Injection system

[Bruce Woolmore]

I'm interested in aftermarket throttle bodies; can anyone help me identify this setup? (hope this c&P works! )

http://www.classicZcars.com/photopost/showphoto.php?photo=7940&size=big&password=&sort=1&thecat=

[drunkenmaster]

independant throttle bodies?

http://www.speed-technology.com/efi_main_page.html do a kit.

[Zvoiture]

Usual suspects over here and across the pond: Jenvey and TWM.

http://www.jenvey.co.uk/

and http://www.twminduction.com/

From early morning memory...hope they work.

steve77

[Gav240z]

Originally posted by drunkenmaster
independant throttle bodies?

http://www.speed-technology.com/efi_main_page.html do a kit.

But of course how could I be so stupid I've been wanting to get a set like this in Australia had no idea where to go.

Don't spose you know how much they want for a kit to suit the L series?
I think this would give outstanding performance and daily drivability. :classic:

[drunkenmaster]

Not sure, give them a call, Steve is very helpful.

From memory it was around the $1k mark.

[Gav240z]

$1k if your correct is dirt cheap.
I'm not sure if with a system like this you'd require fuel pump, fuel rails etc..

I guess my best bet it to call Steve or better yet pop in and see him.

I was thinking it would cost around 3 large.

[Bruce Woolmore]

dont look like TWM or Jenvey - and is that a second (blanked out) injection port on each one?

[drunkenmaster]

Definately wasnt that much, unless you are including aftermarket management etc etc.

You can see one of his sets on a car at http://www.datperform.com/tech_archive.htm

[ROOPZ]

I was wondering about the possibility of putting a Holley projection unit on a L6. Has anyone done this? If you used a four barrel intake and the holley projection it seems it might be a fairly inexpensive way of getting better fuel injection. Any thoughts? What gave me the idea was a link I saw here for supercharging the L6. Jim Cook racing. He is using the holley projection on a small supercharger. The Nissan fuel injection was great for its time but it seems to have many flaws in it. I wonder what the effects of using a throttle body would be over the port injection. Couldnt you use this in turbocharging also? Just some thoughts going through my mind. (Imagine that!)
:)

[allknowingbald1]

Any of the EFI manufactures do something for the L24? All I seem to find any info about is the L28.

[nixcars]

I'm currently working on a set up for myself.
See pic in my gallery, (Multiple TB's).
If anyone can upload the pic to be viewed by others on the thread, please do.

Nick.

[Gav240z]

Here they are

[Fentin_Fury]

GAV240z I am curious which injection system this is? Is it the TWM or other?

[Gav240z]

This is from Nixcars gallery if u read just above but they are very similar to http://www.speed-technology.com/efi_intro_animation.html the ones here.

Gav,

[allknowingbald1]

It's understood that it's from Nick's gallery but where did the components come from? Or did he wittle them out of some aircraft aluminum? LOL Sorry, tend to get a little slappy when I get off work at 8 a.m. And I must implore everyone's patience with the information I may ask about.... I bought my first Z on the 7th. And so far I'm lovin the sh*t out of it. I'll get some pics up as soon as I get my digi-cam back from repairs.

[Fentin_Fury]

I requested a quotation from EFI and received one - however it is considerably more than the 1K mentioned in this post. FYI the "kit" is quite extensive and includes:
manifold
throttle bodies
fuel rails
injectors
ram tubes
balance joiners
throttle stop and return kit
drop links - ball socket type
rod posts
acceloratior rod
scavenge filter
EFI filter
EFI Pump
Lift pump
Surge Tank
fuel board and fittings
fuel injection hose
fuel hose
hose clamps
fuel pressure regulator
and.....
a throttle position swith

definately high quality materials and likely "bolt on":love: ...however no engine managment.....

and the total price in Australian $ is 4180.50 or $3,241 USD - a far leap from $1000:ermm: . Then I would add shipping, import duties etc... Therfor you understand why I am curious as to what system is available for 1K.

[allknowingbald1]

:stupid: gee... only $2k difference. Mere pocket change! :bandit:

[Gav240z]

That is the figure I had thought it would cost, perhaps he was talking about just the throttle boddies themselves I dunno.

[nixcars]

I hope this will answer a few questions.

These are available from D.C & O Injection here in Australia.
These particular type of T/B's are a little different from the ones available from EFI Hardware in that the housings are only 1" wide (without ram tubes) & they have no injector ports. The EFI hardware type are also available from D.C & O.

In order to get this set up to work I had to make my own intake manifold by doing a cut & shut on a standard L6 EFI & a tripple webber manifold. In doing this it utilises the original injector ports & it also gives more room between the LH strut tower & the intake set up.

The price for these was around $900AUS + $? for the accelerator stoppers & joiners.

[allknowingbald1]

Well yahtzee! Thanks for the clarification.

[240ZX]

Fentin_Fury,

Maybe you should PM allknowingbald1 for some pocket change!!!ROFL ROFL ROFL

[allknowingbald1]

ROFL Seem to be fresh out at the moment... buyin the Z nixed all of it! :bandit:

[Fentin_Fury]

Well - (just a deep hole with water in it.....)

I'll just put out a call for $ across the forum. ROFL

Just to clarify - I do believe this EFI system is very good and very complete. I have compared to others - including TWM and find this kit slightly higher in cost but I'm sure you wouldn't be running around the garage looking for the $.25 hose clamp.

I haven't held either unit in my hands but based on the pictures and the prompt response I suspect EFI's equipment is top quality. I suspect this mod will be sometime down the road and I'll have to live with the triple de'llortos for some time. Making my car handle so that other don't comment on how nice the underside is in the corners is top priority:devious: !

Q

[Black Beaut]

Hmmm, very intersting. I'm planning on going EFI through individual TBs too. Naturally my choice is a bit more limited here in the UK so I'll probably end up using Jenvey bodies on a Weber manifold. I have to say the TWM 2000 system is very tempting though having direct to head TBs. Currently priced at $3000 for the kit which seems pretty reasonable. Do you think that'll change when it's released? Or has it already been released and their website isn't upto date?

Cheers,
Rob

[Bruce Woolmore]

since he has left the injector mounts in the manifold, it allows you to use your triple carbs just as throttle bodies (easier tuning etc) and still have the improved flow of the individual runners (vs the original EFI manifold) - might try that meself!

[Fentin_Fury]

I checked with TWM regarding their new 2000 series. It is behind schedule and won't likely be reading until June. Price for the kit remains as stated - $2999 - but does not include injectors or engine management.

It would be good to see feedback on this system if anyone goes this route.

[Black Beaut]

Originally posted by Fentin_Fury
I checked with TWM regarding their new 2000 series. It is behind schedule and won't likely be reading until June. Price for the kit remains as stated - $2999 - but does not include injectors or engine management.

It would be good to see feedback on this system if anyone goes this route.

D'oh! Thanks for the info though mate. I guess 5 months gives me plenty of time to save up a bit of cash though :D

Cheers,
Rob

[Black Beaut]

We doubt this project will be completed much before Sept/Oct. It is drawn and modelled in 3D but the decision whether to make it in aluminum or carbon fiber has not been made. We'll probably end up with a combination of both.

Hmmm, carbon fiber seems a bit excessive. Looking at those time frames I guess I might as well go with some Jenvey TBs on a triple Weber manifold - such a sacrifice :D

Cheers,
Rob

[hls30.com]

Hi Guys! There is a parallel thread in the engine forum-fyi

[drunkenmaster]

Originally posted by Gav240z
That is the figure I had thought it would cost, perhaps he was talking about just the throttle boddies themselves I dunno.

Yes, I was talking about the throttle bodies alone, you are talking about a full EFI conversion. In the first couple posts of the thread only the independant TB's were in question, there wasnt any mention of EFI pumps, injectors etc etc