chrisquested wrote:
see the thing is i dont want to swap motors transmission and transfer case because that cost alot....all i wanted to do was add more horsepower to my stock 1.8L or find another motor that will bolt right up to the transmsission thats in the truck now...
my truck is a stock 1980 chevy luv 4x4 truck has the 4 speed trans the 1.8L motor all factory and i would like to get about 150 horsepower out of it.... i dont understand why people can bore out a motor put some kind of pistons and some dif cam in it and be pushing crazy horse power...but yet i cant do this to my luv? wats dif between a pop up piston and a flat top? why cant i put these type of pistons in my motor? so anyway i figure 150 hp in a luv is good enough for anything i need to do with it....
it all has to do with engine design and dynamics.
The design of the Isuzu engine was to be a reliable economy engine. It never had any intention of making more than 100 horsepower. Point in case, the bottom end is fair, the rod stroke ratio is very poor and the head flows are much to be desired. Plus, there is a very small aftermarket to support these engines, after all the money was put into making the power you want, it wouldnt be worth it.
difference between a flat top and "pop up" is a flat top is just that, flat. while a pop up has a dome that protrudes into the chamber.
the reason you cant use pop ups, is because I dont think any exsist for the isuzu.
and while you think 150 is enough........ you will be back looking for more based on your avatar.
A.j.