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I totally agree with you. I already spent the money so I will use them just in case in the future I want to put a truck, Turbo and rev 9000 RPM . The 4efe rev limiter as a natural aspirated engine is at 7k I guess. Maybe 6500 rpm. I honestly never pushed that engine to the limiter but I do...

Could you please explain why? The 4efte head is identical to the 4efe. The only difference is the valve springs. I already bought the uprated springs, but as for the rods (Maxpeeding rods) I would like to be sure that an aftermarket part will gain safety and stability to the engine instead of...

This is an interesting question to those who have done the valve upgrade. I personally think that if you don’t rev further 7000 and 500 rpm you don’t need to upgrade them. But I did buy the uprated valve kit from America even if I don’t think I will put a big tirbo and rathe higher than 7500...

Sorry for the late reply. Now that you explained your situation, I can tell you the fastest way is to run two wires from the front of the engine all the way to the ECU. One will go to the 12 V continuous signal and the other one (ground) to a switch. It will be very simple to make the solenoid...

Wiring solenoid VSV1 from ECU pin 11 (switch) ground signal BC (Boost Control from ECU pin 20 (solenoid) ground signal You need to go in the engine bay to find the 2 wires that come from the cabin. Test the signal between it and pin 20 on the first ecu loom connector. One wire has a continuous...

Hello. After all the work, I have done to put the wiring back with the solenoid and the ECU as it was when it was stock it wasn’t working. The wiring was going out from the ECU to the solenoid properly and it was grounded on the engine properly, but it wasn’t working. On the activation side...

I think the OEM caps are sturdy enough to manage 300 bhp. Let me know what I think that the OEM cops are sturdy enough to manage 300 bhp.let me know what you decide.

Interesting. We always think we can upgrade an engine easily, but we always have a thought thought in the back of our heads that the engine came from a factory where everything (usually) is calculated and properly done. At least it was until the year 2000

I will figure it out when I go to the shop with the pistons and the rods. I still have to buy.ARP headbolts and ACL bearings. As the block will be scammed 0.1 mm and probably the head aa well, what’s your idea about the headgasket thikness? My current set up had only the head scammed 0.2 mm and...

I was about to tell him that you told me this story a few months ago. My engine block is still at the shop because I had to slow down for work and other expenses. I still have to bring him the Pistons and the rods. The guys from. Camp Doga in Australia told me that I will have to skim the block...

Hey sorry I missed it. Yes I will def get the crank checked and the cams cleaned. I’ll let the shop take care pf the head assembly with the new valve springs. I will assemble the block. Can’t wait!

Thank you for the effort! My concern os both if the parts are compatible and if ot would work on a FHD as my Corolla. BTW my Starlet steering pump started to leak on the internal side (right side). Could you help me find one? I couldn’t find any. Also the Starlet AC compressor is leaking from...

The good thing about the Mazda Miata head is that is has head studs as a default setup. There os a engine forged assembly on youtube about it. The engine is very similar to the 4efe/fte

Thank you very much. I will show him these pics.

Excellent point. We don’t want to destroy our gearbox. To be honest, I don’t think that c52/C56 gearbox can handle comfortably more than 250 hp. They do, but they don’t last long. They are impossible to find…

Hi mate. Do you suggest using ARP 10.5 mm head studs or keeping head bolts? My machine shop doesn’t feel comfortable drilling the space for the head nuts between valves.

The engine block and head is at the machine shop since December waiting for the Pistons. I finally received the pistons, and I also bought the optated springs with titanium retainers from the US. One piece at a time as every of these parts is very expensive. The next step will be to buy ACL...

Great news! !

Thank you

I was thinking about Hi Low boost the reason why the ECU doesn’t ground the solenoid. As we do not have a diagnostic to see the parameters. It might be that in the conditions where the whatever map sensor or temperature isn’t. In the nominal parameters, the ECU decides not to switch to.HI boost...