Thread: Alternator Swap

Originally Posted by Shiftingshaddow

well if his z28 is stock and you have a gtp you should already beat him pretty handily, i would imagine. 70's and 80's cars sucked. bad. 80's looked cool on the outside, though.

first, get your car running right. get your vacuums up to par. fix any leaky gaskets. do any maintenance it needs.

but if you want to mod, start where everyone does. make your own intake. there is a write up in the how to section that i followed. you would never believe it would be that easy and cheap.

A)get a downpipe with u bend delete.
a)get a plog
b)other exhaust mods (ceramic crossover, ported rear header (debatable), cat back)
B)get headers. have fun installing.

go with headers if you are going to go further than the next few steps

get smaller pulley. you should be able to go to a 3.4 with the above steps and possibly a tune, colder plugs, and colder t stat. these are all debatable and maybe a car by car basis. 3.5 you should be able to do stock.

smaller than 3.4 you will for sure need headers and a host of other things and for sure a custom tune and probably some transmission investments if you race it a lot.

and i'm telling you as one friend would another.....make sure the car you are buying has a working overdrive gear (4th gear). you will be disappointed if it does not. go 70 mph and make sure the rpms are right around 2000. if they are 3000 the car has no overdrive. a lot of these are driving around and the drivers don't even know something is wrong.

i guess you are only paying 800 bucks or so maybe it won't be as big of a deal to fix or pay to have fixed.

Where did you find this info? You might be able to run a 3.5 if you have a good tune and 92+ octane with 105s and a colder tstat even then you might see kr. The smallest pulley I would run on a stock l67 is a 3.6 and you would probably still knock.

Sent from my mobile office.

Originally Posted by slick2500

Where did you find this info? You might be able to run a 3.5 if you have a good tune and 92+ octane with 105s and a colder tstat even then you might see kr. The smallest pulley I would run on a stock l67 is a 3.6 and you would probably still knock.

Sent from my mobile office.

i'm not going to find quotes but from couple vendor sites and a few people on here at least.

have i done it? no. i went to 3.4. has someone done it and messed something up? sure. doesnt that happen on stock pulleys sometimes?

but he doesnt need to mod to beat any of those cars.