I have Edelbrock "shorties" on my 98' SS, would full lengths be worth it?
08-05-2007, 10:20 PM
#1
I have Edelbrock "shorties" on my 98' SS, would full lengths be worth it? Would it be worth my time and money to swap out my Edelbrock "shorty" headers for a set of longtubes? Can someone tell me about how much hp/tq I would see over my existing set-up? I just have bolt-ons.
08-06-2007, 12:04 PM
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I have the same question for my 6.0 L pick-up. It came with edelbrock shorties. I smoked a honda civic the other night. It has a suspension and body lift, 35/12.50/17 wheels with BFG all terrian tires and most basic mods. I blew the doors off the stupid POS civic. It had blue neon gauges and lights. My exhaust tip was right in his face since the tips are angled out to the sides. Would LTs help my truck? Or is it maxed out on power from bolt ons.
08-06-2007, 01:00 PM
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From what I've read the shorties aren't much better than the stock manifolds. I know going from stock exhaust setup to LT's and TD's you gain roughly 35 rwhp.
08-06-2007, 01:28 PM
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Originally Posted by tylerdj
From what I've read the shorties aren't much better than the stock manifolds. I know going from stock exhaust setup to LT's and TD's you gain roughly 35 rwhp.
08-06-2007, 01:42 PM
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Originally Posted by tylerdj
From what I've read the shorties aren't much better than the stock manifolds. I know going from stock exhaust setup to LT's and TD's you gain roughly 35 rwhp.
Definitely agree. Shorties are really just a waste in my opinion. Expect between 25-35rwhp.
08-06-2007, 02:14 PM
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Originally Posted by Medic/Z28
Truck came with the shorties. I would have done LTs too, but since they're on there. I'm kinda wondering if I should just redo the exhaust...
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08-06-2007, 02:43 PM
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well in the real world long tubes over stock is about 20 rwhp (i think you need tune to see that) . your shorties are probably worth maybe 5 hp on a 98-2000. 01&02 have better manifolds (almost as good as shorties) so i believe you would gain 15 over shorties. tpis claims 20, a dynatech mag article says 20 hp / 13 tq. i do not believe any claims of 35hp unless youve got a dyno thats very generous. (unrealistic). just my 2 cents. dyno before and after then we will settle this.
08-06-2007, 02:58 PM
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Originally Posted by DANOZ28
i do not believe any claims of 35hp unless youve got a dyno thats very generous. (unrealistic).
08-07-2007, 12:27 PM
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hello slade x did you run those dyno numbers on the same dyno? 306 to 349? wow i've got more done to my car and i have lower torque #s than you. i'm guessing you had a very generous dyno. dont be dissappointed if you try another dyno that gives you much lower numbers. just my 2 cents we have a dyno HI TECH / anoka mn. that has numbers 20-25 higher than everybody else. i have not run my car there because i want real numbers.
08-07-2007, 10:38 PM
#16
Originally Posted by HAZ-Matt
I thought the exhaust manifolds were revised for MY2000...
IMO, may be better to look for a H/C package that works with stock manifolds and cats, like the CheaTR. But I don't have to pass emissions in my Zip code...
