How Hard Is It To Come Accross These Parts For An R30

[paulmac]

gday just trying to find out how scarce the turbo conversion stuff is for the l24?? and also what are the compression ratio's of the l20et, l24e and l28et? any help in finding these parts would be great new or old not looking to purchase just yet, just getting an idea before i buy the project.

cheers paul

Edited March 3, 2008 by paulmac

[OUTATIME]

find most of that stuff on ebaymotors.com. got my mani for bout $180ish aus i think. also try ozdat.com and 910bluebird.com. some other Zed sites around as well

r30 l24e comp is around the 8.5-8.6:1 pending on the head (e88 lower then n47) which is turbo country. l20ets run fair low comp tho, no idea on the 28's...

[Ghostrider]

L24E MR30 up to '83 was 8.5:1 compression, '84/85 was 9.0:1, L20ET was 7.8:1 and same for L28ET.

Just remember, the higher the static compression, the lower the boost that can be used safely. And stay under a bar and you have better reliability. Factory L20ET boost was about 6psi whilst factory L28 was about 8psi.

BNR32 GTR's had a static compression of 9.0:1.

As for the availability of the required turbo bits goes, they are getting very thin on the ground. Ebay, Ozdat and maybe TradeMe in NZ, might be good, but freight from o/seas is the killer. For an L24ET set up, the stock RB25DET T03 turbo would be the go, or the more antiquated VL Turbo compressor. The exhaust manifold is the same wether L20 or L28ET, Inlet manifolds can be the problem though as there are a few to choose from, depending on your application. For the most part, the L20ET bits would be best for an L24ET in my opinion and the cheapest way to give the rex's a bit of hurry up at a quarter or less of the price.

[paulmac]

cheers fellers that helped alot

yeah as you said ghost rider the higher the static compression the lower the boost thats why i was just trying to figure out what was what because i wouldnt mind about 12psi if i do buy this car i will definately be spending a bit of money on it i found a love for the r30 when i bought my first one so i may aswell spend a bit on one now i got more cash flow

cheers heaps again boys

[noddle]

L24E MR30 up to '83 was 8.5:1 compression, '84/85 was 9.0:1, L20ET was 7.8:1 and same for L28ET.

What was different ?, the pistons or the head, or both ?

Nigel

[Factory 5]

the heads are definitly alot different between th E88 & the N47.

one thing to note is the exhaust flow on a N47 is pretty good as there are these cast in exhaust port liners, with in one part give the gas a high exit velocity, plus the glow red once heated up and burn un used fuel (for emissions etc)

The N47 also has a high quench designed chamber, so is good in N/A format, but over 14 psi it would compress the mixture into one small area and ignite prematurely...... PING!

The manifolds are one of the rarest things, the L20et even rarer

I suggest getting in contact with 'idolizar' on the R31forum, he is selling his flogged out HR30 (L20et) for a grand...

mabey offer him some cash for the engine components...

It wouldnt cost too much to make a custom log style manifold either.... all 6 ports into one log, flange slapped on the side

[Factory 5]

i also know of an old man in the hills with a complete conversion kit (manifolds, injectors, cooler, turbo, afm, dissy, ECU, loom EVERYTHING) he said he wouldnt part with it for less than $800

[paulmac]

i also know of an old man in the hills with a complete conversion kit (manifolds, injectors, cooler, turbo, afm, dissy, ECU, loom EVERYTHING) he said he wouldnt part with it for less than $800

wow thats fair cheap $800 i seen a comlete setup for $400 on ebay a while back i was gonna buy for my first r30 but fundage was sour to me at that time, how long would you think this old feller is going to hold on to these parts? and are you interested in them?? don't wanna cut ya lunch or something

Paul.

[OUTATIME]

whats the difference with the inlet manis? cos sused out afew l28e's at wreckers and their the same as the l24. same tb and runner length. if anything the l20 would b smaller, but pretty sure all same cos exhaust mani is. my stock manifold and mates is working fine as well. i just pissed off all the idle and emissions stuff. looks lot better and runs all gd

Edited March 4, 2008 by OUTATIME

[Factory 5]

intake manifolds are different on all of them , even the L28 and L24

the L20et intake mani has smaller longer runners to increase intake charge velocity, so is very good for torque,(on a 2 liter anyways!)

The L28 is bigger on most models, but they changed it a few times....

THe L24 is in the middle, good balance of torque and higher RPM power... I will be useing my stock L24 intake for starters, then change to L20et later on to see if there is much difference.

the turbos that i have available to use are a VG30, not too sure if its stock as it looks like a RB20 compressor cover. the other is a high flowed VL turbo unit (still to take delivery)

Both of these will be boosting around 3000rpm and above, so my intake manifold should be ok for off-boost driving.

Old man in the hills may be going to a dementia ward soon, so im not too sure how long it will be before the grandkids attempt to clean out his shed!

and not to worry as i have enough conversion parts to last me quite a few years.... just gotta save some cash to et the hatch regoed then i can bolt on all the goodies!

I have a L20et head, block, crank and a few other bits in the carport ready for the scrap metal yard.... so if anyones keen let me know!

[noddle]

intake manifolds are different on all of them , even the L28 and L24

the L20et intake mani has smaller longer runners to increase intake charge velocity, so is very good for torque,(on a 2 liter anyways!)

The L28 is bigger on most models, but they changed it a few times....

THe L24 is in the middle, good balance of torque and higher RPM power... I will be useing my stock L24 intake for starters, then change to L20et later on to see if there is much difference.

the turbos that i have available to use are a VG30, not too sure if its stock as it looks like a RB20 compressor cover. the other is a high flowed VL turbo unit (still to take delivery)

Both of these will be boosting around 3000rpm and above, so my intake manifold should be ok for off-boost driving.

Old man in the hills may be going to a dementia ward soon, so im not too sure how long it will be before the grandkids attempt to clean out his shed!

and not to worry as i have enough conversion parts to last me quite a few years.... just gotta save some cash to et the hatch regoed then i can bolt on all the goodies!

I have a L20et head, block, crank and a few other bits in the carport ready for the scrap metal yard.... so if anyones keen let me know!

I need a turbo cam, what's the difference between a L20Et and a L28et cam ?

do you know what's stamped on the end of the cam (back end)

Nigel

[Factory 5]

there is a little difference between the cams, a L28et cam is better than a L20et cam

but the L20et is better than any stock n/a cam

there are some cam specs available for the L20et, but they are basically top secret as they cost alot of money to get.

i was thinking of useing the L20et cam in my N47 headed L24, but i think i will see if theres any difference before i sell it...

but hey if the price is right!

[stagefumer11]

there is a little difference between the cams, a L28et cam is better than a L20et cam

but the L20et is better than any stock n/a cam

there are some cam specs available for the L20et, but they are basically top secret as they cost alot of money to get.

i was thinking of useing the L20et cam in my N47 headed L24, but i think i will see if theres any difference before i sell it...

but hey if the price is right!

Wrong!.

L28E cam and a l26 cam is a vast improvement to use on a l20et... Check with dennis he has the specs now on the l20et cam.

[OUTATIME]

L26 (260z) NISMO cam (has 2 have "c" stamped on it) would b the best factory cam. more aggressive cams can obviously b bought from crow cams etc.

so l28e cam would b a slight upgrade for l24e(t) cam? worth it...?

[stagefumer11]

L26 (260z) NISMO cam (has 2 have "c" stamped on it) would b the best factory cam. more aggressive cams can obviously b bought from crow cams etc.

so l28e cam would b a slight upgrade for l24e(t) cam? worth it...?

yes correct l26 cam, isnt a nismo cam.. Still a factory cam. Either way isnt best suited for a l20et or any turbo aplication due to it having a large amount of overlap. It will blead off to much pressure.

There are factory released l24et's beleive it or not. Listed on nissan's database. No one knows the specs of those cams, If what you are talking about is using the l28e cam inplace of a factory l24 cam. From what i understand the l24 uses external oil rail for the cam, compared to the l28e cam using a internal feed. you can correct this buy swapping the cam towers from a l28.

[works 510]

I got a turbo manifold coming from japan if anyones interested...

Also still got a hr30 turbo sump , inlet manifold and found out that i kept the l20et afm Sorry tot he people i said i didn't have one too ages back.

Also Denis... found that door trim. Got no idea how you can get it tho because its too big for post.

Cheers,

Waz.

[Factory 5]

im going up to sydney later this year when my R30 is finished so i can drop off the door trim then...

as for cams... im way confused now! will just get a custom....

and does anyone know what a 'F' stamped cam is?

[noddle]

im going up to sydney later this year when my R30 is finished so i can drop off the door trim then...

as for cams... im way confused now! will just get a custom....

and does anyone know what a 'F' stamped cam is?

This says its from a L28e, using a P97(?) Head

http://www.atlanticz.ca/zclub/techtips/cam/index.htm

[stagefumer11]

Dont worry about what's stamped on them, They usually either have F or E.. of corse apart from the C l26 cam