SO YOU WANT A V8

[SXS]

Dave of Autocraft said once upon a time "its no easy job throwing another engine in there, time, patience and money is all you need".

Another question, what does this do to the weight balance? The 302 is more than twice the weight of an AJP8 I believe... kinda throws away the whole point of a well-balanced sports/supercar really.... I mean if people just want a glorified bodykit, there must be cheaper ways of doing this than using a cerbera to do it! Ahh, what do I know, all IMO...

[chevtrev]

This is just it Ash,the Lsx is pretty light an on par with the RV8 compared to the 302 windsor anchor.
Im not saying its a walk in the park but throwing the engine in is the easy part.
One of my biggies was having big time traction,hence engine now back 130mm and 60mm lower..

[simonsparrow]

I've heard that the 302 Ford with Ali heads is only a little heavier than the RV8, but of course an all-ali LS1 could be about the same.

But the AJP is only about 120Kgs - very light compared to all the options.

I'll be interested to see how Dreadnaught get on, I've thought that the Ford V8 might be a slightly better choice for a Cerbera - if it is more compact.

They do seem to cost a little more to tune than Chev V8s though.

[JR]

simonsparrow said:

I've heard that the 302 Ford with Ali heads is only a little heavier than the RV8, but of course an all-ali LS1 could be about the same. But the AJP is only about 120Kgs - very light compared to all the options.

So that would put the Ford engine at about twice the weight of the AJPV8

Marquis_Rex said:

Am tired of the hype surrounding the RV8 engine. Man, I've heard figures as low as 130 Kgs being banded about for its weight. It's a widely used readily available engine- and there's a lot of tuning knowledge out there for it (some of the tuning is questionable). But lets put things into perspective here: These are the true weights of a late Disco 4 litre engine, compliant with all the modern emissions and refinement criteria. Accessory Drive Belt - (1) 0.341kg Air Cleaner Body 0.977kg Air Cleaner Element 0.299kg Air Cleaner Top 0.467kg Air Flow Meter 0.226kg Air Hose/Duct - (1) 0.325kg Alternator 7.196kg Engine Complete 177.000kg Engine Management - E.C.U. 0.390kg Starter Motor 4.060kg Viscous Coupling 2.942kg Engine Oil 5.676kg The above comes to 200 kgs. Now an earlier vehicle will probably NOT have the reduction gear starter motor fitted and so you can expect that to weigh about 8 kgs, the accessory drive won't be poly belt driven but individually driven So that will weigh quite a bit more. The above also does NOT include the flywheel, which on the Rover is very very heavy compared to it's contemporaries. So we're already looking at way over 220 Kgs. The extra capacity over the 3.5 litre will lose some in the crank area, but because the RV8 doesn't have a fully counterweighted crankshaft- not as much as you might imagine. The block has been reinforced since the early days, but I can't see that adding much more then about 5-6 kgs. So these silly figures of around 140Kgs are Science Fiction.

[simonsparrow]

Who knows? I haven't weighed any of them, maybe some of those doing these conversions can enlighten us.

[boosted ls1]

I think that the chevy will fit with the cross member in place if you use the right pulley arrangements. I also agree that the 400lb chevy isn't much heavier then a 4.6 crossbolted rover engine. In fact, I can make it lighter but not by huge amounts, it's light as is! The chevy has way more potential then the ford but it's still nice to see a ford installation.


Boosted.

[shpub]

No it doesn't - unless you want a take a body off to remove engine option. Even with no pulley it is a problem.

[jellison]

Ford - Please don't!

That is an Iron block Ford motorsport crate lump - you can get the in Cobras - too heavy and too old fashions technology.

Chevy is the way forward.

you can get the chevy as far back as you want if you change the gearbox or if staying t5 get a new shorter propshaft. Shpub - yep may have a bit more space in chim / griff but a tko or t5 should not give proplems if wanting to go back a bit. T56 now that would be a big job tvrolet - respect but must be very front heavy.

Next prog is go. + Wortech get the Purple Throbber tomorrow!

[boosted ls1]

shpub said:

No it doesn't - unless you want a take a body off to remove engine option. Even with no pulley it is a problem.

So even with a vette pulley set up or fwd you still have to relocate the rail? Can the rail be bolted further forward?

Boosted.

[tvrolet]

jellison said:

Ford - Please don't! ...T56 now that would be a big job tvrolet - respect but must be very front heavy!

Mine's a TKO600 though....and that's a big bu66er of a gearbox! Clearance is so tight you can't even get a finger either side, or actoss the top. But it is rated to 600ft/lb

Everything is so tight in mine that the engine/bellhousing/box has to come in and out as one assembly - not enough room to get the gearbox and/or bellhousing in if the engine's there. Praying for no clutch/box problems therefore.

WB

[JR]

tvrolet said:

Everything is so tight in mine that the engine/bellhousing/box has to come in and out as one assembly - not enough room to get the gearbox and/or bellhousing in if the engine's there. Praying for no clutch/box problems therefore.

But isn't your car a Tuscan challenge car and not a T-chassis road car?

[tvrolet]

JR said:

But isn't your car a Tuscan challenge car and not a T-chassis road car?

true...but just responding to reference to me and gearboxes

I'd be interested to know the difference in the engine bay dimensions between all the cars though - tuscan race chassis, cerb v8, cerbs6, tuscan, chimeara and griff. Does anyone actually know the relative dimensions of each?

WB

[JR]

tvrolet said:

true...but just responding to reference to me and gearboxes I'd be interested to know the difference in the engine bay dimensions between all the cars though - tuscan race chassis, cerb v8, cerbs6, tuscan, chimeara and griff. Does anyone actually know the relative dimensions of each?

Fair enough and an excellent question. There have been many contradictory statements on PH but note that Chim and Griff are the same chassis.

[chevtrev]

No measurements but I think engine bay chassis rails in the cars are fairly similar,where they differ is the splay to the tunnel and tunnel crossmember hence lower engine posistion the further back you'll be.
Heater inlet/outlet present some probs on the lsx if your going low(there right against the top chassis rail),but obviously not in a race install.
I'm in the same boat with engine out for the clutch.

>> Edited by chevtrev on Friday 23 September 13:18

[dinkel]

SXS said:

Sooo many conversion projects flying around these days.... I'll stick with my 6 litre supercharged redeveloped AJP thankyou very much... still a wait mind you

What's the status SXS? Any pics to show?

[shpub]

boosted ls1 said:

shpub said: No it doesn't - unless you want a take a body off to remove engine option. Even with no pulley it is a problem. So even with a vette pulley set up or fwd you still have to relocate the rail? Can the rail be bolted further forward? Boosted.

No basically. There are a lot of gotchas. Having taken the car apart down to a chassis has helped identify what works and what causes component foul ups. You can't simply do anything as that causes issues later on.

Just spent two days at Tower View modding the front to address the problems and make the templates for the bits. Sorted out all the front and engine mounts. Looks pretty good but having a big milling machine along the chassis was a big help as I could mill bits instantly to get them right.

Almost got the chassis repaired and modified. Just the body sleeves and mounting plates left to fit and its off to the shot blaster.

[rev-erend]

If anyone wants to use a T5 (very light weight and small) vs something bigger and heavier but is put off by its lack of power handling - check out G Force transmissions they can upgrade it to 500 ~ 600 ft pound torque

www.g-forcetransmissions.com/

[chevtrev]

rev-erend said:

If anyone wants to use a T5 (very light weight and small) vs something bigger and heavier but is put off by its lack of power handling - check out G Force transmissions they can upgrade it to 500 ~ 600 ft pound torque www.g-forcetransmissions.com/

I reckon your on G force commission...

[dinkel]

Maybe another stupid Q: how about the Audi V8? Could be a nice one in 5.0 Cossie tuned form. Weight anyone?

A proven 525 . . .

[rev-erend]

chevtrev said:

rev-erend said: If anyone wants to use a T5 (very light weight and small) vs something bigger and heavier but is put off by its lack of power handling - check out G Force transmissions they can upgrade it to 500 ~ 600 ft pound torque <a href="www.g-forcetransmissions.com/">www.g-forcetransmissions.com/</a> I reckon your on G force commission...

I wish..