Red top in the ae86

[banpei]

(04-26-2022 12:25 PM)gh0st Wrote:  I know for a fact my engine has 124 hp. I read the ae92 redtop has 124 hp. A bluetop has 112 hp.

Don't believe everything what's written on Wikipedia: that's not written by professionals.
The truth is that it really differs per car and per country.
It's true an AE86 bluetop outputs 112hp, but it does so in Californian spec including catalytic converter.
In Japan according to Toyota the AE86 bluetop outputs 130ps (which is 128hp). It did this with a catalytic converter but I highly doubt any factory new AE86 left the factory with 128hp. Japan was in HP wars back in the early 1980s and dynos have proved that they actually output around 120hp.
In Europe the output of the AE86 bluetop was rated at 124hp without catalytic converter and 116hp with catalytic converter.
In Switzerland the output of the AE86 bluetop was rated at 120hp without catalytic converter and 115hp with catalytic coverter.
However when you drive the cars, you won't find a lot of difference in power between all these engines. It's only 10% difference between the weakest and strongest engines.

The 4A-GE redtop is a very very different engine than the bluetop. And yes there were bluetops with red writing on them but that doesn't make them a redtop. It would have been much easier if they were named either bigport and smallport.
This is a redtop smallport 4A-GE:

As you can see it has a very different intake which is ribbed on top. This intake is a much simpler one due to the absence of the TVIS and it has slightly shorter intake runners.

From the side of the cylinderhead you can see why they are called smallport and bigport: