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 here it comes back from the dead... again

After 10K miles on this new motor, oil consumption is 1 FULL quart for 200 MILES!!!!!!!!!!! :-O

so the head came off this past weekend, before hand though, compression test revealed low compression on ALL cylinders, and 3 & 4 were virtually useless.

Upon head removal, combustion chamber 3 & 4 valves were found to leak.... MASSIVELY

The piston to cylinder clearance is going to be calculated sometime within the next week once we get the pistons out, but it seems like the compression rings and oil control rings my have been swapped, or put in upside down.

Crank case is pressurized causing extreme blow by and thus the high oil comsumption as well.

So that may answer my question to why we only put 107 HP tot he wheels, the motor has been running in very poor performing conditions, mechanically everything was correct because it made it to CALI and back to the midwest, but the oil consumption was through the roof.

The bottom end and valve job was done by a shop, so unfortunately we cannot say that we goofed on the build up of the head and bottom end, they did.


So the goal is to sort out all the problems, get this thing back together and possibly see around about 120 WHP...that would be GREAT!

Just thought id update everyone after such dismal and disapointing results.

Let me know if anyone has suggestions,

Thanks to all

Matt

This post has been edited by 94celicadude: Sep 15, 2008 - 11:07 PM