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Old 17th August 2011, 10:46 PM   #1 (permalink)
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more power from RB20DE?????

elo guys . i got a skyline with the 2ltr non turbo lump in it .. now before you say it .. no i dont have the money to chuck an RB25DET in it lol ... i was wondering how easy it is to unlock power from this engine .. its allready got the usuall cone filter and exhaust system on it but it just feels crap with power ... any hints and tips?????
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Old 17th August 2011, 10:48 PM   #2 (permalink)
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I think your 'pissing on the wind' trying to enhance your engine when turbo variants are available.
I know someone with a RB20DET going cheap.
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Old 17th August 2011, 11:02 PM   #3 (permalink)
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price??? yeah i thought so lol .. i got the 2 ltr 1 cause i wanted more fuel economy .. but going from a 400 bhp astra GSI to this 150 odd (what ever hp it is) i just cant handle it lol
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Old 18th August 2011, 08:07 AM   #4 (permalink)
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Quote:
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400 bhp astra GSI
Mmm... Was it the 4 litre version, v8?

Now seriously, get yourself a rb25det
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Old 18th August 2011, 08:47 AM   #5 (permalink)
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Performance or economy is the choice, having both is rarely an option. Better to stay as you are otherwise you'll spend endless amounts getting back to where you were with the Astra and for what? You'll wish you'd kept the car you had.
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Old 18th August 2011, 09:14 AM   #6 (permalink)
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i got the 2 ltr 1 cause i wanted more fuel economy ..
Turbo`s are great for increasing and engines efficiency if you can resist opening the throttle too much.

The 2.0 Turbo if properly looked after should give better gas mileage and a bit more power when needed, Believe it or not
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Old 18th August 2011, 11:34 AM   #7 (permalink)
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Tuning a naturally aspirated engine means uprated cams, tuned equal length exhaust manifolds, development work on the exhaust, intake runners, increasing the rev limit which often means uprating the internals to cope with the higher engine speeds, and engine management to make the most of the mods etc etc...

A lot cheaper to buy the turbo lump and drop that in
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Old 18th August 2011, 12:01 PM   #8 (permalink)
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....lost cause! Cut your losses, and dump the lump.

RB25DET
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Old 18th August 2011, 12:08 PM   #9 (permalink)
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If you want a cheap vaguely economical option then an SR20DET from a 200SX has been done it the past. The engine itself is pretty cheap, not sure how much fab work is required to make it fit though.
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Old 18th August 2011, 02:02 PM   #10 (permalink)
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I'll get a price on the RB20DET for you.
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Old 18th August 2011, 02:09 PM   #11 (permalink)
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LS7 engine? Still N/A and quite punchy
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Old 18th August 2011, 09:06 PM   #12 (permalink)
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Ummm yeah ..


The problem is and I will assume you have an R32 or 33, that the non turbo cars have 4 stud wheels and small brakes...no slippery
So even if you are given a turbo engine, it will still need the T brakes and hubs etc: ...bla bla
My R33 4 door (2.5 atmo) is the facelift one with the T brakes etc: I bought it with the intention of repowering it one day ...
That was 6 years ago ...
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Old 18th August 2011, 09:39 PM   #13 (permalink)
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Ummm yeah ..


The problem is and I will assume you have an R32 or 33, that the non turbo cars have 4 stud wheels and small brakes...no slippery
So even if you are given a turbo engine, it will still need the T brakes and hubs etc: ...bla bla
My R33 4 door (2.5 atmo) is the facelift one with the T brakes etc: I bought it with the intention of repowering it one day ...
That was 6 years ago ...
...Hang on....You bought a what?
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Old 18th August 2011, 10:21 PM   #14 (permalink)
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Originally Posted by GT-R Glenn View Post
Ummm yeah ..


The problem is and I will assume you have an R32 or 33, that the non turbo cars have 4 stud wheels and small brakes...no slippery
So even if you are given a turbo engine, it will still need the T brakes and hubs etc: ...bla bla
My R33 4 door (2.5 atmo) is the facelift one with the T brakes etc: I bought it with the intention of repowering it one day ...
That was 6 years ago ...
cheers for that ifo but i hvae already found that out il keep the 4 stud hubs . i have a friend that can redrill discs (done it for me in the past , my astra have 4 stud but i have 5 stud saab 308 discs the 1 bit of info i need is are the carriers the same .. i mean say the GTR carriers fit on my 4 stud hubs? if so il just redrill the discs and get GTS-t or gtr callipers ... im guna do the breaks before the engine anyway ... theres a car thats been dumped at my work , a STAGEA (justfour or somthing) its auto but i think its got the 25det engine ... any problems swaping the engine from auto to manual as i was planning to use my box atm????
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Old 19th August 2011, 01:44 AM   #15 (permalink)
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Quote:
...Hang on....You bought a what?
Yeah, The Mrs drives it ...
Been really reliable :P
(the car I mean)
In my defense Im down to only 5 cars now ...
Yeah...I thought I might drop some kind of small block into it one day ...probably still will
Its a pretty cool car...quite rare I think ...
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Old 19th August 2011, 03:38 AM   #16 (permalink)
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Yeah, The Mrs drives it ...
Been really reliable :P
(the car I mean)
In my defense Im down to only 5 cars now ...
Yeah...I thought I might drop some kind of small block into it one day ...probably still will
Its a pretty cool car...quite rare I think ...
...But it's a.....WHALE!
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Old 19th August 2011, 01:49 PM   #17 (permalink)
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Drop the Astra engine in it

Just kiddin mate! It is possible to get some power out of a NA RB but you need to spend alot of money so it`ll be alot cheaper long-term if you go turbo.
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Old 19th August 2011, 01:54 PM   #18 (permalink)
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Bolt turbo gear (factory rb20det) onto the NA donk, high comp turbo setup should give a good result if funds are limited.
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Old 22nd August 2011, 11:34 AM   #19 (permalink)
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Quote:
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cheers for that ifo but i hvae already found that out il keep the 4 stud hubs . i have a friend that can redrill discs (done it for me in the past , my astra have 4 stud but i have 5 stud saab 308 discs the 1 bit of info i need is are the carriers the same .. i mean say the GTR carriers fit on my 4 stud hubs? if so il just redrill the discs and get GTS-t or gtr callipers ... im guna do the breaks before the engine anyway ... theres a car thats been dumped at my work , a STAGEA (justfour or somthing) its auto but i think its got the 25det engine ... any problems swaping the engine from auto to manual as i was planning to use my box atm????
R33 GTS-T brakes make a cost effective upgrade- you said you were on a budget and the GTR brakes command a premium price. They will bolt onto the hubs without difficulty, redrill the GTS-T discs to 4 x 114.3

That Stagea engine will drop into your chassis without any ultra major dramas...
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