what to do

[turbotike]

hey guys just joined, this is my first post yeah i know. anyway i come to u guys for answers i just traded an old vw sand rail for a 92 type m it had a rod knock so i got an engine for 500$ got the engine and a crap load of othere stuff it runs great in the car now. sorry for rambiling, so i need your guys input do i sell the old 20 for what ever i can get, it has cometic gasket and arp studs. or do i build it forged and try to get as much safe power out of it its my daily driver well moast of the tim i have a truck too. but any ways sell it, buy rb25, or built 20??? g can u tell i am board!

thanks guys, p.s. not worred bout money or time just want to do the best option and have some fun..

[r33_gtst]

You can always do a responsive turbo on a stock motor an have good quick fun
Rb25 will have more power from the get go and capable of a reliable 400rwhp on a decent turbo
Both motors built will obviously be better; but if it's a daily car, driven randomly and occasionally beat on... Stock motor wil do you
Good imtercooler, intake and turbo manifolds, exhaust and tuning and your set

[Skym]

With RB25DET, it's not just the electrics that will need to be done (to plug in under dash, etc), you'll need gearbox to suit and that has problems with R32 driveshaft tunnel (not enough air getting around gearbox thus not cooling gearbox), so will require a gearbox oilcooler, pump, etc (well known problem on racetrack). The driveshaft (propshaft) will need to be customised to suit (yoke / front part of driveshaft will need to be from a RB25DET driveshaft, modified to bolt onto RB20DET driveshaft).

With RB20DET you can get 400hp out of stock bottomend for daily use. If want 400whp, at least forged pistons, metal headgasket, upgraded valve springs, ACL bearings, fix oilpump drive problem (fit crank collar). Don't need to do much to a RB20DET.

This is a full on boosted up 400hp or so RB20DET (laggy Greedy TD06 turbo, cams, exhaust manifold, etc) -

http://www.youtube.com/watch?v=_1JlZNPI6MQ

Engine bay -

http://www.youtube.com/watch?v=6lvzBWhskB8

This is a boosted up, very responsive RB25DET (with HKS 2540 turbo on I think is stock exhaust manifold) -

http://www.youtube.com/watch?v=rYa1Ux4qOwM

Both can be fun with the correct mods.

[turbotike]

yup i am convinced thats what ill do then start the build thank u guys so much. my buddy was dissing the rb20 but he drives a gay 2.0lt gen coupe. thanks guys for the great advice







thats her

[turbotike]

i dont want to push it too hard because i dont want to see this on my laptop



......lol

[Skym]

If RB20DET is modified incorrectly, doesn't have a ECU retune to suit, has problems due to age / lack of servicing, it can feel slower. He's probably just noticing that, if had ride in your car.

I would change podfilter to Apexi (That airfilter uses foam and it doesn't filter properly).

Then change BOV to Synapse BOV -

http://synapseengineering.pinnaclecart.com/index.php?p=product&id=646

Also refit stock BOV recirculation piping. Should make engine more responsive.

Then look into getting bigger lph fuelpump + new fuelfilter + new fuelhoses (can crack due to age and cause engine bay fires, so replace them), Nistune for stock ECU and retune. Should be good for roughly around 288hp or so at engine.

You can get 330hp at engine at 1bar with stock RB20DET. With lighter chassis, it's enough to pass a boosted up stock GTR x2 with same restrictions in Targa.

[turbotike]

sick thanks man sssssoooo much for the good advice !!!!!!!!!

[turbotike]

my goodness was it ever hacked !!! glad i have changed it

[turbotike]

skym your new nick name is... link lol jk jk

[Skym]

You're welcome.

Also, thank you for the new nick name.

[r33_gtst]

lol
Bosch 044 fuel pump us your best route, $300 or so. A walbro 255L is only $100
Turbo size is key. This is a vid of my rb25 with holset hx40 which is about te same size if not a touch bigger than a gt35
Car pulls great, lots of top end jam when your abusing it. But response when daily drivin isn't the best. The sacrifice to a big tubo

http://www.youtube.com/watch?v=y_ImDsveHpE&feature=youtube_gdata_player