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Going to have the rear side pillar speakers done with some 6.5 Kenwoods just to complete the stereo project. Then finally throw back on the stock front splitter and call it done. For now ! Looking for a steer legal shorty & hooking up a 200 cell high flow mid pipe and some new mufflers . Should be enough to make it flow nice.without causing to much baffle. Figure why waste the money as effort on long tubes just to take them off later or risk it . When I can make a setup work that flows just as good .
Going to have the rear side pillar speakers done with some 6.5 Kenwoods just to complete the stereo project. Then finally throw back on the stock front splitter and call it done. For now ! Looking for a steer legal shorty & hooking up a 200 cell high flow mid pipe and some new mufflers . Should be enough to make it flow nice.without causing to much baffle. Figure why waste the money as effort on long tubes just to take them off later or risk it . When I can make a setup work that flows just as good .
Shorty headers with high flow cats will not flow just as good as long tubes. They will flow better than stock but you will lose power going to shorty headers.
I’d be pretty interested to see before and after dynos or data from something like the Dragy app to see just how much it will affect power.
The bbk shorty look like they should flow good with some 200 cell bullet cats. Removing the other 2 box cats then it will be new mufflers . Basically it will be a shorty a bullet cat mid cross over pipe to mufflers . Ought to flow so much better .
Last edited by Speedy007; May 20, 2020 at 05:48 PM.
Just had the car serviced fluids, rear diff 80-90 with gear additive, trans fluid redline corvette fluid Dt4 something . It’s by west cost company I think. Engine oil synthetic blend 5w30 . Normally I just run conventional but when it’s offered at a conventional price well kinda hard to refuse the better oil.
The bbk shorty look like they should flow good with some 200 cell bullet cats. Removing the other 2 box cats then it will be new mufflers . Basically it will be a shorty a bullet cat mid cross over pipe to mufflers . Ought to flow so much better .
Pretty good read there on the benefits of a long tube and how it's not simply about flow. The diameter, length and number of bends in the primary has a pretty significant effect on power output.
Thanks it was a ok read for a old school engine . However no results were reported on that article for shorty headers and the shorty header they used was most likely a hugger. Plus it’s not like my car and that car are on the same level with back pressure with 12lbs of boost.
Last edited by Speedy007; May 21, 2020 at 11:44 PM.
After losing pedal again to the clutch after this fluid service it’s looks as if someone took a second to drain out all the old clutch fluid but did not replace it. Wtf right! Glad to have caught this refilled dot 4 . Everything shifts and clutch action is as if it just rolled off new the lot . At least all new fluids through out the whole car . Had the whole 9 yards done .
Thanks it was a ok read for a old school engine . However no results were reported on that article for shorty headers and the shorty header they used was most likely a hugger. Plus it’s not like my car and that car are on the same level with back pressure with 12lbs of boost.
"In our testing, equal-length shorty headers offered no power gains over their un-equal counterpart, and it wasn't the tubing size that limited the power production of the shorty headers. The long-tube headers offered dramatic power gains not because they flowed more, but because they offered the scavenging affect that improved cylinder filling. How else do you account for the big torque gains at the lower engine speeds, where maximum flow is less important?" This is taken from the fifth paragraph of the article. It also shows pictures of the headers and they are not "huggers."
I don't see how the age of the engine has anything to do with the design of the exhaust manifolds but ok. The physics behind exhaust manifold design doesn't really change if you slap a blower on the car, you still receive more benefit from scavenging using long tubes than you do using shortys.
I say depending on the set up shorty can flow just as good . I’ll be out to prove that 1 because I have a California car that must stay emission legal. Car already makes a ton of power if this gets me another 10 -15 it’s a improvement. We again are not comparing a 1970’s gas hog Carb to a fuel injection 5.7 ls motor with boost . Flow directions don’t change obviously the dynamics do. Plus a older shorty isn’t a corvette comparison. In order for there to be a valid test is a valid starting point. I happen to have and always had stock exhaust manifold on the car. Any felt performance there after will be virtual dyno like always . Anything that isn’t power related but if reduced engine noise Ect I be happy to provide feedback. Rather then debate about hot rod mag what their opinion is on 1 year specific engine. I build custom hot rod cars and the key word here is custom.
But next update goes in when these kenwoods arrive for the rear door pillars & the bumper saver wheels for the skid. Then I’ll move on to the 2 din by corvette mods. Then last but not least all seat foams . Napa leather original seat covers and air bladders new both sides. Replace new pass window switch just to match the driver new led switch.
Last edited by Speedy007; May 22, 2020 at 02:24 PM.
At lower engine rpm, long tubes help maintain good exhaust scavenging and increase torque output. As engine speed increases, exhaust gas velocities increase and a shorter tube length tends to work better. The best you can do is find a header tube length that offers the best compromise between low and high end .
Scavenging is a delicate process to control inside the engine. It requires that the intake system, cylinder heads, and exhaust system all be matched to optimize airflow.
Meaning a custom build is required to match your builds air flow needs. Weld up your vara to that grind’n gears lol
Last edited by Speedy007; May 22, 2020 at 03:47 PM.
just weld a vararam to that bitch, scavenging for days
I need help to fit my 100mm ls9 card lsx maf onto the vara then to the inner cooler suggestions ? I’ve been struggling to attach it ! Everyone seems to want to take out the vara and run a bigger aluminum pipe not happening. It’s the original vara from way back !
Last edited by Speedy007; May 22, 2020 at 08:14 PM.
It is in SD . I was told by the tuner car will not run if I switch the maf out .
Was the cat ever in the bag ?
Switching out the vara for a afe stage 2 this will allow the bigger maf to fit. getting the measurements it should work just dandy ! I. I bet it moves more air also.
Last edited by Speedy007; May 23, 2020 at 11:07 AM.
I bought it mostly to clean up engine bay with a different style . Plus it’s carb legal . Also the pipe is 4 or 4.5 . I found this item stored away by someone in
the box never put on, again it’s one of the 1st to has come out. It should increase air volume in the plenum line.
Vara passed with a little paint but I rather keep it away given vara does not make this style of plenum no longer. It’s one of the 1st . They are shaped a bit different from the current design. It ought to be worth double if I ever go to sell so if the plenum is 100 now I’ll ask 200 for mine given it’s rarity. Maybe 250 when that day comes.
Also coming shall be the Equalizer oh..those things are beefy. Plus the 102 mm electric throttle body . Can’t wait super exited . Awaiting the clutch to get fixed then back at it .
Does anyone have a suggestion where I can send the stock Intake out for repair on that back valve port the circle thing needs replacement.
AFE intake came in today I got to say it’s pretty nice and a great deal as well. Hooked up nicely to the lsx 100mm maf . All solid black love it. Awaiting a Tilton clutch slave cylinder actuator for the row out bearing. As I the new gm ls7 z06 cylinder blew apart in the braided line or at the neck. Waiting for parts to start tearing it down for the 2nd time in less then a month and it sucks. But this go around will be a little different. With a tick adjustable master cylinder as well . Figured f**** it . Ordered a 48 inch speed bleeder as well . New reservoir tank . Taking off the old intake putting on a new fast LSXR 102 . Taking off the stock rails adding the fast 102 rail set up they look stock but more beefy. Coolant steam vent relocation kit to fit the intake without hassle. New fast intake cathedral port seal to match the intake as I don’t think fast is providing them with the intake . Again I got the intake at a huge discount through a branded speed shop new. Map sensor relocation extension harness 28 inch to the front . Think I must must drill and tap new Harley Davidson map sensor seal got a pack of ten . Map sensor clamp kit . Intake 4 bolt to 3 bolt throttle body for the moment or I just might buy the nick Williams with the adapter unsure still. Either the adapter was 39 bucks not bad . New knocks sensors from gm with harness . It should be good to go after with no issue other then a little tune adjustments. I’ll prob end up buy the 102 electric throttle body and adapter and sending back the adapter as I continue to think about it.
Why would you not put your maf in there and hooked up ? It looks functional. It’s surly got u doubted if the car is in SD lol and that’s the way I like to keep it looking stock and carb compliant. It’s just a little 346. Doesn’t do more the a buck
Why would you not put your maf in there and hooked up ? It looks functional. It’s surly got u doubted if the car is in SD lol and that’s the way I like to keep it looking stock and carb compliant. It’s just a little 346. Doesn’t do more the a buck
Is it possible to make the MAF monitor show "ready" when it's a SD tune? That's what's going to matter for a smog.
"Looking CARB compliant" is not a thing...trust me. If it goes to the state ref, they're not gonna give a heck what it "looks like"....and you're going to have some fun on your hands having to get it all back to something ACTUALLY CARB compliant. The further you stray from CARB compliant, the more work you're going to have to do to get it back. Hopefully you never have to go through that.