XJ700 *EFI* The holy sh*t it is fast now mod!

Re: XJ700 Now with F1 engine from down under!

<------- really wants to test drive

 

Re: XJ700 Now with F1 engine from down under!

I HOPE you took good notes!!! 8)

I just hope I can find the time this spring to mess with this along with the frankine engine project

 

Re: XJ700 Now with F1 engine from down under!

 

Dude... I've been following this thread closely, and all I can say is WOW!! I wonder how that would look and run on my bike?

http://www.xjbikes.com/Forums/viewtopic/t=28506.html

You've got some serious skills man. What do you do for a living? NOMB, but just wondering.

 

Tactical Aircraft Mechanic, thats my job.

 

Just ordered a 4-1 MAC exhaust to replace that heavy factory restrictive crap.

 

Hey there Gennro, I just spent a delightful hour reading about the conversion. That would sure make my monster fly too and less likely to lean out a cylinder. That bike looks awesome! I can follow the build well, but would go crazy trying to make it work on my bike. Many kudos for the transformation.
Mike

 

Wow, any chance you're going to get this to a dyno and graph your gains?

Awesome stuff!

 

Prolly not.

 

Ah, ok. Things make a little more sense now. Lol

 

This build deserves to be featured in a Bike Magazine.

I don't know how many people are capable of completing such a Technical oriented Mod; but the Motorcycle Community outside of our Forum would find the particulars of this project very interesting reading.

Kudo's for letting us go along for the ride.
Great project.

 

Thanks Rick!

 

Ordered 2' of 1.5" OD aluminum pipe and two 3" long 1.5" ID silicone couplers to build some longer runners for the throttle bodies to help smooth out the intake air and help with cylinder fill. This coupled with a good flowing exhaust should help a lot.

 

i'd like to hear how much the 4-1 pipe changes the mixture

 

This is sort of related... but where did you get those intake pipes? They look great!

 

Those are just made from PVC pipe. I didn't like them at all so I took them off.

 

Well I ordered a 28" dragbar with a 4" pull back. Also ordered some new grips with skulls on the ends.

 

Update today. 2nd gear ate itself agian so I had to split the cases apart and replace the gear. Also decided to paint the engine black.

 

/acts like it's no big deal



dude bro, you're awesome

 

Thanks man!

Motorcycle engines are cake to work on. The engine is back in the bike and finished painting. Just waiting for the paint to dry over night. Will have my 4-1 exhaust tomorrow so it will get the heat wrap and installed! The drag bas should be here this week along with some skull hand grips.

I also won the auction for the XJ900 oil cooler, $44! So that will be here this week at sometime.

 

you gonna put some nice seats on it?

 

I'm leaving the stock seats on. I recovered the front seat and now I am just waiting on the rear seat cover to get here. I like the stock seat it is pretty comfortable after I put some new foam in it.

 

Unreal project.

I can only hope to someday have the skills and knowledge you have. It also sounds like you have a badass job too. I'm jelly.

 

Few more pics.....

Installed thew new drag bars. Along with the new 4-1 with heat wrap. Also put the bike back together for the most part. Nothing real exciting yet.

 

Nothing real exciting yet? Are you kidding? That EFI conversion is one for the records.

 

Wooooo more pics started the bike up to let the engine to get to full temp to help bake on the paint.

 

Just looking at the header wrap, if you have access to safety wire and a set of safety wire pliers it would get rid of those hose clamps and clean up the look.
Just a thought.

 

I like the look of the clamps myself that why I bought stainless steel ones.

 

I had a couple questions, first, where did you get your 36-1 wheel, and also, on im using an 03 gxsr set of throttle bodies, what were the specs of the injectors? i cant find that information anywhere and i need it to set up my megasquirt system, let me know.

 

Unreal gennro! I am not usually a big fan of the mod and chopped look but what an A-1 job you have done! I am impressed, awed, amazed ... the words escape me. Nicely done!

 

The 36-1 I bought off ebay and the injectors are 19lbs/hr.

 

Would this work for any other XJs e.g. 550, 650, 750. I know the 700 is a 5 valve per cylinder as per the 2 valve per cylinder but was just wondering.

 

The XJ700 Maxim (without the "X") (as Gennro´s) has the "normal" 8 Valve aircooled XJ-engine.

You´re referring to the XJ700/750 Maxim-X with water-cooled 20 valve engine.

 

thanks for that a big help

 

You have enough on your plate now young man, get your other bike done first! :roll: :roll:
:twisted: :twisted: :twisted:
Mebbe the next one ay!

 

OK

 

how did you attach the intake boots? did you use the stock ones or did you use the ones from the gsxr intake? i have both.

 

the boots from the head to the throttle body? I used the xj700 ones.

 

ok, ive been having a hard time fitting mine to the gsxr intake...

 

Well gennro, looks like you got something going. :lol:

 

You wont fit them to 750 manifold boots, you need boots from the 700. Diameter and spacing is different.

If you look up manifold boots on Lens XJ4EVER for sale section he has a good
explanation of diferences.

 

but they will fit the gsxr manifold to the xj750 motor?

 

could you possibly point me towards that write up im having a hard time finding it

 

This explains the differences in intake manifolds.

 

ohhh haha i have 2 xj 750 motors. i should be able to mix n match boots to fit

 

worse comes to worse i make something that fits

 

Just check to see that you can stretch the boots enough as they are smaller.


I have decided to ditch the original manifolds and make an aluminium manifold instead for mine.

 

i was thinking about making one but cost and time to my senior design project limited me to a gsxr setup

 

Is there any definitive word on whether or not the Suzuki GSXR intake manifolds will fit the XJ650/750 heads, since the injectors are 33mm and the 33mm XJ700 intake manifolds are NLA?

 

A heat gun, some lube, and two ratchet straps will make anything fit. It is not just a slip on affair. It takes some work to slip the throttle bodies in.