chadz34 Posted March 31, 2012 Report Share Posted March 31, 2012 http://www.cheetahonline.com/products-page/chevrolet/chevrolet-3-4l-dohc-intake-spacer-3/ Thoughts? Supposed to add straighter air velocity. I was gonna change the spark plugs in the LS with E3 plugs and while replacing gaskets I see that this thicker one is available, mind you, at 100$ isnt cheap. Quote Link to comment Share on other sites More sharing options...
94 olds vert Posted March 31, 2012 Report Share Posted March 31, 2012 Interesting I wonder what kind of real world figures it's capable of adding. Would you need longer bolts for the plenum? I think 100 dollars doesn't seem bad at all depending on what kinda of performance this item puts out/adds to the DOHC. Quote Link to comment Share on other sites More sharing options...
chadz34 Posted March 31, 2012 Author Report Share Posted March 31, 2012 Its tough enough to find ANY parts for this engine to increase performance. And, great question about plenum bolts, as it doesnt specify it needs new ones. Quote Link to comment Share on other sites More sharing options...
chadz34 Posted March 31, 2012 Author Report Share Posted March 31, 2012 BTW this LQ1 just got two stainless Magnaflow mufflers in place of the cherrybomb glasspacks. Its ALOT quieter and CLEANER! Clips up soon, best sounding LQ1 I've heard. Quote Link to comment Share on other sites More sharing options...
94 olds vert Posted March 31, 2012 Report Share Posted March 31, 2012 BTW this LQ1 just got two stainless Magnaflow mufflers in place of the cherrybomb glasspacks. Its ALOT quieter and CLEANER! Clips up soon, best sounding LQ1 I've heard. Nice I have the same mufflers on my LQ1. I love the way my car sounds. Looking forward to hearing a sound clip. Quote Link to comment Share on other sites More sharing options...
chadz34 Posted March 31, 2012 Author Report Share Posted March 31, 2012 I may do one when I'm done work today, provided its not too windy. We need the most outstanding quality video we can get Quote Link to comment Share on other sites More sharing options...
RobertISaar Posted March 31, 2012 Report Share Posted March 31, 2012 Mark (D.O.H.C) was trying to sell the same thing recently IIRC... couple of issues with the description: it does NOT add volume to the plenum, the plenum is the common are where all cylinders draw from, it adds volume to the runner. and all things being equal, longer runners help low RPM power, not high RPM. http://mysite.verizon.net/vzezeqah/sitebuildercontent/sitebuilderfiles/inductionsystems.pdf read that and you'll see why messing with runner volume and length can be a very bad idea. if you do everything right, you can see improvements, but a plastic spacer is not some magic piece of technology, otherwise all of the OEMs would be using them. Quote Link to comment Share on other sites More sharing options...
jman093 Posted March 31, 2012 Report Share Posted March 31, 2012 Yeah, I have a hard time believing this engine needs even longer runners/plenum than it already has. And 1 inch is really freaking thick. There may be clearance issues with the hood if used with the better 96-97 intakes, I'm not sure about the earlier ones. It definitely won't clear a strut tower brace. Quote Link to comment Share on other sites More sharing options...
AWeb80 Posted March 31, 2012 Report Share Posted March 31, 2012 I'd like to see it done on a dyno....stock vs spacer, back to back runs to see if it does anything Quote Link to comment Share on other sites More sharing options...
patgizz Posted March 31, 2012 Report Share Posted March 31, 2012 so here is what they don't tell you you need new bolts will the egr tube stretch out an extra inch? i doubt it from all the LQ1 experience i have. you need a longer hose for the coolant line that runs up to the throttle body no way it'll clear a STB, hood clearance will be darn close and could rub the insulation intake plumbing will also need addressed, probably have to move the airbox up or get a WAI or CAI that's just what i can think of right now. for probably 0hp gain and maybe moving the torque peak down a tiny bit. Quote Link to comment Share on other sites More sharing options...
Schurkey Posted April 1, 2012 Report Share Posted April 1, 2012 (edited) ...AND the upper intake support brackets from rear cam carrier to upper intake will be too short. Will have to extend. Failure to support rear of upper intake will over-stress the upper-to-lower intake fasteners (specifically, the aluminum threads in the lower manifold.) $100 for this is GROSSLY overpriced. Must be about a 300% profit margin. Description sounds like it was engineered by high school students. The sort of high school students that get put in vocational courses, not the sort that take AP classes. No, thanks. I'll pass. Edited April 1, 2012 by Schurkey Quote Link to comment Share on other sites More sharing options...
Galaxie500XL Posted April 1, 2012 Report Share Posted April 1, 2012 I might be misreading your question...but why would you have to replace gaskets because you're replacing spark plugs? On 95 and older LQ1's, it's not necessary to remove the plenum to change plugs...96-97, though, it is... http://www.cheetahonline.com/products-page/chevrolet/chevrolet-3-4l-dohc-intake-spacer-3/ Thoughts? Supposed to add straighter air velocity. I was gonna change the spark plugs in the LS with E3 plugs and while replacing gaskets I see that this thicker one is available, mind you, at 100$ isnt cheap. Quote Link to comment Share on other sites More sharing options...
chadz34 Posted April 1, 2012 Author Report Share Posted April 1, 2012 I might be misreading your question...but why would you have to replace gaskets because you're replacing spark plugs? On 95 and older LQ1's, it's not necessary to remove the plenum to change plugs...96-97, though, it is... Yeah, you must remove the plenum on 96-97 DOHC engines, and because the gaskets are thin rubber and paper style, I always just replace them because theyre cheap. Gives me easier peace of mind after I have everything back together. I bought a bunch in bulk from the auto parts store. E3 plugs are next for this motor, I have run of the mill AC Delco plugs in it now, and theyve been in there for a while. Going to pull the front 3 out and look at them, going to try E3 plugs. As for this spacer, I think we can all agree, its not a good idea but I figured I'd post about it, because aftermarket for LQ1 is minimal and any new part I find, I do get a hard on for. Quote Link to comment Share on other sites More sharing options...
jman093 Posted April 1, 2012 Report Share Posted April 1, 2012 Yeah, you must remove the plenum on 96-97 DOHC engines, and because the gaskets are thin rubber and paper style, I always just replace them because theyre cheap. Gives me easier peace of mind after I have everything back together. I bought a bunch in bulk from the auto parts store. E3 plugs are next for this motor, I have run of the mill AC Delco plugs in it now, and theyve been in there for a while. Going to pull the front 3 out and look at them, going to try E3 plugs. As for this spacer, I think we can all agree, its not a good idea but I figured I'd post about it, because aftermarket for LQ1 is minimal and any new part I find, I do get a hard on for. Just stick with the ACDelcos. You aren't going to find anything better. And if the correct ones were installed in your 96, it is a platinum plug. Change interval is 100,000 miles. Quote Link to comment Share on other sites More sharing options...
gpchris Posted April 8, 2012 Report Share Posted April 8, 2012 (edited) I ain't buying it. There is no way 1 inch higher will clear the hood. And like somebody else said you would probably crack that tin foil excuse they call an egr tube. Plus the runners have got to be over a foot long per cylinder already. I think that's more than enough to help even the power band. Edited April 8, 2012 by gpchris Quote Link to comment Share on other sites More sharing options...
Vegeta Posted April 16, 2012 Report Share Posted April 16, 2012 Ill stick to iridium and stock gaskets. Quote Link to comment Share on other sites More sharing options...
z34Phoenix Posted April 23, 2012 Report Share Posted April 23, 2012 when i had my LQ1 it did not run well at all on iridium plugs... that aside, this will not work on a 96-97 Lq1 as the ports are all inline on them.. these are staggered as in the 95 and older lq1's. the 96+ did have longer runners. this could be the idea behind this spacer. as for hood clearance... on my 96 i had a STB that was more then 1" tall that sat above my UIM and it cleared the hood fine. now is it worth $100? i'd say just swap to a 96-97 intake setup and call it a day. Quote Link to comment Share on other sites More sharing options...
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