Which Spacer Should I Get!
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From: Louisville, KY (relocated from Brooklyn, NY)
Not to try to hijack this thread, but I have a similar question...
Would I get better HP/torque gains for daily street driving with the Motordyne 5/16" Copper ISO Thermal Spacer, or would I do better spending a bit more for a Crawford or APS intake plenum? (I'm not concerned that I can't use the stock engine cover with the Crawford or APS plenum).
Would I get better HP/torque gains for daily street driving with the Motordyne 5/16" Copper ISO Thermal Spacer, or would I do better spending a bit more for a Crawford or APS intake plenum? (I'm not concerned that I can't use the stock engine cover with the Crawford or APS plenum).
Last edited by DocJohn; Nov 2, 2006 at 03:53 PM.
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From: Gaithersburg
track your car?
Originally Posted by aHero4Eternity
unless you plan on tracking your car then get the 5/16
it lets you keep the engine cover and will yield gains throughout
whereas the 1/2 wont let you use the engine cover and may rob you some down low but youll gain it all back and more up top
the difference in gains is really not all that much imo
unless you track your car then i guess thats when every bit counts
it lets you keep the engine cover and will yield gains throughout
whereas the 1/2 wont let you use the engine cover and may rob you some down low but youll gain it all back and more up top
the difference in gains is really not all that much imo
unless you track your car then i guess thats when every bit counts
Who says "track your car" and does that even make sense? I was up in the mountains with some buddies doing some touge and some dude in his turbo VW asked us if we wanted to "burn". I think "track your car" is even worse. lol
Evil Bastard
Joined: Mar 2005
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From: Columbus/Cleveland
Originally Posted by b00stedjustin
Who says "track your car" and does that even make sense? I was up in the mountains with some buddies doing some touge and some dude in his turbo VW asked us if we wanted to "burn". I think "track your car" is even worse. lol
Yarly cause driving at your limits at a safe and closed performance track is just sooooo lame! especially when compared to the thrill of barely passable driving on public roads at a nearby set of twisties.
And when you were "doing" that touge, what positions did you do it in? And did you make it come? Cause touges are notorious for faking it.
Former G35driver Vendor
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From: Los Angeles California
Hi Guys,
Sorry for any confusion. Its bound to happen with so many options, but then again, the options are to help optimize for your specific application.
All of them can be used for hot or cold weather but if you live where it gets really cold, the copper has the greatest performance benefit.
If you live in Florida, TX, California or any similar place where it is warm most of the time, you can use the regular Iso Thermal and get the same thermal benefits as the copper. But as soon as it gets freezing cold you must turn on the CCV.
If your objective is to minimize cost and mazimize ease of installation, get the basic spacer.
...That's basically the different Iso catagories.
For spacer size, yes, the dyno plots say it all. There is never a loss of power anywhere on the curve, but the 5/16" gives a little more TQ and the 1/2" gives a little more HP.
One other notable difference is in the sound. You can hear both of them, but the 1/2" spacer is clearly deeper and louder. (this may or may not matter to some)
Last but not least, The 1/2" spacer fits with the engine cover on the Sedan, but NOT on the Coup.
Let me know if you have any questions!
Tony
Sorry for any confusion. Its bound to happen with so many options, but then again, the options are to help optimize for your specific application.
All of them can be used for hot or cold weather but if you live where it gets really cold, the copper has the greatest performance benefit.
If you live in Florida, TX, California or any similar place where it is warm most of the time, you can use the regular Iso Thermal and get the same thermal benefits as the copper. But as soon as it gets freezing cold you must turn on the CCV.
If your objective is to minimize cost and mazimize ease of installation, get the basic spacer.
...That's basically the different Iso catagories.
For spacer size, yes, the dyno plots say it all. There is never a loss of power anywhere on the curve, but the 5/16" gives a little more TQ and the 1/2" gives a little more HP.
One other notable difference is in the sound. You can hear both of them, but the 1/2" spacer is clearly deeper and louder. (this may or may not matter to some)
Last but not least, The 1/2" spacer fits with the engine cover on the Sedan, but NOT on the Coup.
Let me know if you have any questions!
Tony
Last edited by Hydrazine; Nov 3, 2006 at 08:02 PM.
Last week I installed the Motordyne 5/16" isothermal. Piece of cake. Make sure to follow the directions and get a good torque wrench. Don't notice to much at the bottom end, but mid range to the top is much more noticable.
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