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#21 .

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Posted 07 December 2011 - 12:54 PM

+1 for the SR20DET they go real hard in a S30.....not sure about the torque for an S130 though.

#22 dat2kman

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Posted 07 December 2011 - 01:27 PM

p90, tick
f54 strong rigid block, tick
unscrew spark plug, stick in thin flat blade screwdrivwer, feel around back side of piston, ( make sure pistion is close to top-- may have to take all plugs out to find one,,,, or turn motor over--- dont leave screwdriver in thought!)
If you can feel a bit of a slight ridge, and a dip, presto dished pistons, only 7cc mind!

S30 shell is lighteter than S13 Silvia, so no probs with torque, but if you want torque, just buy an off the shlf 2.2 storker kit!! stick on a disco Tato, and go have fun!

#23 zedevan

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Posted 07 December 2011 - 04:09 PM

i personally dont see the point in sticking an sr20 in a zed when silvia's/180's are so cheap, and seems like a waste of all that engine bay space

#24 dat2kman

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Posted 07 December 2011 - 05:06 PM

i personally dont see the point in sticking an sr20 in a zed when silvia's/180's are so cheap, and seems like a waste of all that engine bay space

More bang for buck
Just buy performance stuff off shelf and bolt on
Better weight distrubution
Chaep turbo fix
Plenty room for kickarse intercooler and radiator, set back
Perfect track weapon'
Rb conversipns are now so passe'!


#25 Ben

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Posted 07 December 2011 - 07:46 PM

ok i just got a email from him its a j spec engine what ever that means p90 head f54 block

now i allready have that setup in my car but n/a 

his asking 4k for it ?  worth it 
its not much power plus 4k i could get a rb25 full setup


Damn you guys posted with haste to this thread!
:)

There is no such thing as a JDM L28ET - they were USDM only.

Get photo's of the engine number, block casting, head casting and what kind of triggering system is in use.
The early turbo's had a N42/N42 or N42/P79 with crank trigger and empty distributor (no electronics). The 'S2' turbo had the F54/P90/optical distributor setup.

If this donk is an L28ET and ex-Japan, then chances are its from a USDM imported 280ZXT. The JDM Fairlady 280ZX Turbo ran the L20AET.

A T2 would be very average, sure it might spool up quick, but with a 2.8 it would run out of puff at 4000rpm (if that). T2 is Pulsar ET turbo (E15T) size, or about the same as a single from a 1G-GTE twin-turbo...

My old N42/N42 L28ET ran a VG30ET T3 with a T4 compressor and over-bored turbine housing - low-rpm boost wasn't an issue. I would almost wager that it spooled quicker than a stock RB25DET does.


#26 peter mc

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Posted 07 December 2011 - 09:20 PM

yep T2s are for 1600cc engines and on a 2.8 will cause detonation and lots of heat in the exhaust port, you need a gt30 or bigger for a good set up the Borg 700 hp on my last engine was on at 2700 and went all the way to 8000 rpm. to small is worse than to big and very hard to get the tune even close to right

#27 Six_Shooter

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Posted 08 December 2011 - 10:19 AM

I'm running an N/A F54/P90 combo that has unknown milage (already installed in the car when I bought it), that I added the 280ZX exhaust manifold, Cam cover (Only makes sense, right? :D ), F47 (IIRC) intake mani, since the car was carbed when I bought it, a Borg Warner turbo from a 6.5L turbo Diesel, and Delco (General Motors) EFI to, using an N/A 280Z (NOT ZXT) dizzy, and I've ran as much as 14 PSIG non intercooled, but backed it down to 9 PSI until I added the IC, at which point I turned the boost up to 15 PSIG, running on 91 octane fuel that can contain "up to 10% ethanol" (Damn Canadian fuel). I abised it for about 3 years non intercooled, then abused it for a little over a year intercooled. I also added DIS before adding the IC, using a custom trigger wheel set-up and GM coil pack.

You don't need to use a turbo engine, the N/A version will take boost just fine, especially with the advances of modern EFI.

If you want more specifics, they are in my build thread in the members section.

#28 Z

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Posted 08 December 2011 - 11:40 AM

I'm gathering the parts for an L28 spinner at the moment, F54 block, N42 with larger exhaust valves, 280zx turbo manifold, after-market EFI etc. When you look at building a turbo the L series lend nicely to boost as they come with a low comp anyway. Further tweaking with choice of pistons and gasket is all you need. Sure there is RB and SR power, but to me the L series was a big part of what made the Zed so good - so having the L with turbo push seems the best of both.

SR weight advantage is tempting though!

#29 navanskyine

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Posted 08 December 2011 - 01:11 PM

but the rb30 im looking at would be good to :)

dat2kman ill have to bring it up to u so u can have a check for me maybe we can work out what u have there and boost this sucker up

#30 navanskyine

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Posted 08 December 2011 - 02:46 PM

jason could u msg me ur number :)

#31 navanskyine

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Posted 08 December 2011 - 04:59 PM

ok guys other question i have found a l20 turbo no is it possible to take the parts off the l20 to use on the l28 ??

#32 Z

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Posted 08 December 2011 - 06:44 PM

I'd be interested in fixing up the L20.

The S30 chassis is 40 years old, light and not the strongest. To sure the car up properly you may need chassis extensions, sill strenthening, cross-members/strut-bars... the list goes on http://alteredz.com/structuralmods.htm

If your after 300atw (a nice number) there's every chance a well sorted L28 turbo will turn that lovely 240 into spagetti! Maybe a smaller L20 turbo would be more suitable for a car that is so light it'll go like stink anyway??

#33 DatPilot

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Posted 13 December 2011 - 06:03 PM

Navanskyine, pm me your contact details,
I can give you a call to go over a few things.
I have kept track of a few L6 turbo engines in Australia and know quite a few details you might need to know.

#34 dat2kman

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Posted 13 December 2011 - 06:21 PM

dunno, plenty of nice lite weight early shell 240's have been raced over many years with some pretty decent engines in them. Anyone ever seen the sills and the sframes ripped out in normal road use, or race use?/
I'd warrant not!

Bit of seam welding/stitch welding wouldnt go astray, and a bit of extra gussets under the guard where the inner fender meets the outer firewall area, bit of triangulation bracing here and there, more for stopping the big huge unsupported box of an engine bay from twisting around, and the front corners from lifting independant of the other front corner, ala a drag car, and they have triple the power!

Stop scaring people, Ben, just DO IT!

#35 Z

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Posted 13 December 2011 - 07:41 PM

Good to hear your thoughts Jason, if the chassis can handle it all well and good.

I might be going for a n/a stroker but the extra cost and time of getting it right will be increased, plus I need to find the rare LD crank!

If I do... my intercooler, piping, turbo and manni will be up for grabs. Also have a series one HKS plenum - rocking horse shiver!

#36 navanskyine

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Posted 20 December 2011 - 05:40 PM

so ive bolted this turbo and stuff to my l28 as most would know
the turbo kit was from a 2.ltr so the ecu wouldnt work in my 2.8 yeh ?

#37 benny

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Posted 20 December 2011 - 05:58 PM

it will probably work just not well.... enough to get it running anyway!! one of the main problems i can thing of is it will only fiel for a 2L not a 2.8

#38 FLEXZED

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Posted 20 December 2011 - 06:02 PM

so ive bolted this turbo and stuff to my l28 as most would know
the turbo kit was from a 2.ltr so the ecu wouldnt work in my 2.8 yeh ?


You should have bought my RB30 turboand you wouldnt have this problem !!!!!!

#39 Sirpent

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Posted 20 December 2011 - 08:37 PM

I had an L20 which I sold to Mick zzzzed, he offloaded it to a guy in SA who has done a lot of work to it and really got the old rice cooker up and going.

Ask Mick for the link to the guys thread and vid's think you may be suprised by what you can achieve with the L20 induction system

Cheers

John

P.S. The L20 wasnt to bad once it spooled up but you really had to keep it at a certian range when driving to get any real joy out of it.

#40 zzzzed

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Posted 20 December 2011 - 08:42 PM

here is that link to sirpent (john) and my old l20et




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