LT1-LT4 Modifications 1993-97 Gen II Small Block V8

300Rwhp?

Thread Tools
 
Search this Thread
 
Old 01-01-2006, 10:40 AM
  #1  
TECH Enthusiast
Thread Starter
 
Camaro 0wner's Avatar
 
Join Date: Jun 2005
Posts: 628
Likes: 0
Received 0 Likes on 0 Posts
Default 300Rwhp?

I know how I can make my car go faster and get into the 12's. (high 12's) For instance a stall, or a gear. But how can I achieve making 300Rwhp? I have a A4 94 Z28 and I'm 284Rwhp right now. Is there any mod I can do that will get me there? Currently, I have LT headers, Matching Y-pipe, Moroso CAI, LT4 KM and a tune. Any ideas that could get me there? I also have a 160' thermostat, but that really doesn't do anything for HP...

Thanks for the help.
Old 01-01-2006, 11:37 AM
  #2  
10 Second Club
iTrader: (8)
 
TwoFast4Lv's Avatar
 
Join Date: Nov 2001
Location: LT1 land...the "409" of the 90s!
Posts: 10,023
Received 6 Likes on 5 Posts

Default

a cam even a baby one
Old 01-01-2006, 11:57 AM
  #3  
TECH Enthusiast
iTrader: (24)
 
darrell hoagland's Avatar
 
Join Date: Apr 2005
Location: madisonville ky
Posts: 538
Likes: 0
Received 0 Likes on 0 Posts

Default

nittrous would do it
Old 01-01-2006, 12:10 PM
  #4  
TECH Apprentice
iTrader: (1)
 
1bottled93toenvy's Avatar
 
Join Date: Jan 2005
Location: Las Vegas.. back in san jose..
Posts: 305
Likes: 0
Received 0 Likes on 0 Posts

Default

cam and nitrious.... ull love it
Old 01-01-2006, 12:16 PM
  #5  
Teching In
 
LT14Formula's Avatar
 
Join Date: Mar 2005
Location: Texas
Posts: 39
Likes: 0
Received 0 Likes on 0 Posts
Default

Add electric waterpump, cut-out, pulleys, and 1.6RR.

That should do it.

- LT14Formula
Old 01-01-2006, 12:18 PM
  #6  
11 Second Club
iTrader: (1)
 
96capricemgr's Avatar
 
Join Date: Sep 2004
Posts: 11,975
Likes: 0
Received 12 Likes on 12 Posts

Default

Dynoed my Caprice the other day and put down 290rwhp on a rich mailorder tune through an unlocked 2800 Edge and my cam is a good bit smaller than 98% of the guys here would ever consider, 208/221 compared to say the ever popular HOT cams 218/228. Also consider I have an 8.5" axle and heavier tirewheel combo, and this was on a superflo which like a Mustang reads lower than a dynojet. Locking the converter or some more tweaking of the tune and I would be at your goal.
Old 01-01-2006, 12:26 PM
  #7  
12 Second Club
iTrader: (1)
 
METALBEAST's Avatar
 
Join Date: Dec 2003
Location: Cleveland, Georgia
Posts: 3,027
Likes: 0
Received 0 Likes on 0 Posts
Default

I'd suggest a cutout and 1.6/1 RRs. Are you running a mail order tune or did you have it dyno tuned. Dyno tuning could net you a few more ponies. I would not worry about dyno numbers too much. You could dyno 284 RWHP one day then dyno 290 RWHP the next. I guarantee you if you dynoed the car with engine cool on a nice cold day in the winter, you would definately gain a few horses.
Old 01-01-2006, 01:10 PM
  #8  
11 Second Club
iTrader: (1)
 
96capricemgr's Avatar
 
Join Date: Sep 2004
Posts: 11,975
Likes: 0
Received 12 Likes on 12 Posts

Default

Yeah the correction factors they dynos use to "correct" for weather are better than nothing but not perfect by any stretch.
Old 01-01-2006, 04:03 PM
  #9  
TECH Enthusiast
 
TNMuscle's Avatar
 
Join Date: Oct 2005
Location: Tennessee
Posts: 714
Likes: 0
Received 0 Likes on 0 Posts
Default

tune and/or CAM IT!
Old 01-01-2006, 04:09 PM
  #10  
TECH Fanatic
iTrader: (8)
 
ls1charged's Avatar
 
Join Date: May 2005
Location: FL
Posts: 1,475
Likes: 0
Received 3 Likes on 3 Posts

Default

u should defenatly look into getting a cam, u can increase your hp quite abit depending on how big and obnoxiouse u want to go. and the car will sound better/meaner.
Old 01-01-2006, 04:14 PM
  #11  
TECH Enthusiast
 
TNMuscle's Avatar
 
Join Date: Oct 2005
Location: Tennessee
Posts: 714
Likes: 0
Received 0 Likes on 0 Posts
Default

getting a good catback would help too
Old 01-01-2006, 04:19 PM
  #12  
TECH Resident
 
Chaotic Firebird's Avatar
 
Join Date: Jun 2005
Location: Youngstown, Ohio
Posts: 847
Likes: 0
Received 0 Likes on 0 Posts
Default

I would also do some suspension stuff if you don't already have it.

Lower control arms, poly trans mount [go with the Prothane one through www.spohn.com], and good street tires [all weather ones won't cut it, lol].
Old 01-02-2006, 12:51 AM
  #13  
TECH Enthusiast
Thread Starter
 
Camaro 0wner's Avatar
 
Join Date: Jun 2005
Posts: 628
Likes: 0
Received 0 Likes on 0 Posts
Default

I have a dyno tune. I also already have a poly mount. That was one of the first things I got. The stock tranny mounts are horrible...I would like to look into a cam, but it's pretty expensive after the labor. I can't do that kind of work myself. I would consider underdrive pulleys, but I kind of think it's a waste. I used to have the march and they wobbled a bit. Because of this, I put the stock one back on. How would 1.6 RR's give me power? Also, how hard is that to do and how much?
Old 01-02-2006, 09:19 AM
  #14  
11 Second Club
iTrader: (1)
 
96capricemgr's Avatar
 
Join Date: Sep 2004
Posts: 11,975
Likes: 0
Received 12 Likes on 12 Posts

Default

Springs and rockers would definetely be worthwhile. Springs start at about $100 for the Combination Motorsports ones, rockers start at about $170 for ProForms to over $300 depending where you buy. Might talk to CM they frequently have package deals on springs and the Comp ProMagnum steel rockers for little more than what Summit sells those rockers alone for.

I am sure someone will pop in and say what crap ProForm is but I have had them on my car since about 118K, swapped in a cam and appropriate springs around 132K and now it sits at over 165K and they are still going strong.

Not that hard a project, need basic handtools(including allen keys) a spring compressor and a breaker bar long enough to rotate the engine numbers 8 and 9 here are what you need to do http://shbox.com/1/how_tos.html
Old 01-02-2006, 01:15 PM
  #15  
TECH Enthusiast
 
RoAdRaGe912's Avatar
 
Join Date: Nov 2004
Posts: 660
Likes: 0
Received 0 Likes on 0 Posts
Default

well, this might help u out with how the 1.6 roller rockers can help you. most people tend to think that if their heads can't flow any more at higher lift then there's no point, but that's not the case.

in this picture you can pretend the black line is the actual cam lobe. the purple line can be lift/duration from a 1.5 RR, blue is 1.6, and red is 1.7.



by increasing the rocker arm length you increase lift. more lift isn't neccessary on the stock LT1 heads, but by changing the rocker ratio you are also changing how long the valve is open at your optimum flow number. take any arbitrary number, like .400 or .450 for lift on that graph above. it's easy to see how much longer the valve will be open at that lift or above when comparing 1.5 and 1.6 RRs.

hope this helped a little.
Old 01-31-2006, 12:13 PM
  #16  
Launching!
 
98vortecbw's Avatar
 
Join Date: Nov 2005
Location: Baytown (dirty bay) , TX
Posts: 282
Likes: 0
Received 0 Likes on 0 Posts
Default

you should be there right now but a lt4 hot cam would do it... with a little nitrous of course... hehe
Old 01-31-2006, 12:22 PM
  #17  
On The Tree
iTrader: (-1)
 
87turbo2's Avatar
 
Join Date: Aug 2005
Posts: 162
Likes: 0
Received 1 Like on 1 Post
Default

My stock exhaust Lt4 is right there.



Quick Reply: 300Rwhp?



All times are GMT -5. The time now is 09:10 AM.