Hey guys im just new to this board and to lt1's as well. i own an 87gn but i just baught a 97 z28. its a daily driver for me and my gf in the summer(im from montreal, canada) so its away for the winter. Anways i had it at the track this fall and i layed down a best of 14.025. Its bone stock with a k&n filter. It's a 6spd on 17"rims. To the point now, there are alot of subaru sti's and some quick ricers around here so 14 sec aint enough. I just baught a 4.5psi S/C FROM POWERDYNE, a 52mm TB, Lontubes w/y-pipe, short shifter and thats it for now.its has stock 3:42 gears. so my question is before i send my pcm to PCMFORLESS, WHAT ELSE SHOULD I DO??? ive got a few ideas but not sure if they would be worth it....like.......4:10's...custom cam...port stock intake and heads.... keep in mind its a daily driver and i just want to stay ahead of STI's and COBRAS's.any thaughts or advive would be great.

 

with bolt ons and that powerdyne, you should be fine. Keep in mind though, adding custom heads and cam will shorten the lifespan of your bottom end. You could do something such as a cc305, or hotcam (idk if either of those are good blower cams tho) and the supporting valvetrain and be fine. 4.10s would be a fine idea as well, but remember, our rear-ends are weak, so maybe upgrade to a 12 bolt and do 4.10s. With the power your wanting to make, your gonna want a new rear-end to get decent launches anyways

 

get a bigger fuel pump to be safe..it will allow you to push more boost later too
also get some spark plugs...get the ngk tr6..there a heat rangd colder

 

thanks guys , by the way what kind of 1/4 mile time are you gettineg with your mods

 

i wouldnt get NGK get good ole cheep autolite 104s gapped around .35.. get a better fuel pump and probably somthing pretty mild as far as a cam like a CC305 would probably work pretty well.. you also might not wanna go with 4.10s
those are pretty short gears for FI you might want too stick with the 3.42s or go 3.73s if you want too change them for whatever reason

 

Send the Powerdyne back and get any Vortech kit. Aftercooler or not, T-trim, S-trim would all be better than Powerdyne. In fact, even a butt-turbo is better than that blower.

 

bahahahaha

 

a LE3 heads cam package would be better than a powerdyne unit, dont expect much from 4.5 lb of boost.

 

ive heard some good things and some bad things about POWERDYNE. but on the other hand every part out there ive heard good and bad about. are you speaking from experience? i actually got the S/C of a guys 97 firebird. he put 2k on it, but the had to sell the car. i could have baught the car w/ the S/C but could work that out seeing the car was in the US and im from Canada. the only other mods he had were 3:73's, muffler, hypertech programmer, a set of drag radials and he was running 12.6. they guy was very honest. he also told me that when the car was stock and he changed the gears to 3:73 he ran a 13.7, which is very believable. so im figuring with my Longtubes, y-pipe w electric cut out, 52mm tb, short shifter and tuning and now most likely cc305 cam and 1.6rr, low 12's high 11's will be reached. any thaughts?
what would the LE3 kit give me? its not to late to change plans, this is my winter project. thanks

 

The powerdyne is not the best blower choice. Most of the guys around here will not say good things about it. 10.5.1 compression is not the best for boost and the le3 heads and cam setup would make the same amount of power. plus the stock shortblock will last much longer.

 

Expensive route: change up the bottom end (pistons, crank ect.) and run some more boost.

Cheep route: Get a blower cam, and some suspension mods.

 

not my favorite blower because the tech assistance sucked. the last one i put on was on a impala ss and the tuning was so far off i could die. but yours wasa off somethinf else. the blower is ok. but put a smaller pully on and get the thing tuned.

replace the fuel pump. and i like 3.42s for most blower cars on the street.

 

i ran a powerdyne, and for a daly driven street car they are just fine.. its not a BAD unit.. obviously there are better ones espcially for cars that are raced alot.. the powerdyne is a cheep simple unit that will work well with your bolt on car but you better keep it at or under the 6is psi mark and get it tuned by someone THAT KNOWS WHAT THEY ARE DOING or you will be rebuilding it very soon.. but my opinon on the powerdyne is fine.. there are ALOT of guys that actually own one for themselves that are pleased with them.. its a good entry level unit.. id buy another one if the price was right.. its all about your desired power level

 

so you guys think i should keep the stock 3:42's... thats good to hear.i know everyone talks bad about POWERDYNE but thaey are all runnig over 500hp. this is going to be daily driven, just want something to saty ahead of WRX and COBRAS., both stock of course.
i dont plan on going over 4.5 psi(for now anyways). im keeping the stock bottom end. so heres the complete list of what im going to go with for now:
-4.5 psi powerdyne
-52mm tb
-cc305 cam
-stock ported heads and intake(can get it done for $700)
-1.6 rr
-longtubes w/ y-pipe and electric exhaust cut-out
-pcm tuning by pcmforless

do this seem like a good combo, i should pump out more than 400rwhp right??? still open for opinions though..... i really appreciate all the advice and help guys, thanks

 

with those extra mods youll never see 4.5 lbs of boost. I ran a pOWERDYNE with a very similar setup. Try a whopping 3 full lbs. at 6200 rpm. It takes 2 lbs. worth just to run the blower so even if you make 4.5 you still wont make that much extra power. I agree with the others, get a kit from Vortech or Procharger and do it right the first time.