The 18R-GTE reference manual ...

[o_man_ra23]

My W58 with all attachments from an RT142 was $300 from a wrecker.

[Norbie]

w57's have the highest 5th of all w series boxes. and lower power rating than 58 so would go cheaper of corse.

Wrong on both counts. W58 has the tallest 5th gear ratio (0.783:1), and W57/58 refers to the gearset ratios only and has NOTHING to do with the strength of the internal components. Early W57 and W58 transmissions are pretty much identical internally, take it from someone who has had them apart side by side.

[Gumwah]

Wrong on both counts. W58 has the tallest 5th gear ratio (0.783:1), and W57/58 refers to the gearset ratios only and has NOTHING to do with the strength of the internal components. Early W57 and W58 transmissions are pretty much identical internally, take it from someone who has had them apart side by side.

i meant higher ratio not higher as in longer gear.
with power i was going by what i have heard off others and other websites.

Roadkill and o_man_ra23

going to the wreckers totally slipped my mind, although there aint many around here ill still go for a look, and the reason i want a 58 over a 55 is the longer gears especially 5th. quick question, could a w58 5th gear be put in a w55/57?

[roadkill]

Hi,

i couldn't say for sure but it should go in a 57. dunno bout the 55. Before goin nuts about the 57/58 idea or and swapping over gears - is it THAT important of a deal? Are you going to be doing alot of highway driving? Are you racing with this car? What are the intentions with it. 180kw atw is decent power without being nuts but you might wanna also look at where your torque curve at whatever revs the engine will be doing with both gears? You might find that if you bury your foot at 100k's with the 58 that it won't do much, whereas the 57 it'll get pretty exciting!

Just food for thought as i had the same ideas in my head and kinda hence why i went the 57. The amount i got it for and the ease of getting it far outweighed how much i could ***save*** with the little to no highway driving i do.

btw 57's have a 0.86 or so 5th gear.

bEn

[Gumwah]

at first it was just going to be a weekend driver and have a cheap runabout to get to work. but paying for an extra reg and warrant, as well as the car itself and maintenance might not weigh up. I use the motorway quite a lot so yeh a longer 5th would be better for fuel and i also go home about 6 times a year (260km away) although i will still consider a 55 or 57 if a good deal comes up.

Also I had a reply from kelford cams and they said the stock cams are still good for 180rwkw, any idea what the max power is that they are good for?

[roadkill]

Hi,

now that i would like to see.

18rg turbo. Roughly 250kw/fw with stock cams. Did they happen to go into any detail of what else might need to be done otherwise? Would be interesting to see if they claim they have done it before.

bEn

[Gumwah]

nah i asked about other internals when i asked about the cams but they only commented on the cams. im going to get forged pistons anyway, the rest i wont need to forge so will just see what condition they're in and go from there.

if anyone can comment on valves and springs that would help.

[river]

Hi,

You're going to need a very well built 18R-GTE to pump out 250kw at the wheels, and it will cost a hefty sum of money.

seeyuzz
river

[Gumwah]

lol im only going for 180, but that'll be max, ill turn the boost down once i find out what gives me 180ish. im not going for performance, im just making my corona better, sweet car that can pull when i need it to. pretty shit when you're one deep driving up a hill and have to slap it down to 3rd just to keep above 80 lol. couple mates have evo's, they're going for power so that'll do me for speed.

[roadkill]

Hi,

something to keep in mind. Your looking at getting roughly 3 times the standard horsepower out of a 30 yr old engine.

I think you'll get it but its reliability would be questionable.

Meh, would be cool to see it regardless!

bEn

[Gumwah]

well im unsure if you've been following this thread but quite a few people have done it and havent heard any complaints, and they're going for a lot more ponies than me. ill be upgrading most of the cooling so it definately wont over-heat, also steel head gasket and stronger studs/bolts where needed.

[roadkill]

Hi,

you should make note that none of these engines are actually running yet! And i'm fairly sure some of them have custom rods - Steve M does from memory. I think a few have at least got shot peened rods too. I know there were a few around about 10-15 years ago with the hks kits but seems that there are very little to none with dyno sheets.

bEn

[river]

Hi,

Agreed. None of the supposed big horsepower 18R-GTE engines are running yet. I know of two that are completed, but are in the progress of being put into the vehicles, so it can be a few weeks or months before we see what power they make.

I know of two other 18R-GTE engines that are near the end of their build. So I assume it wll be some months before they are in-situ and we can see what they pull on the dyno. And no doubt there are a few others in various stages of being built.

These engines are running forged pistons and other custom parts, depending upon the owners request between horsepower/reliability/streetability.

I am not sure what power the HKS turbo provided, but I don't think it would be as much as the engines that are being built now with fuel-injection, custom components, forged pistons and the latest generation ECUs.

seeyuzz
river

[o_man_ra23]

I'm going with the low power, high reliability, stock internal route. Just wanted mid range torque really. And am currently nutting out issues while cranking (yup, cranking.... done more revs than your motor no doubt Rivsy )

As a side note, I think I have a battery voltage issue, involving not enough of said battery volts. Basically it seems my motor is cranking too slow and only producing about 0.12 volts AC out of the VR sensor where it should be closer to about 0.5. It must be just on the verge of the ECU picking it up as the RPM has read multiple pulses on at least 3 occasions, but not enough to warrant jubilation. So with a few hours of battery charging on the morrow, I will see what I can get out of it.

[river]

Hi,

Everyone's 18R-G has done more revs than the engine in The 88.

But, then again, she's been in car since 1973 and never been removed or needed any major work, never died on me, she'salways started - and for that I can only assume its been the loving way its been treated that has given me such longetivity and great service.

Also, The 88 has travelled a gob-smacking 80kms the past 12 months - so, she's not really being worn out either.

seeyuzz
river