MeanTA

I currently have the Edelbrock TES on my T/A and I am very pleased with the turn out that I have with them. But what about the SLP are they really that good or is the price just out of hand.
MeanTA

Omar

Archives.

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1989 IROC-Z 5.7L

Kevin91Z

iTrader: (1)

SLP's headers are made of stainless steel so they dont rust. They're also all one size, either 1 5/8" or 1 3/4", while Edelbrocks are 1 1/2" on some tubes and 1 5/8" on other tubes. I think the y-pipe is better on the SLP headers, too. Search this forum for more info, this has been discussed before.

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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

Dan87IROC-Z

Its been about a year now since I installed my TES Headers, and I have been VERY happy with them! I'm sure the SLPs are better, but I didn't at the time and don't now think that they are $150 better.

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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End

Current Mods: LT4 Hot Cam, Comp Cams 1.52:1 Roller Rocker Arms, Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Gutted Catalytic Converter, Performance Resource Chip, Accel Ignition Coil, Cap, Rotor, 8.8mm Wires, K&N Filters, JET TPI Air Foil, Ported TPI Plenum and Base, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET (w/o LT4 cam): 14.32 @ 97.7mph
(corrected for elevation)

7.5" 10 Bolt with 3.42s soon to come!

Get Blown ?

There's some guy with pics of his old rusty Edlebrock TES system and a new SLP system side by side. Should give you a general difference. Anyway check it out.
http://www.angelfire.com/ab2/rods/images/

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1989 Camaro RS LO3 WCT5 0-60' 2.34 1/4 15.8@87mph
http://350.StreetRacing.org
The posi unit breaker.

Jeff 91Z28/L98

I bought the TES headers and had them coated by Jet-Hot. I guess for the total cost I could have bought the SLP's but I'm not disappointed with the TES headers. I asked alot of questions before I bought anything and the majority of the responses were to go with the TES headers and Stage 8 locking bolts. It's a great modification either way you go. Just my 2 cents. Check em' out!
http://www.geocities.com/ssgtmcmichael/Jeff1991z.html

Tom Keliher

TES headers are great. They are designed for torque production on our cars. Get them coated if you live in a snow state and you never have to worry about rust. They come complete with all necessary bolts, gaskets, wiring extensions, clamps, donuts, and a complete instruction manual with step by step details and photos. They fit perfect, don't need any modification to fit, the AIR tubes are correctly aligned/positioned, etc.

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FORMULA 350 TK
Southern California 3rd Generation F-Body Organization©

Kevin91Z

iTrader: (1)

I dunno Tom, I already have more than enough torque on my car, I'd like some horsepower to go with it. Larger tube headers, like from SLP, will give me the horsepower I need, rather than the smaller tubes choking off the exhaust at higher RPMs. And for the price of Edelbrocks + coating, you can get the SLP's. This is just my opinion, like Tom stated his.


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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

91Bird305

People are going to go with what ever they have. If someone has SLP's they will say SLP's. If someone has TES's they will say TES's but get them coated (including the y-pipe) So its up to u man. I have the TES's and I like them. My exaust has a little to much flow to it now though (lost a little bit of TQ down low) but 2500+ I felt a huge increae in power. Somone said, to cure the tq problem down low is to just to install a resiantor in the exaust system and u will make huge gains or probably just keep ur cat on. (I took mine off and have a custom 3" exaust) So go with what u want man. Either way u go u will notice a lot better gains then ur stock exaust manifolds. But I suggest keeping ur cat on if u have a 305 and a 3" exaust system.

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Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

[This message has been edited by 91Bird305 (edited January 29, 2001).]

TRAXION

Opinion shminion. The SLPs are better ... period. Yea - the Edelbrocks may fit good. Heck ... the SLPs fit good too. That leaves performance, material, and price. SLPs offer much better performance and better material at a $150 more. That is $150 well spent. Putting 1-1/2" primaries on some exhaust ports ant 1-5/8" primaries on others is ludicrous. Its a marketing gimmick that Edelbrock thought would work but didn't. Furthermore, 1-1/2" primaries on a 350 is rediculous.

From a performance perspective...
The Edelbrocks should only be used on a stock 305. A heavily modified 305 should use the SLP 1-5/8" headers. Completely stock 350s should use a 1-5/8" header. Modified 350s should use a 1-3/4" header. Severely modified 350s or 383s/400s should use the Hooker Long Tube.

Tim

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• Program your own PROMs!. Read my article to get started!
• Research and Experiment before asking questions.
• This is not a chip store. Go to the classifieds if you want someone to sell you a chip or give you a BIN.

TRAXION's 1990 IROC-Z
Best Time = 12.244 @ 112.51mph (1.778 60' / 7.819@88.32mph in the 1/8)
All Natural. No Force. No Drugs. Stock Bottom End. Stock Body Panels.
Gunning for NA 11's with bigger cam, bigger stall, and bigger exhaust.
-=ICON Motorsports=-
Moderator: PROM board at thirdgen.org

91Bird305

Does anyone have any dyno numbers with the same engine with SLP's and then TES's? Cause until they do then they are just opioions.

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Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

TonyC

iTrader: (1)

In summit racing, the description for SLP's headers stated that they outperformed Edelbrock's TES when dynoed on a 383. I don't know what models or the engine buildup, sorry.

91Bird305

Yeah, and K&N claims 20hp too. LoL

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Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

CamaroMike

I have Edelbrock and I wish I had SLP's!and!

Moderator Edit: Please dont type multiple characters like that. It makes the screen scroll and its hard to read.

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84 Camaro ZZ4 with HOT cam. 1.88 60' (12.98 @ 105MPH E.T.)
Other Mods: You name it and I have probably changed it.

2001 Dodge Ram Quad Cab 5.9L 4*2

ASE Certified Auto Tech
LIVE AND DIE BY THE ALMIGHTY BOWTIE!

[This message has been edited by Kevin91Z (edited January 29, 2001).]

Tom Keliher

Yeah, my engine only rev's to 6800 RPM. I guess I need bigger tubes



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FORMULA 350 TK
Southern California 3rd Generation F-Body Organization©

calroc

Yeah, but maybe it'll rev to 7500 with the SLP's......

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85 calif. iroc
383/A4
9" rear

Tom Keliher

Maybe even 8500!!

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FORMULA 350 TK
Southern California 3rd Generation F-Body Organization©

Kevin91Z

iTrader: (1)

Yah, I can stand on the gas pedal and make my car rev to 6500 too. You had a ballooned converter, who knows what RPM the HP really falls off at. Have you taken your car at WOT with the T5 yet? Does it still pull up to 6500? We'll see when I get my engine in, which headers are better. I'll race you.

TRAXION

The thing is ... imagine how much better your car would rev to 6800 and how much more HP you would be creating above 4500 if you were running SLP 1-3/4" headers instead of the Edelshmucks. Heck dude, I ran 12.2's at 112mph with wimpy SLP 1-5/8" headers. However, I would never ever recommend them to someone who had a combo like mine. Clearly a set of 1-3/4" headers or better yet the 1-3/4" longtubes with 3" collectors would work better. Just because you have them on the car doesn't mean that they are correctly balanced for your combination.

Tim

------------------

• Program your own PROMs!. Read my article to get started!
• Research and Experiment before asking questions.
• This is not a chip store. Go to the classifieds if you want someone to sell you a chip or give you a BIN.

TRAXION's 1990 IROC-Z
Best Time = 12.244 @ 112.51mph (1.778 60' / 7.819@88.32mph in the 1/8)
All Natural. No Force. No Drugs. Stock Bottom End. Stock Body Panels.
Gunning for NA 11's with bigger cam, bigger stall, and bigger exhaust.
-=ICON Motorsports=-
Moderator: PROM board at thirdgen.org

Tom Keliher

HAHAHAHAHA!!! What???? Are you serious?? HAHAHAH!!

Yeah, for sure, now I got a slipping clutch.... HAHAHAHAHAHA!!!!!!

Kevin91Z

iTrader: (1)

A slipping clutch? Told you, you shoulda got the McLeod. Mine doesnt slip.

Guido

Ive had both and the SLP's were by far the superior set. They did not rust and I had nothing done to them. They fit better than the edelbrock's. The AIR tubes are easier to get to on them than the edelbrocks (edelbrock has one side pointed the opposite direction it should be).

I bought the 1 3/4" ones because I was upgrading parts at the time and got a good resale out of the edelbrocks. I have ling tubes now. If I were modifying another car and were to use shorty headers, SLP would be who i went with.

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-86 IROC
Vortech stuffed EFI 406 in progress
-=ICON Motorsports=-
Cluelessness: There are no stupid questions, but there are a lot of inquisitive idiots.

Kevin G

Back in the day, I have used both the SLP and Edelbrocks...

SLP was way better in quality. Thaey are stainless, and held up to the abuse I gave them
Edelbrock coated headers sucked a$$ compared to the SLPs.. The welds at the collector came apart on my passanger header. And the overall quality wasnt impressive, especially the y-pipe.

I would recommend SLPs all the way over Edelbrocks.

The only concerns I have heard from the SLPs are that some people had slight warping, causeing for header leaks a few years back.

Tom Keliher

My bad! It's not slipping. It's ballooned!! HAHAHA!!


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FORMULA 350 TK
Southern California 3rd Generation F-Body Organization©

Tom Keliher

Rust? What's that?

Oh yeah, you guys live where they salt the roads...........

Um..... OK. Rust..... hehehehehe!!!

Kevin91Z

iTrader: (1)

Ok Tom, you've lost it, gone off the deep end, went to the funny farm. Clutches dont balloon.

Try this comparison. Mauro's 355 engine with Edelbrock heads, Edelbrock intake manifold, LT4 HOT cam, and Edelbrock headers, made only 4 HP more and 1 TQ less than my 350 engine with L98 heads, stock ported intake, ZZ4 cam, and SLP 1 5/8" headers. You can argue that it was because his DFI wasnt tuned, but still, that combo alone should be worth 20 HP over mine, at the very least. It showed in his ET's too. His best time was 4 hundreths faster, but almost 1 MPH slower than me. I blame it on the Edelbrock headers choking off his HP. Draw your own conclusions.

Tom Keliher

Yeah, now there was a great combo. Ask Juan.....

HAHAHAHAHAHAHA!!!!!

Kevin G

I never drove my GTA in the winter, and the damn Edelbrocks still fell apart like the cheap headers they are. .....Um ..Ok.Cheap....HEHEHEHEHE

Kevin G

You talking about my 383 that ran 12s??

When you run that, give me a call

Kevin G

Oh yeah.

AHAHAHAHAHAHAHAHAHAHAHA

Tom Keliher

383? Oh, there's the difference...... well when my old *** 110K 350 runs 12's I'll let ya know hehehe

Kevin G

Damn Tom, how long have you piddled with that car of yours all these years, and not even broken the 12s yet???

Maybe you should invest in some other parts.

Tom Keliher

Yeah, I have. Suspension and brakes. Wanna road race?

And as if it really matters, take out my slipping 700R4, and drop 400 lbs weight, and that would put my car about equal to many others. What do you think it would run then? My race weight last time was 3845 lbs with a slipping trans. You tell me.......

Blockhead

You should all sell your TPI and put a TBI on it. That will yield superior torque numbers. I even use Summit 1 1/2" longtube headers and a 2 1/4" catback that the exhaust shop fixed me up with!

When i hit the go pedal it FLYS!
If only you guys could take a ride in my car you would see a true example of a fine automobile.

Road course and drag strip. My 14" stock wheels get me everywhere! 1.3 on the skidpad and 1.5 in the 60'.

Cant be beat.

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89RS w/ Rawidiot power package
Powerhouse 334 stroker
ported heads
stock cam
NOS octane booster
18.93 @ 69mph

Jarod

I had a set of Jet-Hot coated TES and 2 months after my 305 croaked and I dropped in a 350, I continually kicked myself for not going with the 1 3/4 SLPs. Especially after I decided to upgrade the heads and cam. The TES were pretty easy to install though, however the y-pipe didn't bolt up to the driver's side header very well. It came in at a different angle and never really sealed properly. Also, after about 8 months they did start to rust even with the ceramic coating. It wasn't real bad, but there was some surface rust on the air tubes and the collectors which I'm sure is only going to get worse. I sold the car so I don't have to worry about it now. Just my $.02

Tom Keliher

Blockhead, you're my idol! Where you been for so long?

Tom Keliher

Jarod, in all seriousness, you probably forgot to use the special ceramic vaseline coating to prevent rust of the bung hole.

Jarod

Well I figured I wouldn't need it seeing as how I don't like it up the *** . If I ever change my mind though, I'll be sure to give you a call cause there's no doubt you've got plenty in stock. Btw, I think there's a typo on your location. Shouldn't that be San Fransico instead of San Fernando?

Blockhead

My car has been featured in various publications across the country. I find it hard to believe you've missed me.

Im a pretty big celebrity on the east coast. Maybe you should come out and we will do a dyno comparion on Edelbrock headers vs. SLP headers.

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89RS w/ Rawidiot power package
Powerhouse 334 stroker
ported heads
stock cam
NOS octane booster
18.93 @ 69mph

Tom Keliher

No, I don't have any because my headers were coated by HPC.

However, I'm sure you'll be changing your mind soon about taking it up the *** , so just in case you probably ought to stock up.

Tom Keliher

Blockhead, yeah weren't you on the cover of GMHTP?

I thought you had Summit longtubes? Now I'm so confused, I don't know what to do.

Maybe I should just run short stacks like a P-51? What do you think Blockhead? Will that get me into the club?

Blockhead

Run them through the hood like a derby car.

Jarod

Well sending me pictures of your lard *** in lingerie isn't gonna make me change my mind anytime soon so find someone else to send them too. Friggin flamers.

Tom Keliher

I would never have thought of such a thing. Just goes to show you must truly be a latent .......

Tom Keliher

Well boys and girls, it's been fun but my truck brakes are ready now and it's time to rejoin the real world. Lot of laughs, we must do this again some time. HAHAHAHA

Jarod

Bah, that was lame. Two posts and you already gave up? Don't waste my time ya poodle poker.

Kevin91Z

iTrader: (1)

Or maybe it was just the fact Mauro put the clutch disc on backwards?

Blockhead

Dont forget to make those pipes going through your hood 1 5/8" Ya know since they make more torque. Better to smash the other guy with.

Torque is what wins races afterall. Can I talk you out of those LTR and plenum and put a turbo city TBI on it?

Im sure you will love it!

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89RS w/ Rawidiot power package
Powerhouse 334 stroker
ported heads
stock cam
NOS octane booster
18.93 @ 69mph

91Bird305

Dude, I hope u are joking.

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Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

calroc

This sure beats workin'!!
PS. Be sure to read Blockheads Post over at CamaroZ-28.com titled " A TBI success story w/in" under the handle "334TBI"
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85 calif. iroc
383/A4
9" rear

[This message has been edited by calroc (edited January 30, 2001).]