I am almost certain now that i will be installing either a vortech, RK sport, or Powerdyne supercharger (6psi) on my car instead of the heads and cam work. simply because, it will be eaiser to install, none of my engine will be sent out, i wont have to pull my engine or take the front end off my car or take the top end apart to get my cam set. Also, i SHOULD be making more power with a supercharger.

What are your thoughts on this? am i doing the right thing or no?
I feel that it is a different path to make the power but it is along the same route, more air = more power. i will just be force feeding it.

thanks for the input

 

ported heads benefit superchargers too you know

I would port them and then save for the supercharger for later.

How many miles on your bottom end? Heads/Cam won't be as bad as a supercharger which will surely accellerate the wear and tear on your engine.

 

There is no right or wrong way. Get the blower. You can port the heads and install a cam when you pop a gasket or bust a ringland.

 

a blower is easier to install then heads and cam?
damn i helped put an ati on a buddies 95z and that was a pain in the ***.
i would rather do a cam change.

not really sure if you will make more power with a supercharger or not, there are some fast head cam cars running small cams on here.
i will say the supercharger will effect drivability the least though

 

my LT1 has around 57000 miles on it. i plan on doing the powerdyne supercharger, 6psi kit. which doesnt recquire tapping into the oil pan, and runs quieter than most others to complete that "stock sleeper" appearance i aspire to create.

1994 z28 A4
current mods - TB bypass, b&m shift kit, RK sport cat back exhaust, iat sensor upgrade, air foil, ported mass air, a madz28 tune and the Powerdyne 6psi supercharger, i hope to have around 400hp to the wheels.
is this a good plan to shoot for?

thanks

 

well, to give you some perspective, I had just a cam and 340 or so rwhp and blew my bottom end, so as often as people run heads/cam on stock bottom end I would say they blow their motor running over 400CRANKhp. I have now been told by a few different people that the stock bottom end is shaky past 415 or so crank hp, which is about 350rwhp. Past that point you better have super low mileage and perfect internals for it to work (id suggest rebuilding your bottom end personally, I threw 2 pistons and 2 conn rods b/c of 1 loose connecting rod pin).

 

if you had a loose connecting rod i cant belive it stay together long at all
there are plenty of people running over 350 REAR WHEEL hp and not having issue, hell mines pushing 420 rwhp

 

but just because there are plenty of people that do it, doesnt mean it cant cause problems. I am tired of hearing people say IT WILL WORK FINE because the only reason I can see that a connecting rod came loose is from the aggressive cam rattling it loose. it was NOT loose when I put the cam in, or even 2,000 miles after. I guess you havent seen the large number of people with just cams that have blown their motor, or you choose not to read those posts.

 

just because 75% of the people spraying a 150 shot of nitrous on their motor dont blow it, doesnt mean you CANT. No one ever told me there was ANY danger at all before I put my cam in, and now I havent had a car for 4 months. Just my thoughts.

 

oh yah, by the way, how long has your car been running fine? It took my car 2 and a half years of racing w/ the cam in it to blow. You have a miss after 5800rpms? hmm..... thats not good......

 

Blower now, do the heads/cam later.

 

a stock motor can fail just as easy as a modified motor. even a build bottom end can fail. when your pulling the engine apart like that your taking the chance of something getting into it. a little dirt will tear the hell out of a bearing.
and yes, when you add more power you increase the chance of finding that faulty part.

if someone has to tell you that there is a chance of you damanging your motor you probably should find a new hobby.

 

bought the car at 40k and started modding it and racing on the weekends. put the hot cam in at 60k mile, drove that till 80 then put the 306 cam in and drove that till 90 and put my current cam in. probably about 8-9 year of hard abuse and the stock bottom end still holding.

what the hells the miss have to do with the bottom end holding up to a cam swap?

 

true, you should know that your motor could fail at any time. I know I was pissed though when I was at 3,000 rpms and my motor threw a rod out the oil pan
maybe I'm just venting...

 

well my car had a slight miss right before it blew and that was the only thing wrong w/ it.