Guest kc6wfs Posted December 28, 2001 Share Posted December 28, 2001 I was shocked to read on Sallee web page that you loose 60HP when using block hugger headers. Could this be true? If so what make and model number of full size headers will fit a 240Z/350? Thanks. Dave Quote Link to comment Share on other sites More sharing options...
Ray Posted December 28, 2001 Share Posted December 28, 2001 I looked arround on the Sallee site where did you see this refference ???? Quote Link to comment Share on other sites More sharing options...
Guest kc6wfs Posted December 28, 2001 Share Posted December 28, 2001 Hi Ray, It was a post last week from Scott on the board over there. Click to view posts from last week and click on the message named below. Sallee 325 horse engine from '97 ________________________________ Thanks. Dave Quote Link to comment Share on other sites More sharing options...
Guest kc6wfs Posted December 28, 2001 Share Posted December 28, 2001 I just re-read there post and they were talking about the "Rams Horn" exhaust. Are the blockhuggers much better flowing then those? Sry and thanks. Dave Quote Link to comment Share on other sites More sharing options...
Guest Drewz Posted December 28, 2001 Share Posted December 28, 2001 Depending on how wild the engine is the header can make quite a difference as almost every major magazine has done some sort of dyno testing with various headers and found the block hugger style the most restrictive but the easiest to install. They, for the most part, were are all done with a dyno so HP was accounted for and more was found with long tube. I only use dyno results or 1/4 mile time tests to go by since the seat of the pants test carries no merit for me. If you don't have a 450+ HP engine than it prob. doesn't matter or if this is a street vehicle than, like mine, huggers are fine. Its like comparing a tunnel ram to a single plane high riser. It depends on the use and the requirements, right???? Quote Link to comment Share on other sites More sharing options...
Guest Drewz Posted December 29, 2001 Share Posted December 29, 2001 Block huggers do flow much better than cast ram horns. Nothing flows like long tubes though. I am using block huggers by headman and buzz my motor real well with a nice bump stick. I will not competitively race so the point is mute for me 4 now anyways!! Quote Link to comment Share on other sites More sharing options...
Tim240z Posted December 29, 2001 Share Posted December 29, 2001 The length of the tubes effects the torque band and not the HP levels. The main points on the block huggers which make them less attractive are: 1. unequal length primary tubes. 2. the very tight bend in the primary tubes as they exit the head . But I think that unless you are really trying to squeeze every last drop of HP out of the engine, this is not a big deal, but I think that by making the initial bends in the headers more gentle, and equaling out the length of the two middle tubes (equal with the two outers), that would make them better......but worth it...I dunno Tim Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted December 29, 2001 Share Posted December 29, 2001 Check out the thread on S&S headers. (actually there are several threads on this) They are 'full length'. Here's the most recent thread: S&S Headers thread Quote Link to comment Share on other sites More sharing options...
z ya Posted December 29, 2001 Share Posted December 29, 2001 Hotrod mag did a test motor a while back and they installed both block huggers and long tubes. The huggers lost around 30 fpt to the long tubes but were up 2 hp on the top end. If you have a light car, stick shift or low first gear auto you will not miss the extra torque. The z cars are great for huggers. Now if you had a 4000 pound car then the long tubes for sure. Quote Link to comment Share on other sites More sharing options...
z ya Posted December 29, 2001 Share Posted December 29, 2001 OPPS, I forgot to say that they were down the 30 fpt from like 2000 to 3000 . But after that things got real close. Quote Link to comment Share on other sites More sharing options...
BLKMGK Posted December 29, 2001 Share Posted December 29, 2001 60HP? On WHAT engine?! That's not right. My friend's shop has dynoed both long tubeshortys on Mustangs - guess what, almost no difference! A few HP at most on cars making a bit over 300RWHP. If it was a 60HP loss then that motor must have been a monster! Don't always believe the magazines either - they prostitute themselves to the people buying ads like you wouldn't believe. Some other interesting dyno testing: Long tube vs short tube on a DOHC Cobra. Difference? 6RWHP Cost? Over a grand installed! Was this a Honda part?! Xpipe vs H pipe. NO DIFFERENCE! Yup, sounds different but they saw no discernable difference. Torque is supposed to be enhanced, they didn't see it on the dyno. Hi-flow cats vs striaght through H-pipe. About 6RWHP. That was a back to back test too. Since they installed the dyno they've been having fun finding out hwat really works and what doesn't. It's amazing that some of the things that are gospel just don't seem to hold up in real life. Hrm, is the S&S main product line long tube or shorties? Quote Link to comment Share on other sites More sharing options...
fl327 Posted December 30, 2001 Share Posted December 30, 2001 headers, schmeders. Quote Link to comment Share on other sites More sharing options...
Guest Rick Johnson Posted March 21, 2002 Share Posted March 21, 2002 BLKMGK, It sounds like your buddy with the new dyno could be a great source of information. Keep us updated on his latest finds!!! Rick Quote Link to comment Share on other sites More sharing options...
BLKMGK Posted March 22, 2002 Share Posted March 22, 2002 He's not dynoed anything interesting lately I'm afraid. He IS getting massive power out of the new Lightnings though Now that warmer weather is getting here I'm going to try and finally get my new headers and added mufflers installed. Afterwards I may try a dyno run again to see if any power was picked up with the larger headers. I never did get moving on EFI and my secondaries still don't open so we'll see. Quote Link to comment Share on other sites More sharing options...
John Scott Posted March 22, 2002 Share Posted March 22, 2002 BLKMGK, Last I heard you returned the sanderson and were trying another brand. Sorry I couldn't find it in past posts, what headers did you end up with? Fit? JS Quote Link to comment Share on other sites More sharing options...
Guest 1fastz Posted April 21, 2002 Share Posted April 21, 2002 K mustnag vs block huger headers is a totaaly diferent story .. first the 302 is a SHORT stroke motor wich will want a smaller header tube with a shorted primary .. block huggers wont hurt HORSEPOWER verry much up top maybee 10 15 horses on a 450 horse motor buT they lose low end tourqe dramaticly.. however with our week rear ends and halfshafts and light weight thats anot a bad thing For the utmost in performance go with full lengths.. but on most street cars its just not worth the extra hassle. i can tell you now I picked up 2 tenths and 3 miles per hour going from shorty block huger 2 1/2 heaaders to full length 1 3/4 sandersons on my NINE SECOND car.. Quote Link to comment Share on other sites More sharing options...
BLKMGK Posted April 22, 2002 Share Posted April 22, 2002 2 tenths on a car already going 9s? Spraying? Umm duh, I'd expect that. Pick up 2tenths on a 13 second car and I'll be surprised. For me the hassle isn't worth it and I've seen what the Ford dyno runs show - especially for the 4.6 motors. It's not worth the HP for the hassle of install, dragging the headers on speedbumps, frying starters, and problems changing plugs. Did I mention cost? I'd have to really pick up a bunch to be interested in longtubes for my car. As for my second set of headers - these are Rewarder headers. Guys at the exhaust shop now tell me that the PASSENGER side doesn't fit. Grr! They said that it hits the block?! I'm pretty sure I test fit both sides before coating etc. so I'll try them myself in the garage. Very aggravating just to pick up some primary pipe sizing let me tell you. The Flowtechs fit great but th eprimary is small and there's a step from th eexhaust port to the header and I know that's got to be hurting me some. On a brighter note - the additional mufflers really helped. Still resonates some inside the car but the woman says it's MUCH quieter from outside and no backrap when it decells Noticed a little of what looked like gear oil on the garage floor and some oil too so I've got some looking around to do under there. Not sure where the gear oil could've come from since I've got all new seals etc. Weird! Quote Link to comment Share on other sites More sharing options...
Mikelly Posted April 23, 2002 Share Posted April 23, 2002 BLKMGK, What exactly was interfering on the Sanderson units? Which side, which model did you use, and all the gory details... Mike Quote Link to comment Share on other sites More sharing options...
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