What Rods To Buy Rb30det

[Gav]

How trustworthy would a set of custom billet (unforged) titanium rods, based on the rb30 rods plus some beefing up? I have access to some pretty good CNC machines at work and am very tempeted. What about titanium pistons and valves, retainers (oohh I am getting excited again)

I would expect that the reliability of the "titanium" (actually its alloy of titanium, aluminium and vanadium) rods has more to do with the machining process than with the material itself. The reason that forging is so popular is that it retains the advantages of the even microstructure of the billet without introducing "micro faults" caused by machining.

[dontfeelcold]

I would expect that the reliability of the "titanium" (actually its alloy of titanium, aluminium and vanadium) rods has more to do with the machining process than with the material itself. The reason that forging is so popular is that it retains the advantages of the even microstructure of the billet without introducing "micro faults" caused by machining.

micro faults being what? machining marks? heavy cuts? Maybe some stress releiving is necessary.

I did some googling, didn't get much info on titanium pistons, but C300 sounded good. (might be the end of molten pistons, maybe).

[[200]]

Have you priced titanium lately?

I spoke to Argo about getting them made, material alone would be $6,500.

If you can affort it than they would be the best rod you could get if made properly. More durable than aluminium, obviously not as light.

Edited July 5, 2006 by [200]

[Gav]

' date='5 Jul 2006, 02:13 PM' post='2306843']

Have you priced titanium lately?

I spoke to Argo about getting them made, material alone would be $6,500.

If you can affort it than they would be the best rod you could get if made properly. More durable than aluminium, obviously not as light.

Pauter titanium rods

USD 1,350ea equates to just under 11 grand Ozzie for a set of 6 plus shipping. I don't believe there's import duty on goods from the USA anymore, but you may be liable for GST on top.

Edited July 5, 2006 by Gav

[Drift_Mulisha]

SyndeyKid, do u mind if i ask what rev limit you use in your RB30 engines equipped with spool rods? what is the maximum rpm you have used & what is a safe limit for circuit & drift work? ever had a failure related to them? that is damn good value for money for rods that can take 750hp! Cheers.

Edited July 6, 2006 by Drift_Mulisha

[Sydneykid]

SyndeyKid, do u mind if i ask

1. what rev limit you use in your RB30 engines equipped with spool rods?

2. what is the maximum rpm you have used & what is a safe limit for circuit & drift work?

3. ever had a failure related to them?

4. that is damn good value for money for rods that can take 750hp! Cheers.

Responses follow;

1. Who cares about a 7,500 rpm rpm limit when you have 750 bhp at 6,500 rpm and 1 bar of boost at 3,500 rpm. I only rev an engine to make more power (before and after the gearchange) and 750 bhp is plenty with a 3,000 rpm wide power band.

2. The max rpm depends on how you balance it, I am sure the rods would be OK to 8,000 rpm. But if I used that sort of rpm I would be well over 800 bhp which would exceed the BHP limit anyway. I really don’t think that it is important.

3. No failures so far

4. Yep

cheers

[Drift_Mulisha]

Good point SK , cheers for you expertise! by the way what turbo are you using to get response like that & still make 750hp? i was planning on using a GT3540 with 0.63 exh. as response is the main goal but i only planned to make a max of 600hp. Cheers again for your help

[dontfeelcold]

excuse me for a second while I rob a bank to pay for some rods.....

[Sydneykid]

Good point SK , cheers for you expertise! by the way what turbo are you using to get response like that & still make 750hp? i was planning on using a GT3540 with 0.63 exh. as response is the main goal but i only planned to make a max of 600hp. Cheers again for your help

It's not just the turbo, it's camshaft selection, porting, compression ratio, manifold and tuning, tuning, tuning.

But 0.63 is too small for the power target, so 0.8'ish is the go.

cheers

[Deceeve]

Hi can anyone please help me? I"m looking at building an RB26/30 but the block is NA one and aiming for about 500rkwk + NOS. reading through topic it seems the SPOOL rods is the best value for money for which i might go for.

But what's the choice on the REV I beams rod from www.hioctaneracing.com?

I'll be using the new HKS TO4Z with 63T A/R 1.00.

1.With this combination i would like to know which FORGIES would be a good matching, at the same time a good value for money and brings the compresstion ratio to its standard form of 8.5:1 or 8.6:1?

2. What size head gaskets and which type would suit this?

3. what would be the best combination for camshafts choice of duration and lifts for both inlet and exhaust to bring the boost earlier and at the same time allow for higher redline RPM say of 10 000?

4. I'm in sydney where's a good place to get porting the head, nitride, balance, crack test, blue print, o-ring, stress relieve and some other methods of strengthening the durability of the head, crank and block done? How much should i be looking at?

5. In regards to ECU what do you think of the Microtech? as Motec M800 is alittle out of my reach.

Thanks

Edited August 4, 2006 by Deceeve

[r33_racer]

If a motec is outta your reach, then so is making a 26/30 rev to 10k.

That is going to be one expensive engine.

[Deceeve]

If a motec is outta your reach, then so is making a 26/30 rev to 10k.

That is going to be one expensive engine.

Thanks r33_racer,

As much as i love the versatility of the motec if the Microtech can do almost a good job then i would rather go for the Microtech and spend the extra cash towards building the engine.

My budget for building the engine is roughly up to 15k.

[r33_racer]

Yeh my guess was around that figure. 15-20k. That will be one tough engine. Im guessing for drags?

If it counts for anything were using the REV I beam rods from Hioctane in our rb30det Note they dont have the conrod oil squirters in them, so your relying on splash feed from the crank. We havent had any problems yet...

[rob82]

Thanks r33_racer,

As much as i love the versatility of the motec if the Microtech can do almost a good job then i would rather go for the Microtech and spend the extra cash towards building the engine.

My budget for building the engine is roughly up to 15k.

15k worth of motor and your only willing to pay 1k for managment. I dont get this mentality. 15k worth of engine can be rendered worthless very quickly.

[Deceeve]

15k worth of motor and your only willing to pay 1k for managment. I dont get this mentality. 15k worth of engine can be rendered worthless very quickly.

I think the Microtech compares to the Motec is not as bad as you think, it's enough to do it's job. But if i can get it for around 3k then i'll definitely go for it then.

[Deceeve]

Yeh my guess was around that figure. 15-20k. That will be one tough engine. Im guessing for drags?

If it counts for anything were using the REV I beam rods from Hioctane in our rb30det Note they dont have the conrod oil squirters in them, so your relying on splash feed from the crank. We havent had any problems yet...

Some how i think 15-20k is not enough to make an engine all that tough...but it sure is good enough for me when i'm only looking to 550kw at the wheels including NOS.

Yeah the car will be set up for mainly drag races but occasionally 1 or 2 nights on the street that is why i want to use the HKS T04Z because i'm thinking with the 3L capacity boost shouldn't be too laggy. But hell is gonna be a monster. It's too bad that HKS don't make a 3L V-cam system and only the 2.8L kit.

How much BHP are you making so far on the REV I Beam rods?

[r33_racer]

around 400bhp atm, so not much...well actually if it was a shootout mode power figure then it would be about 480bhp. Were still only on a run in tune...full tune will come in the next few weeks. Id imagine up around 550bhp next tune.

[Deceeve]

around 400bhp atm, so not much...well actually if it was a shootout mode power figure then it would be about 480bhp. Were still only on a run in tune...full tune will come in the next few weeks. Id imagine up around 550bhp next tune.

Thanks for that r33_racer. Keep up date if you can.

What mods do you have for your car and what engine you're running? ECU, Turbo? How's the response?

[Spoolup]

Rods are now in stock again.

I also have a special on CP Pistons to suit RB30 and RB30/26/25 ( there are two types available for the RB30 engine using RB25 or RB26 heads, one with 8.5:1 comp the other with 9.0:1 comp )

And I also have a package deal for rods and pistons.

Check it out on my site www.spoolimports.com

Ill be updating more products soon - ARP stud kits, ACL Race bearings, VRS kits etc, all for RB25, RB26 and RB30.

Cheers

[r33_racer]

25/30, powerfc pro, gt35/40 .83ar rear, 850cc sards, vct, ati damper. The response is extremely good, full boost atm is only 18psi, get that by a shade under 3500rpm, redline atm is 7k will be 8.5k after next tune.