What engines (non-rover) are ok for a D2?
- Thread starter No Pvmt
- Start date
haven't seen the 4.8, but 5.3 with the truck intake is hugely tall - seemed taller by 4-5" than a GEMS motor, pan to top of intake.
Supposedly, there's a Camaro intake for this engine.
Supposedly, there's a Camaro intake for this engine.
robertf said:
Yeah, but the 4.8 makes just the right amount of power. A little more than a Rover V8 but not enough to put undo strain on the rest of the drivetrain. Rover 4.6 is 222 hp and 250 lb ft. A box stock 4.8 is 295 hp and 305 lb ft torque. The 5.3 makes 20 hp and 30 lb ft more and having personally driven both, you can hardly tell the difference.
More power from the 4.8 but nothing more than a hopped up BOPR 4.6 delivers. A 5.3 might be a little too much for a stockish driveline.
robertf said:
Yeah. I noticed that. Same block and everything, meaning same external dimensions. It seems like the fuel mileage is almost the same as well, because the 5.3 has a little more advanced management system than the 4.8. On an empty 4700 pound truck people on other forums are reporting up to 25 mpg highway on the 4.8. This is getting into the range of a diesel, but with a hell of a lot more grunt. The 4.8 and 5.3 are both putting out 300 ft lbs or more of torque. Supposed to be easy to tune as well. GM makes one nice V8 these days (always has really). I had an LS1 Trans Am with a six-speed which got up to 28 mpg on the highway and put out over 300 hp to boot. The new LS7 gives that kind of mileage in a Corvette and rates at 500 hp. Pretty amazing stuff . . .
:rofl:
Had to throw this in there because its hilarious. I saw this on Big Agnes' site and laughed.
Back to topic, the 5.3 (as of 2005) now has that active fuel management where there is deactivation of the cylinders under light/ no loads. I think there is even some form of valve management? The 4.8 has the more tunable setup as it doesnt have the other complicated things. Yes, GM still uses pushrods but I can understand why. Other companies have gone to DOHC designs but GM has been able to make "old tech" just as efficient and clean burning, in a smaller, lighter package (Ford DOHC V8's are ENORMOUS). The stock computers on the GM motors are limited in tunability but can be opened up to do the very basic of things. The beauty of a GM powerplant is that every American aftermarket company worth a damn has a computer that can be run off of your laptop that will plug into the GM sensors and wiring harness.
Had to throw this in there because its hilarious. I saw this on Big Agnes' site and laughed.
Back to topic, the 5.3 (as of 2005) now has that active fuel management where there is deactivation of the cylinders under light/ no loads. I think there is even some form of valve management? The 4.8 has the more tunable setup as it doesnt have the other complicated things. Yes, GM still uses pushrods but I can understand why. Other companies have gone to DOHC designs but GM has been able to make "old tech" just as efficient and clean burning, in a smaller, lighter package (Ford DOHC V8's are ENORMOUS). The stock computers on the GM motors are limited in tunability but can be opened up to do the very basic of things. The beauty of a GM powerplant is that every American aftermarket company worth a damn has a computer that can be run off of your laptop that will plug into the GM sensors and wiring harness.
Let's just say I don't want to air anything on an open forum. 
Just don't think for a second that this conversion stuff goes unnoticed.
Just don't think for a second that this conversion stuff goes unnoticed.
Roving Beetle said:Let's just say I don't want to air anything on an open forum.
Just don't think for a second that this conversion stuff goes unnoticed.
Well, it's hard to believe it would, since all one has to do is search on any LR forum, or even google it and it would become quite clear that there are a lot of LR diesel conversions in the U.S.
I may be wildly off the mark, but I've seen several super-clean diesel conversions of emission-controlled vehicles (at least, in CA it applies to any 76 and later vehicle that had any emission equipment in it - OBD-1 or 2 has absolutely no bearing) here. The federal rule of "same year or newer, from the same GWVR group" still applies; but, once that is okay, you're exempt from emissions testing forever.aliastel said:
Yes, in our smog-nazi state.
p m said:
Same year or newer and same GVWR group is one thing, but gas to diesel and vice versa is definitely forbidden under federal law. Then there is the whole issue of whether a motor is even EPA certified for use in the U.S. at all. For example, the Isuzu 4BD1T is EPA certified for medium trucks in the U.S., but the 300 Tdi is not certified for use in the U.S. at all, so possession of such an engine here is technically considered a federal crime. States have their own separate laws on this, so one could be legal in a state and still illegal under the federal regulations. And when it comes to enforcement, the federal government trumps the states on emissions.
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The issue is with the motor itself. Its not a legal motor in the States since LR never bothered to get it approved as they had no intention of bringing it in. Thats the real issue. I know that the EPA takes notice. On another forum, they were talking about a Skyline and an owner who came on the Fed scope and was issued a surrender letter. I know it does happen which is why I am starting to double think the diesel swap
http://forums.vwvortex.com/showthread.php?4525420
Then add this in for good measure:
http://jalopnik.com/5371967/feds-seize-illegal-nissan-skyline-gt%20rs-in-cali
It sucks because I would love to have a diesel but I dont want to take the chance so a more efficient V8 might be the ticket.
http://forums.vwvortex.com/showthread.php?4525420
Then add this in for good measure:
http://jalopnik.com/5371967/feds-seize-illegal-nissan-skyline-gt%20rs-in-cali
It sucks because I would love to have a diesel but I dont want to take the chance so a more efficient V8 might be the ticket.
what is sad about most of this thread is that the one person babbling on on about legality actual lives somewhere where you can do a alternate fuel swap, and get it tagged legally thru Illinios DMV.
But has chosen to remove his cat's to gain that extra 3hp...
viggen...you've got mail
But has chosen to remove his cat's to gain that extra 3hp...
viggen...you've got mail
Mongo said:
Once again you have proven that you can't read . . . Go put some more armor all on your 37" IROC's . . .
Mongo said:
Legal in Illinois ain't the problem, it's legal at the federal level that's the issue. (read the posts . . .)
I didn't remove my cats. I bought the vehicle without them and plan to replace them. (read the posts on Expo, where you got that from . . .)