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View Full Version : GheyrodX - bigger, fatter, gheyer!


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goodhart
12-09-2012, 11:03 AM
Tell Kevin or Calvin to get that shit up on the database!

Kracka
12-09-2012, 11:37 AM
I'm hoping Kevin gets it up tomorrow.

I just got back from a pretty good drive and the car really does rip and pulls hard all the way to rev-limiter! It drives really smooth throughout the RPM range, I'm giving thanks to the anti-surge for that. I would like to get a touch of response and spool back though, so I'm thinking it would be ideal to give up a bit of that smoothness in the name of response and swap over to the standard cover. I'm questioning whether this turbo actually needs the anti-surge ports.

scheides
12-09-2012, 01:35 PM
So what size is the comp wheel?

It's the EF3's compressor wheel.

Yea, probably ~56mm compressor about the size of an FP Red.

My BBX had a stock compressor cover on it and was even bigger than this compressor setup so going back to a non-antisurge should work just fine. You have mivec to take away any surge that might 'just happen' from the conversion. Should add another 1-2% everywhere powerwise so you might just hit 430 :)

Honestly I'm a tish skeptical if it will really help down low though but I really don't think it will hurt to try.

awd-drifter
12-10-2012, 08:24 AM
That kind of power on stock cams and pump is very amazing. Very nice!

Kracka
12-11-2012, 11:26 AM
http://accessecu.com/dyno/graph.php?gb=0&hp=1&torque=1&boost=1&rpm=1&sl=1&sln=1&sat=0&cb=0&dgr=1&smm=0&sg=1&runid1=4008&rgb1=000000255&runid2=4152&rgb2=204000000

Tachyon
12-11-2012, 11:52 AM
Looks like it needs more boost thrown at it to better illustrate the difference.

93gtpeater
12-11-2012, 01:27 PM
Look like the ef2 is better. The spool up doesnt look all that great on the 2.5

Kracka
12-11-2012, 01:33 PM
I'm discussing with MAP and we have a few ideas on changes to try. This is why it's called prototype testing I suppose :D

Murlo26
12-11-2012, 01:34 PM
Yea I agree, for the "ultimate street turbo" you are after Kracka I don't see the advantage with the 2.5. Hell, my EF4 is only about 200rpms behind your turbo up to 27psi and I am not even on full mivec (obviously totally different setups, but still).

EF2 ftw on your car. /pray new cover helps.

Super Bleeder!!
12-11-2012, 01:41 PM
Hughes you should run that thing down the 1/4 mile someday. I don't really care about the ET but i'm curious as to what sort of trap speeds it would pull.