Max Power NA 7afe ????, Dyno Charts Posted Options

[94celicadude]

Hey all,
I am currently building up my 7afe, i have bought a separate head and have already had new valve guides installed, its been cleaned and i have brand new toyota valves, exhaust and intake, i have had the intake ones machined to have more of the performance "penny on a stick" figure, i will post pics soon but for now here is an example Valves.

I am also going to have the Extrude Hone process ( Extrude Hone ) done to the entire head. The current 7afe in my car has a custom 4-1 headers (Headers), full exhaust, intake, clutch, lightweight flywheel, Apexi S-AFC II, bumped timing to about 14 degrees static timing. If i can find a used GT throttle body i will try to make it work, they seem to be fairly similar. Its been tuned and it has over 225k miles on the original engine. The gear box has been rebuild to brand new, and at last dyno the car was putting just about exactly 100 WHP on a 95 F day.

So i figure its already a healthy working little motor. To make this short, i was wondering who has had the highest NA horsepower out of a 7-afe . I am hoping to be able to build my motor to about 120-130 WHP, that would be ideal but im not sure exactly if i will achieve that goal. The bottom end is going to get first O.S. pistons, the head will be decked for a slightly higher compression ratio, and the entire engine will be blue printed. Then the entire crank assembly will be dynamically balanced with the flywheel and all the accessories on either end of it. Then it will all be put back together and have another tuning session on the dyno.

Now i know that it seems like a lot of money to do everything i am, which it is for only 130 WHP, but im looking to make this a great motor for auto-x. And if i have 200 WHP then ill just create a smoke show, so thats why im not just swapping in something else.

**CLIFF NOTES**

Who has the highest NA power 7afe with dyno numbers to prove it?

This post has been edited by 94celicadude: May 9, 2008 - 5:27 PM

[94celicadude]

Well,

i do not mean to bring this thread back from the dead, but i have gotten a lot of progress done on my 7AFE build. The motor was pulled last week and torn apart to the last nut and bolt. I have few pics but its hard to take pics with dirty hands. I have had the cylinder head ready for several weeks now, all i needed was to pull the motor and do the bottom end.

so as far as the motor goes here is a lis of what will have been done to it:

Top End:

-Head was decked
-New Valve Guides
-New Valves on both intake and exhaust
-Intake Valves have been machined for increased flow
-3-angle valve job
-Cylinder head had Extrude Hone process performed on it
-Combustion chambers were balanced and polished and are within .05 mL of each other
-Cams were shimmed for proper clearances
-Intake Manifold was dipped and cleaned and had a "casting wart" removed from cylinder #4 runner
-Custom Fender Well CAI system w/ K&N

Bottom End:

-Bored .2 over to fit first over-size pistons for slightly higher CR
-New Pistons, rings and appropriate hardware
-New main bearing and rod bearings
-Rod have been shot peened
-Entire rotating assembly has been dynamically balanced (Crank pulley, timing gear, crankshaft, flywheel, pressure plate)
-Block has been decked
-Lightweight flywheel (9lbs) has been resurfaced
-New oil pump
-New water pump
-New Clutch
-Entire Short block assembled by machine shop

Exhaust:

-Custom 4-1 Headers
-Custom 2" SS exhaust
-Removed Cat
-Ebay fart canon on the end of it

I think that this is the majority of the things that have been done to this motor, i may have left out some things but i hope you all understand that appropriate seals and gaskets have also been replaced.

My goal is to get this thing back into my car and running before the end of Feb. i hope to then be able to put miles on it and have it tuned again for optimum performance. I am hoping and praying that we can hit about 120-130 WHP with this setup.

Now for those who are sceptical on why i would have spent so much money on building a NA 7AFE, well i wanted to do something that not too many other have done, and its my auto-x car and i wanted to be able to stay in the same class as i have been competing and winning in, so a motor swap would have put me into a different class completely.

I hope you guys appreciate the amount of work and the few pioneering things that have gone into this build. Questions are welcomed and so are comments. I will try to take more pics of the reassembly stage, i will hopefully be getting bottom end back in a day or two.

PS. Motor put down 100 WHP with 230K miles on it before rebuild, which is higher than most NA 7AFE motors out there, i think...

This post has been edited by 94celicadude: Feb 11, 2008 - 10:00 PM