Exospeed Stage 2 Z6 Head - D-series.org

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Old 12-20-2004, 05:06 AM   #1 (permalink)
jb2178
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Thumbs up Exospeed Stage 2 Z6 Head

With valves and camshaft option.

For those of you who haven't followed my attempt at being a mechanic here's a brief rundown of the last 4 months.

Ordered a Stage 2 head w/ camshaft which I recieved in september. I attempted the swap on my own and ended up bending a valve - so I swapped the old head back on and took the exo head to a local shop. I ordered a set of stainless steal valves from exo and had a valve job done on the head and had it installed.

Well I got the car back last Tuesday and was breaking in the head by keeping it under 4000 for 400 miles. While breaking it in I noticed my idle is high while the engine is cold (around 2K) but once the engine warms up it drops back to 700-800. The next thing I noticed was the extra noise coming from the head, it's definatly not stock and you can tell even at idle, the valves are just clapping shut a lot faster then stock. Well it was very difficult to put the 400 miles on it and I will admit takign it to 5000 twice but other then that I was good to it.

So yesterday we took a trip to Orlando and when I woke up this morning I had 414 miles on the engine so I got to run it on the way to work this morning and boy is it something else. First of all the additional power is most noticable from 5000-7000 rpms, I'm sure some dyno tuning and an adjustable cam will help raise the power output on the high end but I really like the extra pull you get across the whole power band. Once the vtec kicks in the new head sounds more like a B16 then a D and I still have the stock exhaust on. It just gets LOUD but it's a good loud because it's not some gay raspy exhaust note - it's the engine making the noise Very Very pleased with the end result - once we get moved I plan on picking up a cam and maybe Intake Manifold and getting it dyno'd. Now I can officially say Exospeed is a great company that does great work!

Also I put on the Konig Heliums on thusday and I'm quite happy with that little christmas present too - I'll put some picks of the wheels up this afternoon when I get home...

Engine Head Thread
https://www.d-series.org/forums/showthread.php?t=12023

Helium Thread
https://www.d-series.org/forums/showthread.php?t=14037
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Old 12-20-2004, 05:21 AM   #2 (permalink)
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sounds nice !! GET 2 A DYNO ASAP !!!
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Setup on Z6 :
SMSP header, Arias 11.5 pistons, eagle rods, edelbrock IM, 60mm TB, Crower springs/ti. retainer, AKMEE Type R Cam, Crower cam gear, Hondata.
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Old 12-20-2004, 06:59 AM   #3 (permalink)
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Good review, glad exo's parts are working out for you. ^^^^ ditto about the dyno.
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Old 12-20-2004, 01:43 PM   #4 (permalink)
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how long was the time it took from the day you sent them your head...so you got it ported/polished, springs retainers originally and now you have vavles and stock cam?

jeez dude im dieing to buy a exospeed head...roughly $1300? good luck with that and im dieing to see a dynochart
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Old 12-20-2004, 03:44 PM   #5 (permalink)
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one more thing may i ask how you bent a valve? we may have jsut made the same mistake you did on installing a head except me and my buddy have done a couple motor builds and never ran into this...curious to whats going on heh
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Old 12-21-2004, 05:48 AM   #6 (permalink)
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the head originally came w/ PnP/Springs/Retainers/Street SV Cam

I tried installing it myself as a way to learn more about car/mechanic work but my timing was all off - and I didn't double check before starting... and then whack - compression test told me what happened (but I did successfully swap my old head back on - at least I didn't fuck it up twice ) so I took the head to the local shop after I picked up a set of stainless steel valves from exo - it took them about a week to get the head back from the machine shop which did the valve job and then it was about another week before I got my car back - while they were installing the head my distributer went out and they had to replace it to... the large gap in time from september till now is due to me and the wife moving to RI so there was about a month where I was deciding what I wanted to do about fixing my goof up...

but I highly recommend an exo head - I want to get it to a dyno but I have to move first so I'll let you know the results once I run it to a shop up there...
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Old 12-21-2004, 05:52 AM   #7 (permalink)
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oh - about the price - I paid them just over 1300 but 250 of that was the core charge which I am getting back - I found a special price they had posted on honda-tech which saved me about $260 off their list price...
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Old 12-21-2004, 08:47 AM   #8 (permalink)
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how much did it all cost you?
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Old 12-21-2004, 09:00 AM   #9 (permalink)
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eww - an arm and a leg... the valve job was $250 - the distributer (used) was $200 (better then honda's $800 for a new one) - all the labor cost me about $600 and I spent another $100 on the gasket set - the shop I took it to is pricey but they do great work (super charging M3 Coupes, rebuilding Audi S4 engines, etc...) so I paid more then I probably needed to but after my initial screw up I needed it done right...
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Old 12-21-2004, 12:19 PM   #10 (permalink)
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You gotta pay for experience on way or another....time, frustration, or money. They all suck to give away.
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Old 12-23-2004, 08:28 AM   #11 (permalink)
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sounds like a good setup though.
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