My Painted/Ported 88mm LS6 Intake
04-18-2009, 04:19 PM
#1
My Painted/Ported 88mm LS6 Intake Well I decided since I wasn't planning on spraying nitrous anytime soon to sell my ported 85mm aluminum weiand intake and try to find a used FAST 78 and modify it to 85mm since I already had a ported 85mm TB at the same time I began thinking that the same could be done with a LS6 intake since they flow good with stock ported TB's and the TPIS 90mm ones seem to work good but after looking at a few pics of LS6 intakes they didn't have alot of material around the opening so I made a thread asking if anyone else has done it before https://ls1tech.com/forums/generatio...-question.html so I would like to thank LS1-450 and the other's for encouraging me to do this mod. I don't really think that porting the runners is needed or know how much it helps but since I have a custom grind cam that will probably need to spin to 6800 or so I decided to do a little porting on them any way
I didnt want to do anything to wild on the runners because of the thin material and stock heads I might do more porting to runners if I ever decide to do the heads later on so I hope this intake gains me some ponies over my weiand even though I never had any problems with heatsoak like many seem to think but if not being almost 20lbs lighter is an added bonus anyway since I don't know how/feel like posting pics here's a link to my ported/painted 88mm LS6 intake. Thanks.
http://s404.photobucket.com/albums/pp127/jasonbw1985/
I didnt want to do anything to wild on the runners because of the thin material and stock heads I might do more porting to runners if I ever decide to do the heads later on so I hope this intake gains me some ponies over my weiand even though I never had any problems with heatsoak like many seem to think but if not being almost 20lbs lighter is an added bonus anyway since I don't know how/feel like posting pics here's a link to my ported/painted 88mm LS6 intake. Thanks.http://s404.photobucket.com/albums/pp127/jasonbw1985/
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04-20-2009, 03:33 PM
#8
I see no advantage to this, it still necks down inside to 76mm. It is like putting a 80mm throttle body on a stock LS6, you still have a restriction of airflow. To gain anything you would have to open up the entire passage all the way into the plenum.
04-20-2009, 04:59 PM
#9
04-20-2009, 07:46 PM
#11
04-20-2009, 08:54 PM
#12
the only way to flow more air though the same size orifice is to make the path before the orifice like a smooth tapered funnel...(similiar to a tornado)...this is the best shape for flowing air...
i have tested and know...so if that is what he mimicked in his porting i will agree it will help slightly...it would be much better if the whole intake opening was 88mm though...what does the intake neck down to...and what size was it at stock...
i have tested and know...so if that is what he mimicked in his porting i will agree it will help slightly...it would be much better if the whole intake opening was 88mm though...what does the intake neck down to...and what size was it at stock...
04-20-2009, 10:25 PM
#13
the only way to flow more air though the same size orifice is to make the path before the orifice like a smooth tapered funnel...(similiar to a tornado)...this is the best shape for flowing air...
i have tested and know...so if that is what he mimicked in his porting i will agree it will help slightly...it would be much better if the whole intake opening was 88mm though...what does the intake neck down to...and what size was it at stock...
i have tested and know...so if that is what he mimicked in his porting i will agree it will help slightly...it would be much better if the whole intake opening was 88mm though...what does the intake neck down to...and what size was it at stock...
I'm not gonna do this defending measured data against theoretical opinion again...
He made the change after I tested & have been running the same moded intake for some time now. Tested against a straight through 88mm. Test results are in several related threads where MAF & MAP were measured. It works & it works very well. I wasn't ever gonna even reveal how the intake was modded until the results prompted several PM's.
Anyone who wants to argue the point needs to present measured data, not theory. As stated, I'm done arguing the point. The test results prove themselves. If the results aren't enough for those interested, then spend the time & money to test the exact modification yourself or simply don't make the change.
04-21-2009, 12:49 AM
#14
Well guys this is just one of those custom mods that made sense to me just think about it Ls6 intakes are good intakes untouched so opening the mouth of it and providing more flow makes it even better and yes it does funnel/taper down but I ported the entire opening not just at the begining so alot of material was removed from the entire opening even the smallest part of the opening has to be atleast 80mm if not a tad bigger so it does funnel down but no to the stock opening and even if it did LS1-450's testing shows that it still works great this is one of those mods that only a few people have tried because they are afraid of it but me and the few other's who have done it put one and two together and were willing to try it out and are happy with the out come I just wanted to show people that it could be done and its just another option LS1-450 couldn't have put it any better if you think its worthless just don't try it leave it stock or try something else. Again i'm not trying stir up anything there's nothing wrong with having opinions and question are never a bad thing to ask but don't knock it unless you have tried it or have proof that its worthless.
04-21-2009, 06:52 AM
#15
Well guys this is just one of those custom mods that made sense to me just think about it Ls6 intakes are good intakes untouched so opening the mouth of it and providing more flow makes it even better and yes it does funnel/taper down but I ported the entire opening not just at the begining so alot of material was removed from the entire opening even the smallest part of the opening has to be atleast 80mm if not a tad bigger so it does funnel down but no to the stock opening and even if it did LS1-450's testing shows that it still works great this is one of those mods that only a few people have tried because they are afraid of it but me and the few other's who have done it put one and two together and were willing to try it out and are happy with the out come I just wanted to show people that it could be done and its just another option LS1-450 couldn't have put it any better if you think its worthless just don't try it leave it stock or try something else. Again i'm not trying stir up anything there's nothing wrong with having opinions and question are never a bad thing to ask but don't knock it unless you have tried it or have proof that its worthless.
