The GX7R we are running is only about 12 tanks into its life, its still very tight and nowhere near its peak yet, but even still its tuning great and making ridiculous power... The bottom end is strong, much stronger then a V-Spec and the top end is very much like my modified C6, its absolutely snarly sounding on the top end... With the long needle it has a very smooth trigger feel and gives you great control over how much power it unleashes.. So it can be driven slow and smooth very well...... I have altered exhaust port timing and angle and volume, as well as altered boost port timing and angle, as well as angle and timing on parts of the transfer ports.... The results are awesome if I do say so myself.... I can hardly wait to up the compression and fully tune it in, hopefully the weather holds and I can knock more pinch out of it and shoot a video...this is a very impressive engine to say the least....

QUICK TUNING TIP

for all new GX and MG66 Engines

www.massivemods.com

Thats a great tuning guide Mark. I will bookmark
your tuning advice and pass it on to anyone having
any bogging, flameout or glowplug popping problems.
(ie. MM GO Engine Tuning Guide- PG.#623 - Post #9332)

Yep. I followed that with my MG66 & found it quite easy. And as said earlier, 13 minute run times with a 6.5mm restrictor & Amain C2 Blue Dot. No Flame outs. No Blown plugs. Holds the tune all day. TONNES of power. No Problems!

What more can you ask for!


Pete.

Just a quick question at what distance from the fuel inlet are you pinching the fuel line off as this will also effect the time it takes to cut out

I have 2.5 gallons on my gx7 and I took the back plate of to check out the rod play and there was no play at all. This motor is awesome.

About 1 cm ( or half an inch for imperially impared people ) in front of the fuel inlet to the HSN .

In theory pinching further away shouldnt make a difference but it may so in order to keep the tuning uniform keep it 1 cm away .

Cheers MM

can't find it on the web site

its on the main page just under the " NEW PRODUCTS FOR NOVEMBER", there's a graphic of a engine cut-a-way there...

Ya, i click on it but i can't see any Quick tuning tips

Click on the writing above the engine cutaway pic,
the writing says "New GX and MG66 Tuning Guide".
If you can't find that, you'll never be able to find a
tune. j/k

Good Day-

I am in need of some pieces to rebuild my Gen 5.5 5port - as I understand it the new GX pieces will fit - who here in the states is caring the crank/rod/pin and such pieces I am looking for and for what prices?

I see 22Racer is a dealer but has no website in his sig -

Ruune is the US dist with one page website - be nice if there were some links to US dealers or a list of them somewhere - and please don't take that as a knock, it is more of an observation -

Thanks -

Send 22racer a pm , he usually responds failrly quickly

Gotta love the sound of the 2072 eh guys ? I absolutely love the scream this pipe produces ! good job to whomever put that one together !!!!

+1 on that I love my 2072