Discussion
Big horsepower fanatics: I just came across this clip from Nelson Racing Engines:
http://www.nelsonracingengines.com/video_must_see....
Have a look at the video titled "My Crazy Denmark Friends".
This video sports a 427 small block twin-turboed engine. It cranks out 1100HP with pump gas, and 1750HP with racing fuel. In the clip, it was set at 6psi, 91 octane fuel, which equates to about 750HP.
When he got ready to start the car and mentioned it was "uncorked" (exhaust isn't in place yet), I though it was going to sound like a teeth rattling stock-car. But it idled like a kitten! And, he claims it's a streetable engine, something you would have no problems driving across the country in.
This sounds like a dream engine for an Ultima: sickening horsepower, but docile and reliable enough to drive around on the streets. So, how would something like this stack up in the back of an Ultima, say, on the Nürburgring? Would all that HP be useful? The mind wonders
http://www.nelsonracingengines.com/video_must_see....
Have a look at the video titled "My Crazy Denmark Friends".
This video sports a 427 small block twin-turboed engine. It cranks out 1100HP with pump gas, and 1750HP with racing fuel. In the clip, it was set at 6psi, 91 octane fuel, which equates to about 750HP.
When he got ready to start the car and mentioned it was "uncorked" (exhaust isn't in place yet), I though it was going to sound like a teeth rattling stock-car. But it idled like a kitten! And, he claims it's a streetable engine, something you would have no problems driving across the country in.
This sounds like a dream engine for an Ultima: sickening horsepower, but docile and reliable enough to drive around on the streets. So, how would something like this stack up in the back of an Ultima, say, on the Nürburgring? Would all that HP be useful? The mind wonders
Edited by mohrt on Wednesday 10th September 00:02
you can get big horse power with a twin turbo V8, and yes it will tick over lovely as compression ratio is low for the turbos and no boost at tick over but when that turbo comes in, boy had you better be ready because she will bite you in the arse if you are not on form....wheelspin for miles in an ultima due to lack of weight.
car with 1500-2000 hp are not easy to handle with your foot planted on the floor... watch this 2000 hp pontiac on youtube. this car is twice the weight
http://www.youtube.com/watch?v=gN6E-_0wXos
sometimes too much horsepower is slower
dom
car with 1500-2000 hp are not easy to handle with your foot planted on the floor... watch this 2000 hp pontiac on youtube. this car is twice the weight
http://www.youtube.com/watch?v=gN6E-_0wXos
sometimes too much horsepower is slower
dom
mohrt said:
This sounds like a dream engine for an Ultima: sickening horsepower, but docile and reliable enough to drive around on the streets. So, how would something like this stack up in the back of an Ultima, say, on the Nürburgring? Would all that HP be useful? The mind wonders
Sounds more like a nightmare to me. An engine producing this much power would be hideous in an Ultima. IF you could find a transaxle that could live with that sort of power and IF you could transmit that power to the ground effectively and IF you could get it quite enough and after all of that IF you were to take it to the Nordschleife, it would kill you; That is a lot of Ifs thankfully 
I can't believe that no one has considered how an Ultima would fare with a rocket instead of a huge HP motor installed, or maybe some kind of nuclear power!
It is interesting that those with an Ultima never seem to start threads like this, what does that tell you?
crafty said:
Mohrt,
Speak to Chris (chuntington) - he already has the market cornered on NRE worship.
He has a 3,500 quadruple turbo, double supercharged, nitrous fed, 1200cube, solid titanium big block NRE engine in mind for his Ultima.
You should ask him how much it cost.
Cheers mate! Speak to Chris (chuntington) - he already has the market cornered on NRE worship.
He has a 3,500 quadruple turbo, double supercharged, nitrous fed, 1200cube, solid titanium big block NRE engine in mind for his Ultima.
You should ask him how much it cost.
morht you wont find alot of love for the 427TT engines over here. Jeff's LS7 TT engines go down a little better but you still get people that dont like them.
as other have said though, all that power is often not needed esp. in a light chassis like the ultima has. it might be worth looking at one of nelsons N/A SBC mototrs, or even the LS stuff he is building these days. Can am dave has shown that a Procharger can be installed and work VERY well (SBC). this is something else that Nelson could probably look at for you if you are set on FI.
Chris.
Edited by chuntington101 on Wednesday 10th September 08:13
I have 1007 HP on 95(92us) pump gas. (yes it's just for compensating size 
More that that is just stupid. Even 1000 is lunatic. Watch the lexus powered engine running around 850 HP on the 0-1000m on Youtube. Would you do that on the road?
The sweet thing with turbos it that you can deceide how much power you will have from day to day. I even have different boost depending on witch gear I'm in.
My engine ticks fine (but loud) on idle and drives OK around town. I have a small "unsweet spot" between 2700 and 3100 due to the very agressive cams but apart from that it's very smothe.
Tracktion isn't a problem as it is with ie single turbo Supras or whatever American car you can find. the chassi handles the power fantasticly (even if I have bent a few things...) I have almost no wheel spin at all even with 900 bhp as long as you have no side loads in the car.
So whats the point with this post? I just want to say that more power than I have will just be too much if your goal isn't top speed records. The chassi will need major mods to cope with more power. I love to have this much power but mostly I use around 700 and even then the car is faster than ANYTHING on the track/road. Don't let the HP numbers fool you. Remember what this car weight is when you compare numbers...
So would I build the same engine all over again if I started a new build? Since I'm a nerd that just loves turbos and gadgets YES I would but if i would recommend a friend what to buy I would say "buy a hopped up LS7" and stay away from carbs, they should not be seen in a car made after 1979.
More that that is just stupid. Even 1000 is lunatic. Watch the lexus powered engine running around 850 HP on the 0-1000m on Youtube. Would you do that on the road?
The sweet thing with turbos it that you can deceide how much power you will have from day to day. I even have different boost depending on witch gear I'm in.
My engine ticks fine (but loud) on idle and drives OK around town. I have a small "unsweet spot" between 2700 and 3100 due to the very agressive cams but apart from that it's very smothe.
Tracktion isn't a problem as it is with ie single turbo Supras or whatever American car you can find. the chassi handles the power fantasticly (even if I have bent a few things...) I have almost no wheel spin at all even with 900 bhp as long as you have no side loads in the car.
So whats the point with this post? I just want to say that more power than I have will just be too much if your goal isn't top speed records. The chassi will need major mods to cope with more power. I love to have this much power but mostly I use around 700 and even then the car is faster than ANYTHING on the track/road. Don't let the HP numbers fool you. Remember what this car weight is when you compare numbers...
So would I build the same engine all over again if I started a new build? Since I'm a nerd that just loves turbos and gadgets YES I would but if i would recommend a friend what to buy I would say "buy a hopped up LS7" and stay away from carbs, they should not be seen in a car made after 1979.
crafty said:
Mohrt,
Speak to Chris (chuntington) - he already has the market cornered on NRE worship.
He has a 3,500 quadruple turbo, double supercharged, nitrous fed, 1200cube, solid titanium big block NRE engine in mind for his Ultima.
You should ask him how much it cost.
lmao.............Speak to Chris (chuntington) - he already has the market cornered on NRE worship.
He has a 3,500 quadruple turbo, double supercharged, nitrous fed, 1200cube, solid titanium big block NRE engine in mind for his Ultima.
You should ask him how much it cost.
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