quote:Originally posted by Midlife CrisiSS: It may be the placebo affect, but the car seems alot stronger than before. Maybe it is because I'm carrying alot less weight in my wallet.
Yeah, that could be it!
Seriously, I think once you have the car tuned you'll see an improvement in the dyno numbers.
Posts: 1907 | From: I hope I'm not repeating myself. Again. And Again. Stop picking on me! Waaahhh!! | Registered: Feb 2000
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-------------------- http://community.webshots.com/user/sscamaro02 AMERICAN CAMARO ASSOCIATION 2002 SS (M02-2022)(Build Date 9/10/01) T-Top,Bright Rally Red,Ebony Leather,Hurst Shifter,SLP Options: 345HP,SS Grille,SS Floor Mats,Personalized SS Rear Deck Mat,17"X 9" ZR1 Type Chrome Wheels,SS Cover,Engine Plaque. Additional Mods:GMMG Chambered Exhaust,FLP LT Headers,SLP CAI,K&N Filter,Silver Hood Stripes, Silver Letters on Rear Facia and Spohn Performance LCA, Panhard,SFC and Adj. Torq Arm w/Drive Shaft Loops.384/rwhp and 381/rwtq
1969 SS396 Olympic Gold.Unrestored,L34(350HP),M21 close ratio 4-Speed,Cowl Hood,Spoilers Front and Rear,Console w/Gages.Second owner since Nov.1971. 1 of 2018 Produced Posts: 828 | From: Denver,PA | Registered: Dec 2001
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quote:Originally posted by KevinA: That si about what I would expect. It seems that HP numbers are always inflated. I get mine installed this weekend. I drop off the car tonight.
Good luck! I'm hope your car is more receptive to the LTs. I did have the SLP y-pipe on for the orginal dyno and that may have negated the improvement somewhat.
You have the lowest gains that I have seen. Was that on a Mustang dyno, by chance?
Yes, maybe your gain is a bit less than the common 25 RWHP (on a Dyno-Jet .... without tuning) due to the SLP y-pipe being on the car for the "before" numbers.
Gordon PPC Let us know how you do with the tuning
Posts: 120 | From: New Hampshire | Registered: Nov 2002
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quote:Originally posted by CAMSS: Yo Brad! Congrats on the headers...
I agree, your numbers seem low. As Jim Mac suggested, find a good shop to have your ride tuned and see what that does for you.
If I remember correctly, my SLP LTs gave me about 22 -25 more HP & TQ. Let us know how it goes!
Thanks Craig! I don't know what the deal is .
I used the same dyno-jet in both instances. One difference was that the ambient temp was 20 degrees higher, but the correction should have normalized this. The air/fuel mix was about 13, down from 13.8.
I hope to go the track on saturday and see if there is a difference. Maybe the SAE correction factor isn't accurate at the altitude here.
posted
Why are the actual #'s lower with the headers?
Still waiting to have mine tuned. It sure is a lot louder with the Borla exhaust. Almost too loud sometimes.
-------------------- Hawkeye: SSOA F98-C98
1998 SS - Black All Options - Mods Whisper Lid, K & N, Lou's Short Stick, Shift Light, Skip Shift, SLP Y, Borla, 4:10's, BMR STB, SLP SFCs, Granatelli MAF, Hypertech III, 160 Stat, Mallory Billet Pedals, Metco Aluminum LCAs,Fast Toys Ram Air Mod, Spohn Panhard Bar, BMR Torque Arm, free EGR mod,power antenna, BMR LCA brackets, Gentex Temp/Compass Auto Dim Mirror, AllMaxx Strobe and Wig Wag, BAER Eradispeed rotors,PPC Headers with Random Technology Hi Flow Cats, BMR Drive shaft Loop,FAST 78MM Throttle Body, FAST 78MM Composite Intake, Mobil 1 & lots of Zaino.
Wife & Best Friend Mary - copilot. Posts: 5558 | From: Windsor, Ontario. Canada | Registered: Feb 2000
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quote:Originally posted by KevinA: I did have the SLP y-pipe on for the orginal dyno and that may have negated the improvement somewhat.
From the dyno testing that we have done, the SLP Y-pipe made absolutely NO HP/TQ difference on an otherwise stock car. It DID make it sound better though. I still highly recommend installing one, just for the sound and look factors! I am still going to put one on our car, due to the sound, and to get rid of the ugly flat pipe:)
[ 23. April 2004, 09:56 AM: Message edited by: Steve da Wrench ]
posted
I got my headers installed last weekend. I still have an exhaust leak on the drivers side, I think it's at the first connection. Gotta figure out how to fix it. The pipes also bang the floor board on the drivers side when you get on it hard. Gotta tweak that too.
quote:Originally posted by KevinA: I did have the SLP y-pipe on for the orginal dyno and that may have negated the improvement somewhat.
From the dyno testing that we have done, the SLP Y-pipe made absolutely NO HP/TQ difference on an otherwise stock car. It DID make it sound better though. I still highly recommend installing one, just for the sound and look factors! I am still going to put one on our car, due to the sound, and to get rid of the ugly flat pipe:)
I asked that question about the Y-pipe and the person said it made no improvement from the stock one. This came from a person who knew the cars well.
Headers only yielded 10-15HP WOW 1000 bucks for that... better off with a cam.. Now it will cost another 450 or more for a tune to get another 10 HP..
I was thinking of changing the exhaust till I ran the car at the track, the couple of hundred was not worth it. The SLP exhaust did its job.
Posts: 160 | From: Toms River, NJ | Registered: Mar 2003
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quote:Originally posted by KevinA: I got my headers installed last weekend. I still have an exhaust leak on the drivers side, I think it's at the first connection. Gotta figure out how to fix it. The pipes also bang the floor board on the drivers side when you get on it hard. Gotta tweak that too.
I had to use the old style muffler clamp to get the s-pipe to seal. I had clearance issues with the tunnel brace that caused some banging on hard acceleration. FYI
quote:Originally posted by KevinA: I got my headers installed last weekend. I still have an exhaust leak on the drivers side, I think it's at the first connection. Gotta figure out how to fix it. The pipes also bang the floor board on the drivers side when you get on it hard. Gotta tweak that too.
Its about time.
Slacker.
Kevin, I had the same exhaust leak when my SLP LTs were installed.... It turns out I had a crappy set of gaskets. Try swapping them out and see if that helps.
Posts: 83 | From: South Riding, VA | Registered: Feb 2002
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quote:Originally posted by KevinA: I got my headers installed last weekend. I still have an exhaust leak on the drivers side, I think it's at the first connection. Gotta figure out how to fix it. The pipes also bang the floor board on the drivers side when you get on it hard. Gotta tweak that too.
Its about time.
Slacker.
Kevin, I had the same exhaust leak when my SLP LTs were installed.... It turns out I had a crappy set of gaskets. Try swapping them out and see if that helps.
I'm pretty sure it's the S pipe as midlife stated. I've been off from work and working on the house all week long so I haven't had time to look at the car let a lone drive it.
Posts: 2502 | From: Binghamton, NY | Registered: Feb 2000
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posted
You need a dyno tune!!! John Tighe put PPC long tubes on his 01 SS, got it dyno tuned and got something like 360rwhp and 370lb ft of torque!! A 01 Z28 with the same mods put down 350rwhp and 360 lb ft of torque (his numbers were lower but he also has the largest gain of the two of them).
The dyno tune was VERY important, the driveability of the cars sky rocketed.
Posts: 1031 | From: Germantown, MD USA | Registered: Feb 2000
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WOW 1000 bucks for that... better off with a cam.. Now it will cost another 450 or more for a tune to get another 10 HP.. 
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