L28 ET project

[twoforty]

Hi Guys
I thought I'd start a thread on my new project.
I have a buyer for my existing l28 NA engine and have decided to go the turbo route.
I'll be using an F54/P90 engine/ 2mm steel head gasket with a little skim to get a CR of 8.5:1
ECU is a Megasquirt II running fuel and spark control through supra 440cc injectors and a ford EDIS 6 ignition.
Turbo is a Holset HE351CW, similar to the HY35 but with an electronic boost solenoid. Standard fittment to Dodge Ram 5.7 ltr diesels from around 2004.
will be fitting a fuel cell with a Walbro 255ltr fuel pump.
Not decided which IC to use yet but will be as big as poss.

I'll wind it up on stock pistons, keep air/fuel as cool as possible, timing under control and see what it will kick out before it pops!

I'll post lots of pictures, will start in the next week or two.

 

[datsun dave]

twoforty go for it !!!!

best of luck with your project will be looking out for the build pictures

 

[Mr.G]

Look forward to your progress!! Fuel cell sounds like a neat idea!

 

[pmac]

This might be just what you need?????

 

[twoforty]

Thanks Guys, that's an HE351CW not 341.
What spec is the head Pmac?

 

[pmac]

Fully reconditioned P90.
Going on someones L28 turbo project IIRC

 

[260Z TT]

Hi Pete,
Not going on mine! Mine is good and works great with a pair of T3's strapped on it. Have recently acquired a set of ARP head studs for it to make sure it stays in place at the strip!
Long time no see anyway matey!
Mark.

 

[twoforty]

Ah right! One of the engines I'm getting already has a recon p90 and a set of new piston rings, so I should be good for a while.
Thanks for the offer though

 

[twoforty]

Here is the turbo I'm going to use
"60mm inducer / 85mm backface. The tubine housing is a 9cm^2.
Turbine wheel is a 65mm backface / 58mm inducer. "

 

[Mr.G]

Looks like a mean ol turbo there, is it water cooled too? Does it have a T3 flange?

Going back to fuel cell, will be great to see how you get on. Why fuel cell though? Is it because you want to get around the stock fuel tank not having baffles? I wouldnt mind one myself if it fits in the stock place with no issues.

 

[ZHead]

Seeing projects like this makes mine look "oh so simple" - buy a complete drivetrain and bolt it in.

I take my hat off to people like you, skiddy etc who understand engineering and pioneer things. AM really going to like watching this unfold.

350BHP from an L Series - awesome

 

[twoforty]

PMAC , I wasn't looking at your screen name...of course I will be having your head and engine!! lol doh!

 

[twoforty]

Fuel cell? yeah my fuel tank leaks when I put over £30 in it lol, I figured I will cut the wheel well out and a bit of the boot floor, weld some box section in to hold the celland then re-route the old filler pipe.
There isn't a great deal of the old.....or should I say rusty car left so cutting the floor out a the back doesn't bother me, I'm sure some people will spit their tea out when reading this

Pete, I may get a few days off next week, I'll give you a bell if I can pick the engine up on one of those days.
Cheers

 

[twoforty]

Zhead, I'm sure Skiddy understands a lot more then I do about engines, I'm just reading a lot on the subject and making sure I don't let it detonate to destruction. Luckily my brother has been building race engines for years so I quiz him for the stuff I don't understand..he has a reliable 470BHP 1.8 Seat turbo so he must be doing something right getting that power to the floor is another thing...wheel spinning in 5th is not good!

 

[twoforty]

Mr G, its not water cooled but it does have a T3 flange.

 

[twoforty]

Turbo, fuel pump and fuel regulator arrived today.....always nice when Mr Customs doesn't make any charges.
This is one big turbo!

 

[twoforty]

Managed to get the MS ecu updated last night, Must be 300 pages of info to read on this thing!
Updating the software is pretty easy. You place a jumper on the MPU to bootload, connect a serial cable to your pc and run a program called MSii Download. takes about 2 mins. You then have to change the ini file in the megatune program to match you new software version.....the EDIS ignition system taken from a v6 ford is a good bit of kit, It will run stand alone in limphome mode at 10degrees BTDC.....when the megasquirt ecu is connect via 2 wires you can adjust the timing at any rpm range even on the fly whilst driving. It needs a 36 tooth -1 (1 mssing tooth) wheel fixed to the crank shaft pulley to operate....or a 72-2 on the dizzy shaft.

 

[racer]

Fantastic! Glad to see someone doing a proper fully controlled turbo Lseries.
I know Top end performance claim 450 brake for some of there Turbo conversions( A bit optomistic) what do you hope for?

 

[twoforty]

Thanks, I think 450 can be done with the right pistons and valves.
I'm going to aim for around the 350-400bhp mark, I just pulled my new turbo to bits so that I can enlarge the internal waste gate. As it is it's small and would give me boost creep problems, I may go external if the porting doesn't help. It's very easy to take apart as it has V-band clamps holding the housings in place.
Just waiting on my fuel rail and throttle body now.
I'm hoping to have it up and running by July.
Should make some good 1/4m times when its finished

 

[datsun dave]

twoforty you sound like a man on a mission well done keep up the hard work.