Afraid to add Vortech Blower
Thread Starter
Instructor
Joined: Nov 2007
Posts: 216
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From: Willie Nelson Country TX
Afraid to add Vortech Blower
The mods on my 9500 mi '02 Z06 are as follows: Halltech Venom, LG long tube pros into 3" x pipes w/small cats & Borla Stinger cat backs. 160 therm, cam has 228/232 in/exh dur., 595/605 in/exh lift & 114 LSA. Added a 25% underdrive pulley. Dynoed @ 425.2 hp and 391.6 tq. - @ 3 grand the torque curve goes vertical and it's like a sledge hammer in the butt.
My intent was to get the most for the least. Head work or aftermarket replacements, porting, etc. produce some gain but $s/hp ratio much higher than the above. I've also decided to keep the stock diff. gear ratio.
My intent was to add a Vortech blower next which should put me around 600 hp but my dyno guy advises against it. Bottom end is stock and not forged. He thinks pistons will fail @ some point. I figured on a clutch upgrade but don't want to go into the short blk on this 9500 mi cherry now. Gotta pay for my trophy bride's new baby grand piano 1st.
I'm just a shade tree mechanic that does almost all my own wrenching but I don't have a clue on this situation. Sure don't want to blow a piston or put a rod thru the side of the blk. Any advice, opinions or thoughts from a pro would be appreciated.
Thanks for reading.
My intent was to get the most for the least. Head work or aftermarket replacements, porting, etc. produce some gain but $s/hp ratio much higher than the above. I've also decided to keep the stock diff. gear ratio.
My intent was to add a Vortech blower next which should put me around 600 hp but my dyno guy advises against it. Bottom end is stock and not forged. He thinks pistons will fail @ some point. I figured on a clutch upgrade but don't want to go into the short blk on this 9500 mi cherry now. Gotta pay for my trophy bride's new baby grand piano 1st.
I'm just a shade tree mechanic that does almost all my own wrenching but I don't have a clue on this situation. Sure don't want to blow a piston or put a rod thru the side of the blk. Any advice, opinions or thoughts from a pro would be appreciated.
Thanks for reading.
Last edited by bojangles5169; Jan 31, 2009 at 04:07 PM.
Thread Starter
Instructor
Joined: Nov 2007
Posts: 216
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From: Willie Nelson Country TX
Thanks Bartsky
Yep - that's what I thought and it's a sweet running street machine the way it is - not really a slouch and no unusual mechanical problems to worry about + keeping 7 - 8k in the bank!
Thanks for the response - Glen
Thanks for the response - Glen
Race Director
Joined: Mar 2001
Posts: 10,030
Likes: 10
From: Prescott AZ
St. Jude Donor '04
I am on a stock bottom end with 609 Rwhp. The main key is just don't drive it stupid. I rarely take my car up to full boost. Also a meth kit will help and the tuners is the most important key not blowing up a stock motor. A few people have 700+ on a stock bottom end.
Melting Slicks
Joined: Apr 2003
Posts: 2,285
Likes: 16
From: Nashville TN
If you decide to go with a SC and intend to drive the car then start saving up for a forged motor. You will need it sooner or later. My engine lasted 1 year before breaking 2 ring glands.
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Safety Car
Joined: Jul 2005
Posts: 4,205
Likes: 2
From: Chicago-NW Burbs Illinois
There are guys with way more milage then you and run a blower with 600rwhp+ to boot. There are a hand full of guys with over 700rwhp on the stock short as well, but that's kind of pushing it.
If you want the extra power I say go for it! Just keep boost around 8# or so, and run an Alky kit for safety. As long as your tune is spot on you shouldn't have a problem.
Check out the F/I section and you'll see a bunch of guys running F/I on stock bottom-end with no problems. Again, it's all about the tune. Good luck!
If you want the extra power I say go for it! Just keep boost around 8# or so, and run an Alky kit for safety. As long as your tune is spot on you shouldn't have a problem.
Check out the F/I section and you'll see a bunch of guys running F/I on stock bottom-end with no problems. Again, it's all about the tune. Good luck!
Race Director
Joined: Mar 2001
Posts: 10,030
Likes: 10
From: Prescott AZ
St. Jude Donor '04
Melting Slicks
Joined: Aug 2005
Posts: 3,398
Likes: 2
I am on my stock engine with stock clutch at 48K miles and all is well and has been for the last 6K supercharged miles. I drive the car very hard and am in full boost frequently in 2nd, 3rd and 4th and the engine and drive train seem to be holding up very well.
I have recently lowered my boost to 10 psi and am right at 600 rwhp as I am actually faster with the limited traction I have with the lower hp until I get wider rims/tires.
I have recently lowered my boost to 10 psi and am right at 600 rwhp as I am actually faster with the limited traction I have with the lower hp until I get wider rims/tires.
Last edited by briann510; Feb 1, 2009 at 10:37 PM.
Team Owner
Joined: Mar 1999
Posts: 28,753
Likes: 9
From: San Jose/Bear Valley CA
CA Events Coordinator
Don't go into the F/I world without a pocket full of cash. You will need a clutch, upgraded fuel system, meth injection, tunes for days, forged motor and on and on and on.
There are lots of little problems along the way like corrupted computers that need replacement.
Best of luck with what you decide.
There are lots of little problems along the way like corrupted computers that need replacement.
Best of luck with what you decide.
Drifting
Joined: Jan 2005
Posts: 1,517
Likes: 0
Are you going to toss a rod no matter what if you put a blower on? Heavens no.
should you put a blower on and expect it to be the last $$ you spend on it? Hells no.
Do it? Hells yes.
Run the lowest boost you can and have someone who knows what they are doing tune it and you will have lots of miles left on the stock block along with that extra nudge in power you know you want... Just don't expect everything to be as though you never modified the car.. You've got a decent size cam in there, make sure you're running enough spring for it, esp adding the blower.
should you put a blower on and expect it to be the last $$ you spend on it? Hells no.
Do it? Hells yes.
Run the lowest boost you can and have someone who knows what they are doing tune it and you will have lots of miles left on the stock block along with that extra nudge in power you know you want... Just don't expect everything to be as though you never modified the car.. You've got a decent size cam in there, make sure you're running enough spring for it, esp adding the blower.
....my .02
Instructor
Joined: Jan 2007
Posts: 163
Likes: 0
From: Frisco Texas
Don't go into the F/I world without a pocket full of cash. You will need a clutch, upgraded fuel system, meth injection, tunes for days, forged motor and on and on and on.
There are lots of little problems along the way like corrupted computers that need replacement.
Best of luck with what you decide.
There are lots of little problems along the way like corrupted computers that need replacement.
Best of luck with what you decide.
