Welcome to Ultimate Subaru Message Board, my lurker friend!
|Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.
We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!
Serving the Subaru Community since May 18th, 1998!
Anyone interested in EA-81 HI-PO rebuild kit?
Posted 07 August 2003 - 02:06 AM
The high performance kit would include 2-cylinder heads, 1-intake manifold, 8-valve lifters, 1-reground high performance cam shaft.
the cyllinder heads intake ports are opened up another 1/8" using a tapered reamer, as is the intake manifold reamed inside as well, and then rotary filed, and smoothed. The flow is incredibly better, as the car reaches max hp faster, and the hp are increased significantly. The crazy thing about it, Is that this guy in Canada is willing to let the kits go for cheap, like $600. The cool thing is, our stock carbs would still bolt up, which means so would the Smog shiot, so we could potentially have street legal ea81's with 110+ hp!
whaddya guys think?
Posted 07 August 2003 - 04:58 AM
Posted 07 August 2003 - 07:18 AM
Posted 07 August 2003 - 09:58 AM
Posted 07 August 2003 - 10:02 AM
Posted 07 August 2003 - 10:30 AM
First, HP is not torque. If you want a topend racer than High horse power is the answer. If you want an off road climber than HP is not the answer. HP comes in later in the power band. Torque comes in much sooner. All the engine builders for the ultralights need high HP for high RPMs.
Second, that sounds like a decent price. Will it come with gaskets and everything needed to install it?
Posted 07 August 2003 - 10:36 AM
Posted 07 August 2003 - 11:47 AM
$600 sounds like a screamin deal for the complete package. Is this guy willing to take a core and do the same mod's to them? I want to get a set of EA81T heads with the MPFI boss's and have that same work done, then do the CIS conversion to the EA81.
Does this guy expect a certain amount of pre-orders and a huge down payment? Or is he willing to make kits to order??
Posted 07 August 2003 - 12:30 PM
this kit should be tested on a <span style="text-decoration:underline">vehicle</span> to see if it has negative effects (this stuff is made for planes not cars)
also what do you think of how a webber 38 would work with this? the main problem with the 38 is that the manifold won't flow enough to benifit from it over the 32/36. how much more does it flow?
why not open the exhaust ports too?
other than that it sounds good.
maybe add some other sutff to this set? 1.6L pistons, FWD distributer, 170 or 180 thermostat?
Posted 07 August 2003 - 12:38 PM
Q- You are absolutely correct about the torque/hp thing. The 110hp would kickin later at about 4000rpm +/- 500. But what will be beneficial to the off-road clan, is the incredibly improved breathability of the motor. I've been out playing in the mud plenty of times, and I know you hate that initial bog in first gear that makes you stall when you're trying to climb out of or over something. With the intake mani opened up a bit, as well as the heads, you will feel immediate throttle, which means accessing the low-end torque on demand. It wont feel as much like a snotty-nosed kid trying to play the trumpet.
Brian- another idea, is that this guy not hell bent on copyrights or anythig like that, he's willing to share info on how exactly these gains are acheived, so we can make this info avalable for us, too. There's another site that I found, that I posted on here before that tells about how to maximize the performance of an EA-81, which tells exactly how to do up the heads for increased performance, which i'm sure you can apply to the turb heads...the site is: www.jodel.com
you gotta go under engines/Subaru2
I'll keep you guys updated on this, and see what's up on the parts core
Posted 07 August 2003 - 02:52 PM
Posted 07 August 2003 - 03:20 PM
Posted 07 August 2003 - 03:23 PM
I do know that there are some planetary/spur reduction kits that they use between engine to propeller, just not sure if there is a possiblilty of using those for automotive purposes....
Posted 07 August 2003 - 05:54 PM
For off-road use... if you have your car propperly tuned, you can do almost anything. My stock EA81 in my wagon, when tuned propperly, will follow anyone with a weber. If you have the timing just right, and everything set just right then you shouldn't have any dead spot on takeoff. Increased compression, and increased exhaust flow will do the job, coupled with a Weber and that is almost all you need for off-roading. For extreme angles, EFI is the way to go.
Posted 07 August 2003 - 05:59 PM
Posted 07 August 2003 - 06:09 PM
any word on roller rockers?
Posted 07 August 2003 - 06:25 PM
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users