Quantcast
Jump to content

Let's Talk Turbo


Recommended Posts

Dedub, what fuel controller did you get?

Anyone change out injectors when they went to turbo?

i been haveing fuel controler maidfor turbo that has air line hook up to read boost an auto fuel up. i've not got them tested yet to set factary program waiting on some parts. the stock injector is 10#
Link to comment
Share on other sites

  • Replies 47
  • Created
  • Last Reply

Top Posters In This Topic

i been haveing fuel controler maidfor turbo that has air line hook up to read boost an auto fuel up. i've not got them tested yet to set factary program waiting on some parts. the stock injector is 10#

Are you making it out of the original fuel controller, or something altogether different?

Uuummm, not to sound totally stupid, but I'm not understanding about injectors. So how do you know what exact injector will fit the engine? Aside from lb rating, how do figure out which one we need, there are tons of different types and styles, what did you use to cross reference into a new. As for the 28# injectors, Lenny, I can't believe your running that big of injectors! A mildly built 350 TPI motor in my Trans Am is running 24# injectors. Are you running a really short injection pulse to compensate for the big injectors?

Link to comment
Share on other sites

I started with 22# injectors and it wasn't enough. I don't think i'm running a short pulse. Real short pulses can be inconsistant. Initially my dyno guy was having trouble getting enough fuel. Shaun Church of Church Automotive did my dyno work. He is maybe the best tuner in the country. See http://www.hondatuningmagazine.com/tech/htup_0805_shawn_church_automotive_testing/ I'm turning out good power and he stayed conservative,

Lenny

Link to comment
Share on other sites

Are you making it out of the original fuel controller, or something altogether different?

Uuummm, not to sound totally stupid, but I'm not understanding about injectors. So how do you know what exact injector will fit the engine? Aside from lb rating, how do figure out which one we need, there are tons of different types and styles, what did you use to cross reference into a new. As for the 28# injectors, Lenny, I can't believe your running that big of injectors! A mildly built 350 TPI motor in my Trans Am is running 24# injectors. Are you running a really short injection pulse to compensate for the big injectors?

it's made like the original controler with air line hook up.
Link to comment
Share on other sites

Trooper uses injectors with ev1 connection...someone would have to pull a injector out and measure it and also measure the o rings to know the size of injectors. I think maybe taller injectors won't hurt anything?

Sent from my DROID RAZR using Tapatalk 2

How about you Lenny, how did you figure out what injectors to buy?

Link to comment
Share on other sites

A company that specializes in injectors gave me injectors for an engine putting out 140-150 hp. I then ended up going bigger when i felt it could use more. If you figure I'm 72 cu. inch and with my supercharger, I doubling the air intake volume or maybe more so that makes me like say a 144 cu in or more with 4 cylinders. A 350 engine using a 28# injector with 8 cylinders isn't all that far off.

Lenny

Link to comment
Share on other sites

  • 4 weeks later...
Hey fellas raed this topic through and was curious about a brand new turbo i actually bought for a mustang i had. The turbo is a T4 that is made for 1.9 to 2.3 liter ford 4 cylinder engines and i figured since i allready have it can i run it on my stock engine or do i have to put lots of mods on it?

I'm not sure but i would think that turbo is pretty big for a 1100cc? Too big turbo would make turbo lag

Sent from my DROID RAZR using Tapatalk 2

Link to comment
Share on other sites

I'm not sure but i would think that turbo is pretty big for a 1100cc? Too big turbo would make turbo lag

Sent from my DROID RAZR using Tapatalk 2

I'm inclined to agree. There are two problems with installing too big a turbo, the first obviously being spool time. The second being pressure wave consistency. Basically if you look at a performance map for your turbo and your engine numbers put you to the left of the "islands" the turbo is too big for the exhaust to create a constant force on the turbo which can cause damage to the turbo.

Someone chime in here if I'm not getting it explained right.

Then again, don't take my word for it yet! I don't have mine up and running yet to find out if I calculated mine too small. It sure looks too small, but its supposed to be for 1000-1300cc, and my calculations for the engine numbers put it right in the middle of the performance map. We'll see in a few days I hope!

Link to comment
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.
Note: Your post will require moderator approval before it will be visible.

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.

  • Similar Topics

    • By buckrub
      Hey guys! Newbie here. I'm an old man who's better with plowing a mule (4-legged kind) than these newfangled beasts. I, and a friend of mine, just bought new Coleman sxs and are having to finish the assembly. I've been reading on this site and I'm falling on the mercy of you experts. The only way I'm an expert is that an "ex" is a has been, and a spurt is a drip under pressure. LOL First off, the 2 buggies have no ignition switches. They seem to mount on the dash, not the opening in the steering wheel shaft cover, so we ordered new ones that are supposed to fit. They are 8 inches long, and have a 4-wired white plugin which is slightly rectangled when looking at the end of the plug. The trouble is there's nothing to plug into. There is a three-wire grey plug close enough to reach the four-wire plug, but of course, they are not compatible. 
      Secondly, the blinker, light, ect. unit on steering wheel just spins around when touched. I see no way in heaven or earth to secure it. I've looked at a diagram on the Powersports site, but can't detect how it mounted. Fellows I'd be so grateful for any help with this. Me and my mule will even plow your garden for free, for your help. LOL 
       
    • By aefron88
      I've seen a number of requests for the location of all the grease points on these machines, and there is no definitive list in the manual. This covers the UT400, but other Coleman/Hisun models should be similar.
      Tools:
      First to grease your machine you need a grease gun and some NLGI#2 grease. You will find it helpful to buy a needle attachment as pictured here, due to poor clearance on some of the U-joints. The rest of the zerks use the standard attachment.
       
      Technique:
      Wipe any dirt/grease off the zerk before greasing to prevent pushing gunk inside and causing excess wear.
      Push the grease gun on the zerk at a straight angle and give it a few pumps. You will hear an oozing noise or sea grease coming out from the outside of the greased area when you've put enough grease in, a few pumps should be plenty.
      If it's just oozing around the zerk you either don't have a good seat with the gun, or the zerk may be rusted and the check ball frozen. Try seating it again and regrease.
      Wipe up any excess grease when youre done to prevent making a mess.
      Greasepoints:



      Rear A-Arms are greasable with the wheels on from the rear, I took the picture with the wheel off for easier visibility

       
      That's it. All other Hisuns should be substantially similar.
    • By packersfan
      I have a hisun 500 got from a auction and when turning a corner left or right it's a two hand job then when you left go snaps back.any help on what to look at would be appreciated.
      Also blows blue smoke until she gets warm then it's ok 
    • By Richard shepard
      I have a 2021 colman 400utv engine will start and idle, as soon as you hit throttle to move engine dies and will only start when you throttle it, let off throttle it dies, I replaced the injector and plug still the same, anyone have any other ideas
    • By SwampTrapper
      This is my first buggy. I rode a Arctic Cat 500 manual for 19 years. My question is: with the engine running in Park and you rev the engine is the drive belt engaged and turning 🤷



×
×
  • Create New...