Discussion
SXS said:
I laughed because thats the craziest idea I've heard yet... that chassis was not designed for heavy torque... it wont be just a drop in job... it will need substantial work.... IMO anyway...
Crazy and a lot of work but the chassis was designed for it! Lotus intended to race the Elise in the world sports car championship and I remember seeing the Elise race at LeMans (1995?) 600bhp, handled well and was pretty quick. Unfortunatly the French didn't like it and banned the engine (Lotus V8 twin tubo) shortly before the race. Amazingly Lotus managed to switch the engine to an american V8 but the car didn't last too long in this state.
>> Edited by 19560 on Wednesday 1st December 07:09
Boosted LS1 said:
Well if anybody wants to check their engine bay measurements here are the lsx dimensions and I can make them 3" shorter in length 
Its 25" wide across the widest point (exhaust headers), 24-25" high from pan bottom to top of intake (way less then a rover) and only 25.5" long (2.5" shorter then a rover). As said I can knock off another 3". If you mated it to the t5 you can measure forwards from the gearbox in your car.
I agree that the cerb engine is in keeping with the car and some people will always want to keep it that way. However, the lsx is another very potent option and to some it has to be the 'way to go' powerplant for the future.
Boosted.
How heavy is the LS1?
Needs to be mate. It has to go 100'000 miles on a set of plugs and be cruelly neglected by those pesky americans. Not to mention all the power they get asked to put out, way above and beyond the call of duty. No point fitting a tiddly featherweight if you want something manly
Boosted
Boosted
Boosted LS1 said:
The LS1/X will fit nicely. 400 odd/hp. Thing is, you get a nice fat torque curve, 300 odd lbs/ft at a tad over 2000 rpm. As for costs, under £10k should see it done depending on final specs.
So how does this compare to the real cost of rebuilding the Cerb V8 (inc lifting out etc.)?
Two mates of mine have recenlty had Essex V6 engines rebuilt £3000 all in. I'd say £4000 to £8000 for a Rover V8 based one and £5000 to £10,000 for a Cerb?
[quote=SXS ]Totally understand where you guys are going with this - but - and this is a big but! - the standard Elise chassis is not the same as the Elise GT chassis, well based on what I know about the Elise GT car, which is an amazing machine... Still prefer the Exige though... 
[/quote]
Wasnt planning on leaving it totally wobbly - the chassis would need a little bit of work. Its possible certainly. Exige is all well and good, but the Elise looks more innocent, even to a petrolhead. Part of the charm of the project.
JSG, dont forget that the AJP8 (120-130kilos IIRC?) isnt actually *meant* to be that much heavier than a K-series (120kilos?) I dont think the weight distribution would be hurt too badly actually.
I'll keep paying attention in my Enginnering lectures and see what I can come up with when I get a shed load of cash together...
[/quote] Wasnt planning on leaving it totally wobbly - the chassis would need a little bit of work. Its possible certainly. Exige is all well and good, but the Elise looks more innocent, even to a petrolhead. Part of the charm of the project.
JSG, dont forget that the AJP8 (120-130kilos IIRC?) isnt actually *meant* to be that much heavier than a K-series (120kilos?) I dont think the weight distribution would be hurt too badly actually.
I'll keep paying attention in my Enginnering lectures and see what I can come up with when I get a shed load of cash together...
BCA said:
JSG, dont forget that the AJP8 (120-130kilos IIRC?) isnt actually *meant* to be that much heavier than a K-series (120kilos?) I dont think the weight distribution would be hurt too badly actually.
You may well be right... I wanted an S6 engine in it, though - V8 wasn't the character I was looking for. And the S6 lump weighs more, right? (I didn't randomly throw rubble into the boot! There was a bit of thought in it
)madbob said:
So to stop me contacting “boosted” can anyone guarantee an AJP8 engine to run for 20000 miles without a rebuild? Let me know and I will forget all about this, some might say, expensive idea.
I should probably grab something wooden at this point, but my engine has never been rebuilt, clatter cams'n'all and is now up to 103500 miles.
I agree that a Chev V8 will be lower maintenance and probably easier and cheaper to tune, but a different kind of character from the AJP V8.
When the AJP finaly does go pop, a rebuild will be much cheaper that re-engine-ing the car, and if it lasts for another 100K+ miles, well, I'll be happy.
From what I can see, the main maintenance 'extra' on the AJP compared to other engines is the 12k mile valve clearence shimming. Otherwise its just quality oil, plugs and water - as you would do on any performance engine.
19560 said:
The LS1/X will fit nicely. 400 odd/hp. Thing is, you get a nice fat torque curve, 300 odd lbs/ft at a tad over 2000 rpm. As for costs, under £10k should see it done depending on final specs.
So how does this compare to the real cost of rebuilding the Cerb V8 (inc lifting out etc.)?
Two mates of mine have recenlty had Essex V6 engines rebuilt £3000 all in. I'd say £4000 to £8000 for a Rover V8 based one and £5000 to £10,000 for a Cerb?
I can't comment on cerb prices but I can build a 400 hp engine to suit the install, complete with a custom mapped ecu, etc for £8.5 ish. I reckon it could be fitted for £10k or less.
As for re-engineering, I don't anticipate any as such. I'd mate it to the stock drivetrain, use bolt on engine mounts and try to mate it to as many existing parts as possible. These engines make 320 odd lbs/ft at just over 2000 rpm and 400 odd lbs/ft further up the range. I've seen 1000 hp motors already so the potential has to be there. It's maybe not the sort of thing you would do to a pristine cerb but one that needs a revamp might be a suitable candidate.
Boosted.
rusty crate that it is at the moment 350matt said:
Has the 100K AJP V8 needed a timing chain? and the replacement of the auxilary ( Oil, water, power steering pumps) driveshaft?
Matt
Not so far, we're into uncharted territory here, I don't think even the factory has experience of AJP engines at this milage. I spoke to TVR power, and if you have aircon its an engine out job to replace.
Its now a question of whether my nerve or the chain fails first
Gassing Station | TVR Major Mods | Top of Page | What's New | My Stuff