A Boy's Love For His Rb20

[Ryno]

That gear box mount looks familiar!

I got the guys at Vibra Technics to make that mount - good to see it hasn't just been a one off for me!

I've been considering swapping my rear cradle to an R33 one for a wile now.

What offset bushes did you use?

How much wider did the track end up?

If I do it, I'll still be using the stock arms as mine is a daily, so trying to work out how much I'll have to flare my gaurds.

[Ryno]

Also do you think the swap has been worth it?

Have you noticed better traction/squat etc?

Edited April 11, 2016 by Ryno

[Roy]

The car is on blocks still So who knows...

I am mainly doing it for strength as the 32 cradle had cracks and long term with the new engine thicker shafts isnt a bad thing. Meant new shocks and diff which sux but everything is new do will be mega.

Running GKtech offset diff bushes

I dont think the rear is any wider. I think the wider track is from the offset and width of wheels...but would have to check again

The mount is neat. I run their gear in my Cossie and gets the job done

[Gerry Giraffe]

Any more updates on this? Love this build thread[emoji108]

[Roy]

Yeh, slowly getting it together. I am slowly slapping it all back together including some new little projects that I am keen to try. Also selling off all th ebits off my built RB25 while its healthy to help fund the new engine I am piecing together. The recent Euro trip to Monaco and tom-foolery hurt the budget so still slugging away with a small spend per month. Hope to have it back on the road tuned with the new Kinda surprise motor by Xmas and summer. Lol wanted to put A/C back in the car so used that as silly justification for a new engine

[admS15]

Wants AC, Gets new engine to fit it. I like the way you think[emoji106]

[Roy]

Baby steps doing dome work a few nights this week. 

Got thre front end all back together with Nismo inner upper mount. Alloy hubs, modded Ikeya LCA, Noltec upper arm and all new king pin bearings and wheel bearings. New RCA tie rod ends. In the rear got the new diff gusseted cradle all dummy fitted with Nismo inner pick up braces all dummy fitted.  So over weekend will grease up all the bushes and get that all bolted home too

[JZP]

Looks soooo puuuurdy 

[jimstah87]

Hey Roy nice write up mate. I'm considering the Tomei Poncam 256/8.5mm for my unopened RB20 soon. Would you say that they give enough benefit to be a worth purchase? Currently have 290whp with a Garrett GTX2860r and all quality supporting mods. Stock intake and exhaust manifolds. Am considering going with a Garrett GTX3071r if the cams prove to bring on power earlier with the current turbo as this is a street car and doesn't see the track. Cheers.

[Roy]

Std cams work just fine i.o. Some ppl make cams work for them others dont.  For sure the $1000 in parts and tuning dont equate to a step change in performance imo. If its a street car just make sure you have cam gears. On std cams they made a bigger change then aftermarket cams.

 

I reckon if i still had the RB20 with punchy power i would slap a 4.6 diff it....110 highway cruising would be a little more painful but imo gear the things like a rotary crown wheel and pinion cheaper than cams

[Wheezy]

Hey Roy.
Still got the long motor 25de you built going back in?

Or its gone and 26 time?

[Roy]

Yeh. Now got twin -5s in what looks like an RB20DETT Even  gone back to std inlet.

Lol...have another motor but just want to play with the built 25DE a bit longer. Also easier for a buyer to hand over cash for an engine they can drive/listen/hear. Then just slap everything onto new motor which is VCT RB26

[Piggaz]

Twin -5's on a 25 DE? Did I read that correctly?

Why? 

[Roy]

Tired of 6poop T67 setup so sold it and slapping this together.

Its crap...but at least im not part of the single turbo flat cap brigade 

[Wheezy]

Flap peak for life!!!

If 25de'd were cheap like they were 10 years ago I would almost go down a similar route.

I've seen one other R33 RB25 TT.
An R31 passage, customer car at R31 house.

Think it had an FCon ECU.
Was pretty impressive

[iruvyouskyrine]

I thought i was wasting my time with EFR6758 on an RB20 but i think twin -5 25DE takes the cake 

[Roy]

Mate...a TD06-20G on a properly bolted together and tuned car was fast. A 6758 will be a good thing ...only i have never seen an RB20 deliver giod results on std exhaust manidolds so will be interesting to see how a 6758 goes

[iruvyouskyrine]

Lucky its not a standard manifold. Twinscroll T4 mani with twin 40mm turbosmart compgates and the appropriate Twinscroll T4 0.80A/R housing for the turbo!

[Roy]

Will be a weapon!!!

[Wheezy]

Tired of 6poop T67 setup so sold it and slapping this together.
Its crap...but at least im not part of the single turbo flat cap brigade 

Don't have any other TD06SH or T67s lying around still?

Need to do something about my L2 being too small for an rb25