ls6 or carbed engine
Discussion
I think a carbed engine is the way to go for me. Cats are not required in my area. however If I use a carbed engine I can do my own maintanence. I would have to take an ls1 to a chevy dealer or a vette specilest. I got my eye on a motor I'd like to use. I have this same engine in my '32 ford hiboy. Check it out.
www.theengineshop.com/113_0307_454_pg1.shtml
I still can't believe it has a 2 year 24k mile waranty
--Kevin
>> Edited by artanisman on Saturday 2nd October 23:31
www.theengineshop.com/113_0307_454_pg1.shtml
I still can't believe it has a 2 year 24k mile waranty
--Kevin
>> Edited by artanisman on Saturday 2nd October 23:31
marky p said:
You guys spend £40,000 on a car and stick a vintage carb engine from the sixties in it! Injection must be the way forward shorly?
Carb yes vintage no. If I bought a rusty bone stock 1955 chevy sedan and pulled it's engine and put it in an ultima, yeah that'd it be putting in a vintage engine.
Sophistication isn't always the best route to follow for everyone. Having the simplicity of a carbed engine means maintenace can be easily done by just about anyone who can read a manual.
Horsepower is horsepower and torque is torque. An ultima with this beast under the bonnet will beat the pants off of a stock ls6 engined ultima anyday if the right driver is behind the wheel of each car.
Power and ease of maintance are the best combonation for me. But a new small block built by the good engine builder is by no means vintage.
--Kevin Coleman
[quote=artanisman]I think a carbed engine is the way to go for me. Cats are not required in my area. however If I use a carbed engine I can do my own maintanence. I would have to take an ls1 to a chevy dealer or a vette specilest. I got my eye on a motor I'd like to use. I have this same engine in my '32 ford hiboy. Check it out.
<a href="http://www.theengineshop.com/113_0307_454_pg1.shtml"><a href="http://www.theengineshop.com/113_0307_454_pg1.shtml">www.theengineshop.com/113_0307_454_pg1.shtml</a></a>
I still can't believe it has a 2 year 24k mile waranty
--Kevin
Artanisman
My two cents worth re engines, you can get power via a carb and it's easy to maintain.
A stock 350 ci Ultima is faster than 99.99% of all road cars. A tuned 377 is faster than them all, why?.. cause it rev's really fast, this is what the car need matched to very light weight 2000 lbs and a porsche G50 gearbox, who's ratios are short and who's torque limit would be smashed by a 454 ...
A side note an engine from American speed comes Ultima ready with the correct ancillories does this .. I don't know
Hey what do I know ...
G MAN
>> Edited by G Man on Sunday 3rd October 09:35
<a href="http://www.theengineshop.com/113_0307_454_pg1.shtml"><a href="http://www.theengineshop.com/113_0307_454_pg1.shtml">www.theengineshop.com/113_0307_454_pg1.shtml</a></a>
I still can't believe it has a 2 year 24k mile waranty
--Kevin
Artanisman
My two cents worth re engines, you can get power via a carb and it's easy to maintain.
A stock 350 ci Ultima is faster than 99.99% of all road cars. A tuned 377 is faster than them all, why?.. cause it rev's really fast, this is what the car need matched to very light weight 2000 lbs and a porsche G50 gearbox, who's ratios are short and who's torque limit would be smashed by a 454 ...
A side note an engine from American speed comes Ultima ready with the correct ancillories does this .. I don't know
Hey what do I know ...
G MAN
>> Edited by G Man on Sunday 3rd October 09:35
G Man said:
A stock 350 ci Ultima is faster than 99.99% of all road cars.
Wise words Gareth, with the statement above probably the most telling of all!
It's easy to get caught up in the quest for mega-power (I should know!) but the truth is, you can only use a fraction of it (well, in the UK at least) driving on the roads, although it does make for good bar room bragging
Also, with near race-spec engines, you can expect race-like maintenance. Freshening up every couple of thousand miles is going to get pretty expensive over time - but to hell with it, these cars are mostly toys after all 
It would be great to do a test with GMan's car vs. a bog stock 350ci SBC. I reckon, whilst GMan's car would undoubtedly be faster, you'd be surprised by how close the stocker would be and as he said, it would still be quicker than 99.9% of cars on the road.
Still, at least if you know that you want Ultima(te) power, there's a ready to go, factory approved source who can meet your needs.
In my mine, cost is the only disadvantage of FI... if I had the budget I'd choose that over the carb every time.
However for the cost the holley has to be the bargain of the year and you wont see much performance gain (if any) using FI on the old chevy, you'll only gain refinement IMO.
However for the cost the holley has to be the bargain of the year and you wont see much performance gain (if any) using FI on the old chevy, you'll only gain refinement IMO.
Surely one of the best reasons for going EFI is driveability. I've been in plenty of cars powered by hot Chevvies and all of them suffered from low-speed chugging which would annoy the hell out of me if I was stuck in traffic. I want my Ultima (if I ever manage to get my hands on one!) to be an everyday driver and I don't think that's as daft as it seems.
If I was going the Chevvy route I'd go Gen III as there's lots available locally from around $6,000NZD. Whilst there isn't the level of tuning equipment as the trad SBC there's still plenty around. One local company can produce perfectly streetable Gen IIIs (normally aspirated using TBs) with 700bhp. Or go the supercharger route and get 450+bhp out of the standard engine with pretty much the standard injection set-up.
I want to use my Rover coupled with a Vortech mainly because I have a LOT of money invested in that engine and it would give me the light weight of the Gen III with SBC power.
If I was going the Chevvy route I'd go Gen III as there's lots available locally from around $6,000NZD. Whilst there isn't the level of tuning equipment as the trad SBC there's still plenty around. One local company can produce perfectly streetable Gen IIIs (normally aspirated using TBs) with 700bhp. Or go the supercharger route and get 450+bhp out of the standard engine with pretty much the standard injection set-up.
I want to use my Rover coupled with a Vortech mainly because I have a LOT of money invested in that engine and it would give me the light weight of the Gen III with SBC power.
this argument will rage for ever and a day. i think its very much down to the person. there are pros and cons to every arguement and i think you are best to listen to all, but dont let them make the choice for you!
me personaly. i would go for the LS X unit. i love small blocks and all (and that 454 is a blinder, just picture some lovely throttle boddies on it) but it is a very dated design. the Meteor engine found in WWII planes and tanks is more advanced. it has 4 valves per cylinder and is all alloy!
just my thoughts on a very "difficult" subject.
thanks Chris.
me personaly. i would go for the LS X unit. i love small blocks and all (and that 454 is a blinder, just picture some lovely throttle boddies on it) but it is a very dated design. the Meteor engine found in WWII planes and tanks is more advanced. it has 4 valves per cylinder and is all alloy!
just my thoughts on a very "difficult" subject.
thanks Chris.
chuntington101 said:
this argument will rage for ever and a day. i think its very much down to the person. there are pros and cons to every arguement and i think you are best to listen to all, but dont let them make the choice for you!
me personaly. i would go for the LS X unit. i love small blocks and all (and that 454 is a blinder, just picture some lovely throttle boddies on it) but it is a very dated design. the Meteor engine found in WWII planes and tanks is more advanced. it has 4 valves per cylinder and is all alloy!
just my thoughts on a very "difficult" subject.
thanks Chris.
Before anyone suggests it, No you can't get a Meteor engine in an Ultima.
Steve
Well, before it got spiffied up and put in that shiny car it looked like this: 1792 cubic inch, 810 HP with overhead cams and Hemi heads coupled to an Allison HD4060 6-speed and completely road legal (not to mention 1560 ft-lb of torque). I guess I am content with the AS SBC in my GTR considering the MPG.
>> Edited by ultimarobert on Tuesday 5th October 01:02
>> Edited by ultimarobert on Tuesday 5th October 01:02
jamieheasman said:
Surely one of the best reasons for going EFI is driveability. I've been in plenty of cars powered by hot Chevvies and all of them suffered from low-speed chugging which would annoy the hell out of me if I was stuck in traffic.
Well, you've been in mine mate and that was carb'd, 630hp and didn't 'chug'!
Having come from carbs to Fuel injection, what i can tell you is that there's no massive increase in power - dont junk a carb for that reason alone.
What it does give you though, is lots of flexibility. Cold startup is faultless, hot starting is faultless. Throttle and engine response is much crisper and cleaner. You also know exactly what your fuel ratio is and its easy to tweek and change.
FI is particulary suited to forced induction, due to the ability to accuratley control the mixture at all operating ranges.
Eliot.
What it does give you though, is lots of flexibility. Cold startup is faultless, hot starting is faultless. Throttle and engine response is much crisper and cleaner. You also know exactly what your fuel ratio is and its easy to tweek and change.
FI is particulary suited to forced induction, due to the ability to accuratley control the mixture at all operating ranges.
Eliot.
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