow sensor where you can run a velocity stack.

The kit comes with the PnP harness for the ecu,with PnP harness for the fuel pump relay(for ecu controlled fuel pump) and the connectors for the MAP sensor and Air Temp sensor.(MAP sensor and 20V Blacktop ecu sold separately) .

Please contact R.N.R Autosport at rnrautosport@gmail.com for pricing,we do ship to overseas.

Thanks you.

AE92 SE with 4AG 20V Blacktop + Emanage

 Another customer all the way from Penang,thanks for your trust to tune your car,engine relatively stock,with e-manage piggyback ecu.

The results.

Custom wiring harness for 4AG 20V with Adaptronic e420d

 This is custom made wiring harness for my brother 4AG 20V equipped KE70. This harness is fully shrinked wrap and designed to be fully plug and play,all connections to body harness is through connector,makes it easy to be removed for engine maintenance in the future should we need to take the engine out.

Ecu of choice is none other than the Adaptronic e420d,this ecu is well suited for the 4AG engine,being able to run sequential injection and ignition (COP conversion),closed loop fuel control,closed loop idle control,knock control,launch control,air conditioner control and a lot of other functions.And the biggest factor is its price, its lower than similarly spec ecu.Please contact R.N.R Autosport for more info.

Toyota AE86 4AG 20v + Adaptronic e420d ecu

A customer would like to replace the old 4AG 16v engine in his AE86 with a newer 4AG 20v,but as the 20v is from a front wheel drive Levin/Trueno,when it being fitted to rear wheel drive format,the distributor will hit the firewall,there are 3 solutions to this,which is knocking the firewall for the distributor to clear,make a distributor relocation kit or use a Standalone engine management system to convert the ignition system form distributor to wasted spark or direct fire (individual coils).

A better alternative is the third option which is using a standalone engine management system.R.N.R Autosport have suggested the owner to go for direct fire coil on plug ignition system.In this case the coil used is from Nissan SR20 S15 Silvia.ECU of choice is the Adaptronic e420d.This little ecu is packed of features for its relatively cheap price.

Coil harness fabrication

Here is the finished custom made harness,all wires are soldered and shrinked wrap the entire loom.

From another angle

 Fitted on the engine,the wiring literally hidden.

Another view

Another angle from top

 

Put the car up on the Dyno Dynamics Chassis Dynamometer

 

The result of the conversion.The engine is totally stock standard except for extractor,coil on plug converision and the custom made trumpets.A good result considering its a RWD car which has a higher transmission losses,not to mention this is tuned on RON 95 petrol.The fuel consumption is greatly decreased,more than 14km/L on highways (as reported by the owner). Ecu running flawlessly everytime,no matter cold or hot start.

Congrats to the owner,a rare classics,AE86 is a gem.This project is will not end here,the owner has a few more plans for his baby.So watch out this blog guys.Thanks.

Toyota Corolla SEG + 4AGE Silvertop + Blacktop ECU + E-manage

Hi,recently done a E-manage Ultimate installation and tuning on a 4AGE Silvertop 20v with Blacktop ecu. Engine is stock except for trumpets and exhaust adjustable cam pulley. Engine is not at its best performance due to some leaks and this car is on 16 inch wheels.

On Dyno

Results,the orange line is before tuning and the pink one is after tuning.Car goes much stronger and the fuel consumption is decreased.



AE92 + 4AG 20V Blacktop Wiring Conversion

Another project of marrying both stock wiring (AE92 with 2E carburetor) with 4AGE 20V Blacktop engine from AE111 Levin. The owner of this car does not want to install full AE111 4AG 20v wire harness (engine bay+instrument panel) because to retain the stock look of his car interior. Installing the full harness (engine bay+instrument panel harness) from the halfcut will make it more diffcult to graft into the stock wiring without mounting the AE111 dashboard,and mounting the dashboard will make the car look awkward. So the owner choose to leave the dashboard stock.

The stock 2E engine harness being stripped and separated,taking only necessary wires to be used onto the 20v engine.

4AG 20V wiring being stripped and labelled,what is not used is being cut and removed.

ECU during test start up,will be mounted under the dashboard.

Engine installed in the car and up and running. The wiring harness look totally stock factory item.

KE70 4AG 20V Engine dismantled

Few photos of the engine dismantled for rebuild.

4AGE 20V Blacktop + Haltech Platinum Sprint 500

Another Standalone Project for a customer driving a 4AGE 20 Valve Blacktop,this time the chosen engine management is Haltech Platinum Sprint 500.

 

This is whats included in the ECU package.For this project,a full harness install was opted,this is because the old wires is not in good condition and using whole new wiring have its advantages.

 The old wiring is being stripped,and the stock ecu wiring is being separated and pulled out.Only the needed connectors are being saved.On most FWD Toyotas,ecu wiring is bundle together with other wiring such as starter, altenator, and air conditioning, so there is a lot of wires need to be separated and tagged.

The new Haltech harness is being laid out on the stock wiring.

 

 Soldering on progress,all wires soldered and shrink wrapped for trouble free operation.

The finished wiring and installs.This engine run on wasted spark,with stock crank angle sensor still retained. However,the Sprint 500 have the ability to run on complete sequential ignition (4 individual coils) if the owner have enough budget. The engine is completely stock except for the extractor and trumpets.

First time starting is much easier with the VE tuning function on the new Platinum series. Finding base map is quick and idle is much more stable. The car is very much drivable after starting. This whole project takes only 3 nights from wiring to finished dyno tuning.(A total of 8 hours of work)

 The dyno result,almost 137whp but with a lot of torque, which is among the highest torque from stock Blacktop i've tuned. Now before you readers saying 'Why using Haltech only managed to get 137whp',honestly  i am also quite dissapointed with this result as i'm targeting at least 140whp,but since me and the owner never dyno the stock HP output before Haltech installation, we cannot judge this HP output is not good.There is a lot of significant factors that determines each engine output other than the ECU.

Firstly is the engine condition itself, how healthy is the internals, then the specs of the exhaust and other add on parts. 3rd is the fuel used,which in this case is RON95. Stand alone and tuner itself can't do magic without the aid of a good internals.What stand alone can do is optimize over the stock ECU. The only way to know how much improvement this Haltech installation gives is by letting the owner drive the car as he is the only one knows better how his car drives before.

A short test drive after dyno confirmed that a significant increase and power and response by the owner.He said his mid silencer is broken which might affect the HP output, however he's very satisfied with the outcome of the stand alone.Plus that launch rev limiter really excites him :-)

We will be back on the dyno for this project to see how much improvement with mildly ported and polished cylinder head with 0.8mm metal head gasket, new mid silencer and adjustable pulley on the exhaust cam, so stay tuned.

KE70 Restoration Part1

My KE70 restoration project finally started after 1 and a half month waiting for the workshop to clear.The car will be stripped and send to bodyshop for body repair.The body and chassis is in a very bad state as it is already 28 years old and have endured so much abuse.It has been driven to jungle,dragged and drifted.Rust is everywhere and the body have been repaired a few times.

Rusted

Peeled off paint and rusted

Drift abuse

Peeled off paint

Very bad peeled off paint

Drift abuse and peeled off paint

The engine have been drag and drifted,driven like mad (8000rpm shifting most of the time), this Silvertop 20V (with Blacktop ECU) it is still going,allthough not as good as other 20V in term of performance..its been leaking here and there now and consume engine oil. It will be rebuild soon,still thinking what engine management i want to use.The engine bay will be painted too,and will be wire tucked.

Engine is out,wiring and all accesories next.

Finally after 7 years inside the engine bay and never been overhauled since..for the first time it is out of the car! Look at that gearbox covered with mud,a testament to drifting.

Hopefully this project will give new life to the KE70,stay tuned for updates!

Corolla SEG AE101 Blacktop 20V Auto + E-manage tuning

A friend introduced me to a toyota seg owner who wants to tune his e-manage.This is my first time dyno tune an auto 20v,it is quite difficult as it need delicate control of the throttle in order to maintain the car in particular gear,hence it is hard to get consistency on every runs.

None the less,the base run made is quite good and it is very hard for me to squeeze the every bit of extra power and torque.I got it after almost 30 runs,but there is a strange torque dip at 3500 up to 4500,i spend another 47 runs just to tuneout the dip but after using all tricks up my sleeve,still couldnt get it to better.I guessing this is something that can only be resolved on the street,as this car is auto transmission,and dyno loading can't simulate some of the load the gearbox experienced on the actual road driving conditions.

The AFR lean out just at that moment,i'm thinking it caused by vvt switching on.Something we couldnt see on dyno,a further street tuning should resolve the issue.However,there is an increase on torque right after 4500 up all the way to redline,is much flatter.Peak HP increase is quite minimal and happens a bit later than previous,but it still climbing up until 7600rpm,almost at the rev cut and shift point for the autobox.

I want to review this back and find ways to improve the torque curve and AFR lean out issue at low rpm,will be fine tuning on the road.But anyway,owner now happy with current performance.

Toyota SEG AE111 Blacktop 20v + E-manage Tuning #2

Hi, another 20V Blacktop + E-manage tuning

Engine is stock Blacktop 20V except for HKS 4-2-1 extractor. Rear muffler is stock Levin 20V dual muffler,so its quite restrictive.

The STOCK base reading is on the BLUE curve,the TUNED reading is the RED curve.

Spend almost an hour extracting as much power from the stock ecu,but truely,stock Toyota ecu is very good in keeping their tune the way it is,the is a point where what ever changes made will not yield any significant result. So best today is 127.8 WHP,but with a flat torque curve.This is good for townriding as the owner intention.

He did ask to tune on the cruising mode for more fuel economy,but there is no point tuning the engine in cruise mode bacause the AFR will be always in closed loop feedback, and as Toyota being so superb in keeping their closed loop AFR in control, any changes made will be useless, the ecu will always learns back and keep the AFR within 14.5-15 on cruising. Further more, changes in cruising will cause the Long Term Fuel Trim to be affected and being applied to the overall fuel calculations the next time owner drive his car, and the e-manage tuning will be masked by this, leaving the e-manage tuning 'useless'.

Piggyback have its limit and best for Toyota engine is still Stand alone,unless some company manage to hack the stock ecu and do a re-flash.