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 think i was a bit harsh on my usage of words and blaming the machine shop, it is not only a machine shop but a performance engine building shop as well, thats why i would only have assumed that they should have sealed it correctly.

They obtained a complete engine gasket kit so they had a new gasket for it, and they also rebuilt the stock oil pump, so in other words, new oil pump but same housing. After some discussion with my father i think we have both come up with a possible conclusion to our oil leak.

The first night i drove the car home was the first time that it fully warmed up and was driven at all, so our assumption is that the difference in expansion rates between the aluminum oil pump housing and the cast iron block allowed to the bolts that hold the housing on to slacken a little after the first run and cool down of the motor. So i will go back and re-torque all of the oil pump housing bolts and see if that cures my problem, if not then i will have to remove the oil pump and replace the gasket. I am also going to contact the shop that did the work and ask if they agree, these guys are very knowledgeable and this is why i was so surprised when this started leaking.

Hopefully a re-torque of the oil pump housing bolts will cure it, i mean it is a brand new motor with only 17 miles on it after all, so it is safe to assume that a few things may need to be re-torqued after it has run for a little while.

Once again thanks for the advise to all, i will keep you posted on further development.

Matt