Another little update. T-vis definitely does not open. I do not know why. Tried driving with the vacuum hose unplugged from the t-vis diaphragm. Low end felt a bit less responsive, not too bad honestly, but top end felt so much better. A very noticeable difference. Will do more testing here to figur...

So I went to the garage today to take a better look. T-vis is not working. Reved the car up beyong 4000, there is zero movement. All my vacuum lines are connected properly. The little diapraghm on the throttle body is also not moving and not making contact with the little bolt. Its dead? I need a ne...

Thanks for the responses guys! If the engine ran better overall in cold weather, and also runs OK when cold in the "warmish" temperatures, might not be fuel pump as cold engines/cold weather typically need MORE fuel so the pump would act up then. Have you looked at the ISC valve to make su...

Car was stalling occassionally a month or so ago. I found a bad ground. The bolt where the battery cables ground on the chassis was not completely bolted down. So I bolted it down and added another ground. That was a couple of days ago and the tempreature was till pretty cold. Car did not stall anym...

About two years ago I started with a very similar build in mind. My engine is a later model bigport (redtop) and its in a aw11 and this being my first engine build ever. My build was pretty much based around the tomei poncams. I didn't really know why, they just sounded good. I think the advertising...

How do valve seats even get like this? Before I rebuilt I know my engine was sitting in the POs shed for 2 years without being started..., but when I took it apart and looked at the head the seats weren't like this at all. Was this caused a blown HG? I'm just curious.

That sounds decent. Especially with spirited driving! I did a build for economy, 4AGE awhile back. My final combination was 10.7 comp(our mid grade fuel, 89) with the intake cam being a WEB camshaft grind 294, 8.2mm lift and 246* ad/220 @ .050" with an early 4AGE OEM cam on the exhaust. Actual...

So I did a little road trip recently and made a video out of it: https://www.youtube.com/watch?v=tqu9_Ae2Cm8 The video is long, but what will probably be most interesting to this forum is that I used the opportunity to calculate the MPG of my mildly modded 4AGE: Here's what I have on the engine: Cam...

Alex170984 wrote:Hi,

Are you sure that's a small port head? There is no oil drain on the head on the LHS...

Not a smallport, someone asked that by mistake I believe. This is a 16v bigport.

A litle update on the distributors. I ordered one from the U.K. from Neil Jones and here's what I got: https://s28.postimg.org/thcex1k0p/DSC_9952.jpg Totally incompatible with mine right? If my research is right this is a map dizzy and has just one connector that doesn't fit any of mine. Here is my ...

I just re-read this thread. Why did you put exhaust manifold gaskets on the exhaust side, I didn't see exhaust manifold gaskets on your other porting pics. I assume you matched the ports to the gasket in this case since these are not-so-mild cams and there will be more power, am I right?

That's good news, glad I bought adjustable ones

Let me try to wrap my head around this, to compensate for the slight retardation I get at the crank I should adjust the cam pulleys anti-clockwise to advance it?

Thank you jondee86 for all your responses, you are really helping me out here!

So I played around with it some more. Injectors are 2 ohm, resistor box in place. I am keeping it there obviously. Distributor is 4 wire. Don't know if the ecu wants 3 or 4 wire. I also re-did my timing belt. Here's a weird thing that happens. I align the cam and crank marks to tdc positions, make s...

https://www.youtube.com/watch?v=t3RCP14rBxY Go to 7:59 This is a video I made when I was doing a mild port job on the head. Definitely a big port. I took apart and overhauled this entire engine. It is a bigport, with 9.3 comp pistons, the big journal crankshaft and the fat conrods. It has a 7rib blo...

The engine is a big port definitely, but its from an AE92. At least that's what toyodiy says. I know AE92 came both with the smallport and bigport in it?

Holy crap you might be onto something important there. I totally forgot about the injectors! Thank you! I think they are corolla injectors as well, since the rebuild kit i ordred from them came with slightly diferent looking parts. it works, but works a bit differently. I ordered an MR2 kit of cours...

https://s27.postimg.org/ptt0r2y9b/DSC_8427.jpg Here is a shot of my two catcams exhaust cams. As you can see the lobes are almost exactly as in your image. I compared my two exhaust catcams against my stock inlet cam, and they have the lobes in the same places, its just that the lobes are slightly ...

However, it might be worth checking to see if the ECU requires the pickups wired individually (NE, G2, G, G1) or if they can have a common ground (G1, NE, G-). If the plug has been changed from 3-wire to 4-wire there could be some mystery ? I will double check but I think that the corolla distribut...

Thanks for the response jondee86! My car is a MR2, stupid of me not to mention that. Timing against the timing cover doesn't work because its impossible to see it in an MR2. I have made marks and bought the needle that is used for timing in an MR2, but it shows the same timing as the cam gear, aroun...

No, AFM is good its the original and goes with the original ECU I have.
AE92 and AW11 dizzy definitely not the same. Check toyodiy. At least that's the case on european vechicles.

The saga (read nightmare) continues. I finally managed to figure the main culprit of my poor engine performance. My timing belt skipped a tooth. Why? Because of the stupid spring that tensions the belt tensioner pulley. My belt skips when I set it up as per BGB relying on the spring. So what I did i...

After spending a few weeks trying to figure out why my engine is low on power and why my crank pulley seems like its bouncing when I point a timing light at, and why I have a bit of a misfire, and maybe a bit of pinging and just can't get the car running right I think I am finally onto something. I ...

Thanks for the tip s24a, I will take a peek at the ECU, although I don't suspect it yet. I think i actually finally figured out the culprit for the poor performance, it is the TPS after all. The last time I managed to set it up and do the measurements and they were all within spec with the right thi...

A bit of an update. Thanks for the torque and power curves. Right now that is a distant dream for me. Car is definitely slow. Took the car to have some rust removed and parts repainted. On the way back had a little race against my daily driver, A 107 bhp 1.6 16v suzuki sx-4 crossover type car with m...

But magnets stick to the head. Doesn't that mean the porting residue is magnetic too. Its not pure aluminium but some alloy right? I did not wipe the bores with anything at all. Just put a bit of assembly lube on them. Didn't think they need cleaning? I cleaned everything else like a million times b...

So here's a bit of an update: Opened up the cam covers, checked the shims, all are nicely within spec. I expected that, but needed to make sure. I will try and swap out the injectors to see if it changes the sound next. Other than that: Car has done around 150 miles so far. I have changed the oil 3 ...

I bought the same ones you can see on ebay. Didn't coat them. Even balanced them by drilling underside of crown, very shallow very conservative drillings. If you're bored you can watch the balancing video: https://www.youtube.com/watch?v=_YMMQnBdVW4 Installed, fired up engine. 150 miles so far. Ever...

I replaced the tensioner bearing with a brand new one and tightened the screw to the same Nm as per BGB. Don't let it fool you, its not this loud, I just got a directional mic really close to the engine to isolate the sound. It reality the sound is less prominent. Tho I can hear it inside the cabin ...

Here's a little sound recording I made. This is with a lapel mic to eliminate the sound of the exhaust. https://www.youtube.com/watch?v=0j8jdFYUico&feature=youtu.be How does it sound to you? I went at it with a stetoscope too, and my inexperienced ears tell me that its not the shims. When I put ...

https://www.youtube.com/watch?v=lGSdDaB3X_c

Here it is. As a conclusion to this old thread. Sorry to revive it but I think this is an adequate way of putting it to bed