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Read this before posting about RB20 Engines in VL's

Started by carcrazy · 20 Sept 2002 · 87 replies

Preserved from CalaisTurbo. Original authors and dates are shown; archived members are not current Holdcom accounts.

brownyArchived member
No way, RB26's are crap. Only designed for econo shi tboxes. Better off putting in something like a starfire four.
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ishedArchived member
i am about to go rb26ett in a GTR ,,,from a calais turbo... the 26 cant be that crapcan it as it was designed for the R32 racing ! it would have much more to do with the bolt ons wouldnt it ?
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jordyArchived member
lol, you aren't taking that seriously are you mate? You must not know what a starfire 4 is?
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ishedArchived member
nup sorry ..... i have suspision that its the old commy 4 cylinder as i type this reply .... good one browny .... you got me :Pb
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jordyArchived member
hahahaha yesss that's exactly what it is, the 1.9 litre 4 banger
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ishedArchived member
lol i knew it as i was typing ... i stole parts outta them for my 235 ... been so long ago.... And browny ya bugger ...
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vl87ngnArchived member
Hi Guys sorry I'm new to this forum thing but just curious I bought a VLT motor and ecu and tranny with all tha fruit for 450 buks but the head is cracked just wondering can I put the N/A head on the VLT block and use the VLT intake and exhaust setup without any dramas ???? please HELP ! IT's a rb30et but my NA rb30e is not pokey enough need MORE POWER ! can I swap the heads over at all ?
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vl87ngnArchived member
Please any1 with any info email me on [email removed] I used to be a ford fan but I got converted to a die hard VL fanatic! please excuse the horrible email addy! ahahah
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brownyArchived member
Mate it's probably best to start a new thread for this sort of question.
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WHUMPSHArchived member
OK i have read all the posts and i agree the views of some people are some what DISTORTED. everyone has there own ideas and view on the subject but it all come down to personal experience or mechanical experience. Japan has been doing it better for ages In japan in 1989 there was a race series like our clipsal 500 or grand prix where a bunch of turbos were raced and then they released the r32 gtr (godzilla) and it (that type of car) won 17 out of 18 races the it was raced in and because of this the japs abolished the series. The japs also provided all you's with what you call a turbo through there designing and engineering. you look at them and say that they ar still making inline sixes and the fact of the matter is that an inline six is still making the passes down the qtr mile (in the turbo class) that are top of their class. even in the new r34 they put an inline six in it. Quote: Originally Posted by browny No way, RB26's are crap. Now we will start with the rb26DETT. A.K.A. GODZILLA MOTOR The rb26 is a 2.6 litre motor that has a twin cam head ( now those few words - twin cam is like getting 50% extra free on you 1 litre milk). twin cam heads flow more than singles so much more that when it comes down to it your going to have more middle range power rather than 2500-3000rpm to 5000-5500rpm on manual vlt.when i say more middle range power i mean between 4000 and 8000 rpm. The rb26 can also be bored out to 2.8 litre (almost a 3.0 litre). it offers 2 turbos of one rather large one (T88D). Japan's transport authority\or standards commisson(what ever our aust standards is to them) is also like ours where they put down a limit to how much power cars can come out with from factory. This is the case so much that with just a few minior mods to the rb26 engine you can come up with comsiderable gains of upto 50rwkw (using an exaust and removing boost valve stopper and tuning ecu). and the engine does not have very many limits i have heard of high power gtr's all the time Quote: if the cars power plant is it's engine, then put a rb26 in a vl and crank that power now for the rb25det 2.5litre twin cam ( <- there it is again) single turbo the rb25 offers an extra half a litre over it younger brother (rb20). it was made for the r33 skyline and has a small amount extra of power but not that much. A rb25 stock motor will not handle as much power as a rb20. These engines have also been detuned to meet regulations. but at the end of the day if you put a rb25 and a rb20 side by side and spent $3000 - $4000 on them the rb25 would onlu give you a max of 50 extra rwkw. the rb20det 2.0litre twin cam (<- there it is again, the japs must be on to something) single turbo the rb20 is a almost bullet proof engine allowing the internals to cope with upto 400kw of raw power through bolt on parts before the internals have to be changed or modified. They are also detuned and waiting for an exhaust to be bolted on.and from experience of being beaten in my vlct rb20 conversions are good if there done right and the engine has the right bolt ons In posting this i hope it helps in resolving some issues
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brownyArchived member
400kW from an RB20? Sure you don't mean 400HP? I wonder why most skyline guys don't get much more than 220-230rwkW from the RB20. Even the more hardcore guys seem to max out at around the 250-260rwkW mark. At the end of the day, each of the above engines has potential to produce more power than you will ever actually need on the street. My 'RB26 are crap' comment was a joke and if you can't figure that out then I'm hesitant to put much value on the rest of your post (which BTW comes across as a mix of magazine crap, forum ramblings and heresay).
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WHUMPSHArchived member
Quote: which BTW comes across as a mix of magazine crap, forum ramblings and heresay it is not actually either it plain mechanical knowledge and personal experience and i sorry that i didn't reconise that it was a joke it was late and i had just finished rebuilding and installing and rb30 into a vl. and yes i did make a mistake it is 400hp sorry again
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ishedArchived member
hilarious....
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Stewart10Archived member
that was a very very good post WHUMPSH! I think that with the rb26, out to 2.8 L with a few bolt on mods such as exhaust, a good air intake system setup so it gets some nice cold air, you will be going very very fast indeed
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V-SpecArchived member
i got the other end of the scale, rb30e +t 9:1 CR, i can drive everywhere off boost and its great get good ecomony if i drive like a granny i end up flooring it alot though
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SHYPSIArchived member
i was looking on the net about a year ago and over in jap land they had a R32 skyline with a rb20det motor in it making over 1000BHP. i will try to look it up again. i think rb20det is just as good as the rb30et u just have to put more money in to the rb20 to get the power.
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I want 1Archived member
Just a quick question for anyone who has a RB20 in their VL...... Wats the better turbo for this motor on stock set up with a cooler? Standard rb20 turbo or a rb25 turbo? And is there much difference between the two?
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brownyArchived member
RB25 turbo is a pretty popular budget upgrade for RB20. AFAIK pretty much bolt on, maybe a bit of fiddling with oil/water lines (however make sure you get the compressor outlet elbow with the turbo because they aren't interchangeable between 20/25). Like the RB20 turbo it's limited by the ceramic turbine wheel which are prone to fail at too much boost or sustained high temps (eg I've heard of them being killed after flogging around a track at so called 'safe' boost levels). It's been a while since I've look at this but but power wise I think people were getting around the 180-190rwkW from the 25 turbos. Could probably get more out of it but it might become a time bomb.
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I want 1Archived member
Ask a simple question get a straight answer, too easy. Cheers browny, appreciate your help.
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NadeArchived member
I got an RB20 with a five speed.....4:11 diff.....revs hard and isn't slow off the mark either....don't have many turboed VL's in NZ.....but then I also have an RB30e in another VL thats begging for a turbo Some original photos have not been recovered yet.
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