Jump to content
SAU Community

Recommended Posts

Low rev limit? LOL look at the boost he is running! I wouldnt rev it that hard either especially since its making nice power relatively early. Especially with a bottom end that is worth dollars...std bottom end. Hell why not rev the ass out of it and wind boost into until your ears bleed as it only owes you $400-600 :thumbsup:

i've only driven it home from dyno in stealth mode...lol i did gas it once... but it's hard to gauge as i was too worried about everything around me (especially coz i was on a trade plate)...

I'm on the track saturday for testing :D

It's only a little bit laggier than my setup with the hks2540 according to the graph

  • 2 weeks later...

I didnt make 260rwkw but i thought i'd share my rb20 powah!

Finally managed to install 256 tomei cams in my rb20 and have it tuned.

Previously made 207rwkw @ CRD with 1.25bar (without cams)

Without any cam timing it managed 225rwkw @ CRD with 1.25bar

With cam timing tweaked for response and torque it made 215rwkw but gained everywhere else.

The map is running much richer.

I dont have a print out, i will ring jim and ask him to fax me one so we can compare against the old tune.

I didnt make 260rwkw but i thought i'd share my rb20 powah!

Finally managed to install 256 tomei cams in my rb20 and have it tuned.

Previously made 207rwkw @ CRD with 1.25bar (without cams)

Without any cam timing it managed 225rwkw @ CRD with 1.25bar

With cam timing tweaked for response and torque it made 215rwkw but gained everywhere else.

The map is running much richer.

I dont have a print out, i will ring jim and ask him to fax me one so we can compare against the old tune.

How much did those cams set you back mate?

PM me if you don't want to post it up :(

for a laugh on the weekend we decided to run mine on the dyno to see what would happen, the motor is tired and breathing hard... but we still decided to give her 25psi :(

366rwhp and afr's that were below 10.0 across the run hahaha, we're still laughing that it held up!!!

300.2hp at 20psi with the wastegate spiking and no boost controller. need to go from 38mm to 44mm to help it out. apparently my 6boost manifold is TO good, love the sound of gate, hits boost early and hard, have to go back as soon as i can afford another gate to get it retuned and a few niggles sorted out. mick recognised the car aswell adam. hes a champion

300.2hp at 20psi with the wastegate spiking and no boost controller. need to go from 38mm to 44mm to help it out. apparently my 6boost manifold is TO good, love the sound of gate, hits boost early and hard, have to go back as soon as i can afford another gate to get it retuned and a few niggles sorted out. mick recognised the car aswell adam. hes a champion

top work mate! should have let me know you were coming down i would have loved to see the finnished setup

get a profec b spec II on it if you havent got an ebc, mick can get it to come on a bit earlier that way. spewin bout the gate being too small, ive heard of 26's with 6boob manis doing the same thing so i can only assume it might be the way the collecter is plumbed?

which ecu did you use on it aswell dude?

My RB20 made 393rwhp or 292rwkw and was pretty much at its limit. It had (to cut the list way short) GT3540R, forged bottom end, LINK ecu, 555cc injectors, 550hp in tank Bosch fuel pump..... It also had stock rods, stock head and stock plenum. Was very laggy and also had very little torque unfortunately so was very strong at the mid and top ends but lacked bottom! Best quarter mile was 12.9 @ 123mph with 2.8 sec 60 footer - the mph was up there for an 11 but you can tell with the 60 footer that I could never get the power down! Now I've gone Tomei-prepped RB25.......

has a profec b spec 2 he disconnected it to stop it goin to 30psi at 4grand, its running straight off engine vaccuum atm. got a EMS stinger in it. yeah mick was saying he's had some xr6t's do the same thing. just reckons there way to efficient. should be back up there in a month

got my tune, i rkn its a pretty responsive setup with nice mid range, but im looking at dumping the apexi turbo and upgrading to a 3037s pro

http://img265.imageshack.us/my.php?image=dynojw2.jpg

tune was done on 18psi

Edited by Justa32

Any modifications needed to fit HKS 256/264 camshafts 10.5m to an RB20 motor?

Is it just a matter of pulling the old ones out and putting the new ones in and would it be best to get adjustable cam gears or will just camshafts + tune be ok?

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Did this end up working? Did you take some pictures?
    • And finally, the front lower mount. It was doubly weird. Firstly, the lower mount is held in with a bracket that has 3 bolts (it also acts as the steering lock stop), and then a nut on the shock lower mount itself. So, remove the 3x 14mm head bolts , then the 17mm nut that holds the shock in. From there, you can't actually remove the shock from the lower mount bolt (took me a while to work that out....) Sadly I don't have a pic of the other side, but the swaybar mounts to the same bolt that holds the shock in. You need to push that swaybar mount/bolt back so the shock can be pulled out past the lower control arm.  In this pic you can see the bolt partly pushed back, but it had to go further than that to release the shock. Once the shock is out, putting the new one in is "reverse of disassembly". Put the top of the shock through at least one hole and put a nut on loosely to hold it in place. Put the lower end in place and push the swaybar mount / shock bolt back in place, then loosely attach the other 2 top nuts. Bolt the bracket back in place with the 14mm head bolts and finally put the nut onto the lower bolt. Done....you have new suspension on your v37!
    • And now to the front.  No pics of the 3 nuts holding the front struts on, they are easy to spot. Undo 2 and leave the closest one on loosely. Underneath we have to deal with the wiring again, but this time its worse because the plug is behind the guard liner. You'll have to decide how much of the guard liner to remove, I undid the lower liner's top, inside and lower clips, but didn't pull it full off the guard. Same issue undoing the plug as at the rear, you need to firmly push the release clip from below while equally firmly gripping the plug body and pulling it out of  the socket. I used my fancy electrical disconnect pliers to get in there There is also one clip for the wiring, unlike at the rear I could not get behind it so just had to lever it up and out.....not in great condition to re-use in future.
    • Onto the rear lower shock mount. It's worth starting with a decent degrease to remove 10+ years of road grime, and perhaps also spray a penetrating oil on the shock lower nut. Don't forget to include the shock wiring and plug in the clean.... Deal with the wiring first; you need to release 2 clips where the wiring goes into the bracket (use long nose pliers behind the bracket to compress the clip so you can reuse it), and the rubber mount slides out, then release the plug.  I found it very hard to unplug, from underneath you can compress the tab with a screwdriver or similar, and gently but firmly pull the plug out of the socket (regular pliers may help but don't put too much pressure on the plastic. The lower mount is straightforward, 17mm nut and you can pull the shock out. As I wasn't putting a standard shock back in, I gave the car side wiring socket a generous gob of dialectric grease to keep crap out in the future. Putting the new shock in is straightforward, feed it into at least 1 of the bolt holes at the top and reach around to put a nut on it to hold it up. Then put on the other 2 top nuts loosely and put the shock onto the lower mounting bolt (you may need to lift the hub a little if the new shock is shorter). Tighten the lower nut and 3 upper nuts and you are done. In my case the BC Racing shocks came assembled for the fronts, but the rears needed to re-use the factory strut tops. For that you need spring compressors to take the pressure off the top nut (they are compressed enough when the spring can move between the top and bottom spring seats. Then a 17mm ring spanner to undo the nut while using an 8mm open spanner to stop the shaft turning (or, if you are really lucky you might get it off with a rattle gun).
    • You will now be able to lift the parcel shelf trim enough to get to the shock cover bolts; if you need to full remove the parcel shelf trim for some reason you also remove the escutcheons around the rear seat release and you will have to unplug the high stop light wiring from the boot. Next up is removal of the bracket; 6 nuts and a bolt Good news, you've finally got to the strut top! Remove the dust cover and the 3 shock mount nuts (perhaps leave 1 on lightly for now....) Same on the other side, but easier now you've done it all before
×
×
  • Create New...