Giant

diesel spam

Recommended Posts

its never gonna affect you on a hill though, and the taking off thing is all jsut what you're used to on teh specific vehicle changing. 

if it's gonna affect you on the hill then why doesn't it take half a minute for your engine to come to rest when you switch the key off at idle?

 

Share this post


Link to post
Share on other sites
On 3/11/2018 at 00:41, Hemi said:

Fitted chromally (sp?) flywheel to the 910 when the ca18det was in it , and it was great, but i didnt grab the super light one but was way,WAY lighter then factory and the only thing i noticed is you needed more pedal to take off because it would stall easier, thats it. 

This.

It only affects the engine by decreasing inertia, thus meaning that taking off requires a bit more jandal. That's it.
The incline speed/momentum loss effect is a consequence of this but is only really noticeable (bareley) on predominantly smaller displacement engines with fewer cylinders.

The paranoia of losing the ability to power up inclines is so very close to fiction, but is just on the fact side of the fence.

Share this post


Link to post
Share on other sites

will depend how grabby the clutch is too.  i.e. it makes it trickier with an on/off puk clutch but with a full face that that's less grabby you probably wont notice it much as you have more time to react with the clutch or throttle

Share this post


Link to post
Share on other sites

At one point I had my 3L wound up to 30, but the fuel pump was already topped out so there wasn't really any gain, just unnecessary stress so I backed it to 25 and it was happy as anything. No idea when they pop, I never managed to do it.

A CT20 will pop above 20psi, they're also inefficient little buggers so you'll definitely want a better turbo if you plan on pushing it over about 15 or so.

Share this post


Link to post
Share on other sites
58 minutes ago, Firetruck said:

At one point I had my 3L wound up to 30, but the fuel pump was already topped out so there wasn't really any gain, just unnecessary stress so I backed it to 25 and it was happy as anything. No idea when they pop, I never managed to do it.

A CT20 will pop above 20psi, they're also inefficient little buggers so you'll definitely want a better turbo if you plan on pushing it over about 15 or so.

standard internals and pump ??

thinking about more mojo for the 1HZ in my Cruiser, and unsure which way to head

 

Share this post


Link to post
Share on other sites
2 hours ago, Giant said:

What's the boost limit a 2lt can handle before it pops

Cant remember how much boost it made but a mate of mine had a 2l non turbo engine in his hilux. Made a custom manifold, good turbo, no wastegate,  intercooler etc... ended up running high 14sec 1/4s which I thought was good given how gutless it was to start with. 

It broke a gudgeon pin after a little while, the 2lt ones are bigger, it got a set of those and a quick rebuild and it was good again

Share this post


Link to post
Share on other sites
1 hour ago, 00quattro00 said:

A hx30 or he221 would work well, ill be running a he221 with a 5.5cm housing on a 3.9l diesel

 

25 minutes ago, cletus said:

Cant remember how much boost it made but a mate of mine had a 2l non turbo engine in his hilux. Made a custom manifold, good turbo, no wastegate,  intercooler etc... ended up running high 14sec 1/4s which I thought was good given how gutless it was to start with. 

It broke a gudgeon pin after a little while, the 2lt ones are bigger, it got a set of those and a quick rebuild and it was good again

are these examples with factory NA diesil pumps ??

any gains in camshaft work on a lazy diesel ?

Share this post


Link to post
Share on other sites

Internet diagnosis time people! Rd28t stuttering/stumbling under boost. Left Wellington last night and all was fine and dandy, but after a while it started surging (power would cut in and out, felt like driving into a really gusty headwind) when trying to accelerate at any decent rate. Got worse over time. I topped up with diesel from half a tank along the way and I can’t be sure but I think it was not long after that that I first noticed it, but may be a coincidence.

initially I could drive around it by keeping the boost down and not giving it full beans, but by the time I arrived at my destination (300km), it was stumbling just keeping a stable speed.

any ideas on where to start? I plan on checking the fuel filter (not sure what to check for haha), and obvious things first (leaks etc). Was also thinking perhaps a leaking/torn boost android diaphragm? As it feels Iike when it’s Making boost the fuelling is all out of whack.

oh and it starts as it’s always starts (I.e. fine) and will rev out cleanly with no load.

cheer!

Share this post


Link to post
Share on other sites

Check your your fuel lines and filter and make sure they're not pulling in any air. I've done a few diesels with those symptoms, one was a shitty fuel hose, one was a split filter housing, one was an incorrectly installed filter, all allowing air to be pulled into the fuel lines and causing weird misfires.

  • Like 2

Share this post


Link to post
Share on other sites

Roger that. Check as in visual inspection or is there an actual way to check if there is air getting in?

Share this post


Link to post
Share on other sites

I'd hook some clear pipe to the pump return and see if there's bubbles. After that it's a process of elimination.

Share this post


Link to post
Share on other sites

Good thinking, shall do that. Whipped the top of the boost aneroid off to check the diaphragm, no leaks but the pin was pretty gunked up so have it a clean (and put it back in the same place).  Doesn’t appear to have changed anything so can cross that off.

Share this post


Link to post
Share on other sites

Fuel blockage, usually collects at joins, banjo bolts/fittings. 

Take pipe off at filter and check.

Could also be at pickup, but hard to check that, could blow down the line back to tank. (Don't forget to re-prime after) 

Actually, check the banjo at the pump first, fuel line from filter to pump. They usually have a filter in it.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.