Jump to content


Photo

L28T build


  • Please log in to reply
92 replies to this topic

#41 d3c0y

d3c0y

    The 2000+ club

  • Members
  • PipPipPipPipPipPipPip
  • 2,906 posts
  • Website:http://garagesanmaru.com
  • Location:Brisbane
  • Tagline:Forum Jerk

Posted 16 March 2012 - 01:30 PM

An L28 with triple carbs will make that much power for a lot less effort.

#42 peter mc

peter mc

    The 1000+ club

  • Members
  • PipPipPipPipPipPip
  • 1,573 posts

Posted 16 March 2012 - 03:58 PM

yep thats my point a good L28 with injection makes 250 hp atw 0 boost

#43 DaMuffinman

DaMuffinman

    Newbie

  • Members
  • Pip
  • 9 posts
  • Location:Brisbane
  • Tagline:New Member

Posted 16 March 2012 - 11:32 PM

The l28 in my z is making 215atw kw on 15 psi on an e88 head. but im looking to more around the 260kw area. its not running electronic ignition yet . what sorta gains are to be had? any other options before i start pulling the head off and going for a p90?

#44 peter mc

peter mc

    The 1000+ club

  • Members
  • PipPipPipPipPipPip
  • 1,573 posts

Posted 17 March 2012 - 09:21 PM

Control over the ignition is the most inportant part of a turbo setup  . the most inportant by far , timing is all inportant to making the motor last and make power  . for eg a L28 NA needs 28 to 32 deg at 10.to 1 comp to make it all work right . now if you don't have enough timing it will not make power and will feel flat and boring retarded , and if you have to much it will ping and blow head gaskets and crack ring lands and wreck the engine advanced

so with a turbo engine like yours you say you have 15psi with a t3 turbo like stock one , off boost the engine needs 30deg to run nice at 3500 rpm and above that's off boost  , now add boost . now we need to remove timing or the engine will ping
and die so for every psi we need to remove timing how much we remove depends on lots of things every engine is diffrent and small turbos are the worst, req more  timing to be pulled out fast as they  make boost fast  . so your L28 with 15psi t3
will need at a guess 17 deg removed with that head you have  ..
now as a tuner if i have to remove more than 12 deg timing i now the setup is not as good as it should be and id be looking at the head , and air temps or a restriction in the system , you no there is a problem when the boost is not making more hp  and your removing more timing per psi to stop pinging  .

#45 DaMuffinman

DaMuffinman

    Newbie

  • Members
  • Pip
  • 9 posts
  • Location:Brisbane
  • Tagline:New Member

Posted 18 March 2012 - 10:51 AM

thanks for the advice.
it has cleared alot of things up for me.


#46 CH105

CH105

    Member

  • Members
  • PipPip
  • 16 posts
  • Location:United Kingdom
  • Tagline:New Member

Posted 22 March 2012 - 01:56 PM

I'm really enjoying this thread, looking forward to further updates.

I've not seen the girdle before, is that something you supply Peter?

Really like the exhaust manifold, what turbo fitting does it take?

#47 Vindicare

Vindicare

    Advanced Member

  • Members
  • PipPipPip
  • 143 posts

Posted 29 March 2012 - 12:48 PM

Girdle is from amember on here. Maanifold is a t4 flange however iam using a t3 t4 adapter. Intake will arrive to peter soon, so the engine willbe fully together . Then just gotta save the rest of money needed to install.

#48 peter mc

peter mc

    The 1000+ club

  • Members
  • PipPipPipPipPipPip
  • 1,573 posts

Posted 19 April 2012 - 08:25 PM

some pics of the new inlet from the US and the exhaust manifold now with the wgate on .
more pics tomorrow off the head with the new water mods , iv striped the hole thing as it been sitting not finished so i wonted to make shore its all as good as it should be

Attached Thumbnails

  • 29420_c90ee6af577ecc30316ed7ccefbe60e5c39e591f.jpg
  • 29418_9db8f54258103470c7b1f60a5acd140d0b63b266.jpg
  • 29416_373d7131539eacf81e16c36f8409e2eaf8762898.jpg


#49 handsandwhich

handsandwhich

    Advanced Member

  • Members
  • PipPipPip
  • 453 posts
  • Location:melbourne
  • Tagline:Huge Member

Posted 19 April 2012 - 09:11 PM

Pete, you know I love shiny polished things and that manifold needs the bling factor added.

Owner should seriously consider polishing it up before installation.


#50 peter mc

peter mc

    The 1000+ club

  • Members
  • PipPipPipPipPipPip
  • 1,573 posts

Posted 19 April 2012 - 09:25 PM

your not wrong mate the finish is not as good as it should be ,,, like most things that come from the US now there crap ,
i was thinking id send it over to hpc . after i finish it so it works , ,, it needs about 4 hours of time to weld up and fix all the crap welds and weld a peace of ally to the bottom and tap some holes in it for the vacuum pickups . just a peace of crap
the way it came from the US

#51 peter mc

peter mc

    The 1000+ club

  • Members
  • PipPipPipPipPipPip
  • 1,573 posts

Posted 26 April 2012 - 07:50 PM

well its all back together
mods iv done wile the engine was apart ,iv done the water mods to the top of the p90 and put a -6 water bleed on the rear of the head .
i also re honed the block with a torque plate and set the clearance to 4.5th, i also re decked the block and head to get a better  Finnish , and had the crank polished to ,,, I'm happy now  ;D just have the water and oil lines to do now

Attached Thumbnails

  • 29519_eccb71f6796254fd57f11b31c5873eca7e3b7b9c.jpg
  • 29517_176ffdcbe3478a249583a981eed2fb051e204b13.jpg
  • 29515_e1efb67a3eca2ced490e41bdd574b797ea52f07a.jpg
  • 29513_20cbcf73bfdeb973ede082799ef7b15b32f49153.jpg


#52 RB30X

RB30X

    The 1000+ club

  • Members
  • PipPipPipPipPipPip
  • 1,981 posts
  • Location:Gladstone QLD

Posted 26 April 2012 - 08:52 PM

Looks awesome Peter.
There must be more XF throttle bodies on other cars, then there are ford falcons these days.
Oh and wont the air come out of those holes in the bottom of the plenum chamber???????? ;D

#53 CH105

CH105

    Member

  • Members
  • PipPip
  • 16 posts
  • Location:United Kingdom
  • Tagline:New Member

Posted 26 April 2012 - 09:00 PM

Peter, I wish you'd emigrate to the UK and build my engine.

#54 d3c0y

d3c0y

    The 2000+ club

  • Members
  • PipPipPipPipPipPipPip
  • 2,906 posts
  • Website:http://garagesanmaru.com
  • Location:Brisbane
  • Tagline:Forum Jerk

Posted 27 April 2012 - 11:55 AM

So that -6 fitting going from the turbo to the back of the block is a coolant line right?

#55 dat2kman

dat2kman

    The 2000+ club

  • Members
  • PipPipPipPipPipPipPip
  • 4,061 posts
  • Location:Newport Waters Qld
  • Tagline:going sailing, see ya later!

Posted 27 April 2012 - 01:14 PM

I run a small water line from under thermo housing, around front of head, along under spark plugs and into back of head near  no 6 plug, ie a heater bypass, othetwise they can hotspot back around 6

#56 luvemfast

luvemfast

    The 2000+ club

  • Members
  • PipPipPipPipPipPipPip
  • 4,136 posts
  • Location:Melbourne

Posted 27 April 2012 - 05:53 PM

Peter, why wasn't this done to my head?  ???
Big difference to remove and mod it now  :-\

#57 Scoota G

Scoota G

    The 2000+ club

  • Members
  • PipPipPipPipPipPipPip
  • 4,213 posts
  • Location:Ballarat
  • Tagline:Mark

Posted 27 April 2012 - 07:11 PM

Peter, why wasn't this done to my head?  ???
Big difference to remove and mod it now  :-\


Road car Vs track car?

#58 luvemfast

luvemfast

    The 2000+ club

  • Members
  • PipPipPipPipPipPipPip
  • 4,136 posts
  • Location:Melbourne

Posted 27 April 2012 - 07:25 PM

Road car Vs track car?

Who's in the what now?
Calling my car a road car?  ???
Not a race car. That's completely different again.

#59 peter mc

peter mc

    The 1000+ club

  • Members
  • PipPipPipPipPipPip
  • 1,573 posts

Posted 27 April 2012 - 07:55 PM

Well  Simon its because the engines now have stepped up a notch or two  in spec and Finnish ,thanks to Les ... iv picked up so much in a short time ,all we do is think up new ways to make L series go faster.
SO  to answer your question Simon it can be done very easy as your head gasket can be re used ... and it would be a good thing to do



#60 peter mc

peter mc

    The 1000+ club

  • Members
  • PipPipPipPipPipPip
  • 1,573 posts

Posted 27 April 2012 - 08:15 PM

some picks of the water lines for the turbo ,, water comes from the lower block outlet and goes throw the turbo and then goes to the thermostat housing

Attached Thumbnails

  • 29550_f76348c4929858170bbde507792325ce8d085dd2.jpg
  • 29548_b889d6a8884a67785c51f9ddef81baac8600d49f.jpg
  • 29546_afbea7b2c21e9295a40fe7068547c0befe1699ed.jpg





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users