Swapping in a larger capacity block?

[panic]

What if i swapped into my 500 engine a larger capacity blk and (forged) pistons (5.3 ltr?), leaving everything else without any mod? what would eventually be the power/torque increases?

Edited by panic on Thursday 21st August 16:08

[The AJP Griff]

You'd end up with more torque,but little extra bhp i suspect.Youd also have a 5.3 engine developing no where near it's potential.Personally i'd spend the cash on releasing the potential of the 5.0 engine.

[griffdude]

Have you thought of fitting some tuned manifolds? Have a look at http://www.v8enhancements.co.uk
Look at the power graphs.

[Pasco]

The AJP Griff said:

You'd end up with more torque,but little extra bhp i suspect.Youd also have a 5.3 engine developing no where near it's potential.Personally i'd spend the cash on releasing the potential of the 5.0 engine.

Yep Mike had 354hp out of his 5ltr

[panic]

Pasco said:

The AJP Griff said:

You'd end up with more torque,but little extra bhp i suspect.Youd also have a 5.3 engine developing no where near it's potential.Personally i'd spend the cash on releasing the potential of the 5.0 engine.

Yep Mike had 354hp out of his 5ltr

Yeaa...but i want an easy mod out of the box, i guess to get 345hp fm the 5 ltr you need to go aftermarket ecu, more radical cams and plenty of headhaking (...and expensive) mods, am i wrong?

[LordGrover]

Slightly O/T. When we say we'd like more power, is it really torque we're after? Which is it that gives us that satisfying push in the back?

[panic]

LordGrover said:

Slightly O/T. When we say we'd like more power, is it really torque we're after? Which is it that gives us that satisfying push in the back?

I personally like both...the mid range push tipical of large displacement engines and a bit more of urgency also on top end...

[The AJP Griff]

LordGrover said:

Slightly O/T. When we say we'd like more power, is it really torque we're after? Which is it that gives us that satisfying push in the back?

I like my torque biased towards the top end,ie more peak bhp.I always wanted my power with the RV8 to peak as far up the revs as was practical,as the way i saw it you already had plenty low down!It is the low down torque that gives you the shove in the back from a standstill,but If my Tuscan only tought me one thing,it was that i really wanted my power high up the revs.My tuscan never felt quicker than my std griff off the line,but in reality it was a much quicker car,and just kept going well after the Griff ran out of puff!
Pasco,can i give you a call later,please mate?

Edited by The AJP Griff on Thursday 21st August 16:20

[rev-erend]

The AJP Griff said:

LordGrover said:

Slightly O/T. When we say we'd like more power, is it really torque we're after? Which is it that gives us that satisfying push in the back?

I like my torque biased towards the top end,ie more peak bhp.I always wanted my power with the RV8 to peak as far up the revs as was practical,as the way i saw it you already had plenty low down!It is the low down torque that gives you the shove in the back from a standstill,but If my Tuscan only tought me one thing,it was that i really wanted my power high up the revs.My tuscan never felt quicker than my std griff off the line,but in reality it was a much quicker car,and just kept going well after the Griff ran out of puff!
Pasco,can i give you a call later,please mate?

Edited by The AJP Griff on Thursday 21st August 16:20

I notice a similar thing with my T350 and SEAC or when following Tuscans in SEAC or Griffith 500 ..

The S6 engined cars - could out accelelate the RV8 cars out of corners .. and his I believe is down to having a top end punch with less low down torque.. more like a race engine.

[Markh]

Pasco said:

The AJP Griff said:

You'd end up with more torque,but little extra bhp i suspect.Youd also have a 5.3 engine developing no where near it's potential.Personally i'd spend the cash on releasing the potential of the 5.0 engine.

Yep Mike had 354hp out of his 5ltr

Hi Jamie, at CRE just did mine 368 bhp/393 ftlbs, must say I was rather pleased

[rev-erend]

Markh said:

Pasco said:

The AJP Griff said:

You'd end up with more torque,but little extra bhp i suspect.Youd also have a 5.3 engine developing no where near it's potential.Personally i'd spend the cash on releasing the potential of the 5.0 engine.

Yep Mike had 354hp out of his 5ltr

Hi Jamie, at CRE just did mine 368 bhp/393 ftlbs, must say I was rather pleased

That's good from a 4.5 !

[Pasco]

The AJP Griff said:

LordGrover said:

Slightly O/T. When we say we'd like more power, is it really torque we're after? Which is it that gives us that satisfying push in the back?

I like my torque biased towards the top end,ie more peak bhp.I always wanted my power with the RV8 to peak as far up the revs as was practical,as the way i saw it you already had plenty low down!It is the low down torque that gives you the shove in the back from a standstill,but If my Tuscan only tought me one thing,it was that i really wanted my power high up the revs.My tuscan never felt quicker than my std griff off the line,but in reality it was a much quicker car,and just kept going well after the Griff ran out of puff!
Pasco,can i give you a call later,please mate?

Edited by The AJP Griff on Thursday 21st August 16:20

Sorry buddy been watching cricket at Derby tonight just got home Hik

[Pasco]

rev-erend said:

Markh said:

Pasco said:

The AJP Griff said:

You'd end up with more torque,but little extra bhp i suspect.Youd also have a 5.3 engine developing no where near it's potential.Personally i'd spend the cash on releasing the potential of the 5.0 engine.

Yep Mike had 354hp out of his 5ltr

Hi Jamie, at CRE just did mine 368 bhp/393 ftlbs, must say I was rather pleased

That's good from a 4.5 !

What spec are you running to get that fantastic figure mate ?

[Markh]

rev-erend said:

Markh said:

Pasco said:

The AJP Griff said:

You'd end up with more torque,but little extra bhp i suspect.Youd also have a 5.3 engine developing no where near it's potential.Personally i'd spend the cash on releasing the potential of the 5.0 engine.

Yep Mike had 354hp out of his 5ltr

Hi Jamie, at CRE just did mine 368 bhp/393 ftlbs, must say I was rather pleased

That's good from a 4.5 !

Yes it would be! sorry forgot to say its a bit bigger these days