Rb30 Head On 25 Block

[pf.]

I am a mechanic guys I have been involved with and have driven very fast cars I want a turbo yes but I don't froth over turbos like some.

I don't mind having less power if I can use the power I have IE: racetrack style torque profiles.

I have seen rb30 heads that flow enough for 330hp which would want my engine to spin at about the mark I am looking for 8k which is where I will be shooting.

My engine stand comes soon dedicated to this build pistons are next $700 ill be contacting crankshaft rebuilders for a price to do the crank and I am thinking 26 rods.

The head is back to me before machining so I can work out belt's and other little things a mate just blew to 30's at the mattsuri comp so ill be having one for bolts and other parts.

Edited May 18, 2013 by pf.

[pf.]

Look guys I can try and make a engine that has 11ty hp (which is next build) but I want to do this I have no care for how big my cock is.

[Dobz]

Please explain "racetrack style torque profiles"?

[MBS206]

Please explain "racetrack style torque profiles"?

Give no f**k for anything below 3/4 Thousand RPM.

[pf.]

Yea pretty much as long as you keep the engine over a certain rpm it will be responsive as f**k.

[89CAL]

Yea pretty much as long as you keep the engine over a certain rpm it will be responsive as f**k.

Like a turbo car.......?

[mad082]

Just without the power.....

[Dobz]

Give no f**k for anything below 3/4 Thousand RPM.

Yeah it was just the "torque" part I was most confused with. Will this engine even develop any real torque?

[MBS206]

Like a turbo car.......?

Nothing like a turbo car. The power will actually be instantaneous. If you have a turbo that comes on only over 4K, even once you're over those revs and stand on it, it takes time for power to appear. Sounds like some people may be surprised at how much a very driveable lower powered engine can still pull a lap time down.

[89CAL]

I know, I used to have a cammed RB30 NA. Power and Torque was nice. Not blowing anything away but it was a nice delivery.

I'm just saying, theres a reason why car/engine manufacturers are going DOHC or Quad cam when in V configuration. Just remember there is no VCT with the RB30 head

But anyway, I'm not going to say anymore. Advice has been given, noone is forced to take advice, and thats fine. Everyone is entitled to their own opinion etc.

[bozodos]

gee I dunno, the LT1 is still a single cam V engine, and smaller capacity than its predecessors

[89CAL]

Ls1? Chev are oldschool lol

[MBS206]

Ls1? Chev are oldschool lol

No, the LT1.

And how are chev oldschool?

[discoPumpkin]

with e85 u can run much higher then normal comp on a turbo so it will run similar to that of NA giving more 'instant torque' (off boost)

[89CAL]

Oh ok. So whats an lt1? Feel like I should know.

[Captain Natro]

Ffs google people... http://en.m.wikipedia.org/wiki/GM_LT_engine#LT1

Anyway back on topic

[bozodos]

i actually meant the 5.5l new small block lol

[t5iv]

What the puck did I just read?

[mad082]

i actually meant the 5.5l new small block lol

But that is a smaller engine with new tech. A bit like how the rb25 was better than the rb30. However in this case the op is taking the smaller, newer engine and bolting on the old tech.

[bozodos]

I was more implying that dual and quad cam does not necessarily a better motor make.