I'm pro RB engine for big power. Will it handle as well? Obviously not, as mentioned above.

I like SR20DET engines but I don't see the point of throwing away a pefectly good engine that comes with the car with more liters. 54% ratio is not going to be day and night.

Sometimes this forum seems like one big advertisement for a few select tuner shops. When some person with only half a clue about nissan engines and cars comes in here. The three amigos line up and blast him/her with SR20 is the best and no one else ever rings in to give a good alternative. Then you type your little post, hit the submit button only to get a reply that is backed up by plenty of thorough reasons/facts.

"Because SR20DET's are the best choice and if you want to use something else then you're dumb. Have a nice day."

That really enlightened me. STFU

 

Im not tring to come on as a know it all, but I can tell just by looking at this post that people are tring to defend an engine that wasn't truely ment to be all out modded. Sure people make good power on it, people make good power on V-8's too if you wish to distrub the weight balance that much I advised a nice LT-1 or 350. With a blower you could make well into the 700hp range!



p/s
Cars that are PITA and have blown headgaskets all the time are not fun

 

This is Black Venom, If you notice yes the weight of the engine is much more then I said. But a standard battery is not just 10 pounds, and a carbon fiber hood doesnt just save 5 pounds. I was just giving an example of weight difference. Lets say the engine is 400 pounds, then lets say the battery is 40 pounds. The shipping weight is both engine and tranny, with a beefy tranny accounting for half of the additional weight.

So seeing as how your only trying to counter act the additional weight from the engine. Thats 200 pounds, move a 40 pound battery from the front out of the car. Now its only 160 pounds needed, well if you in turn, put it in the rear. Then you really are only off balance by 120 pounds. Lets say a carbon fiber hood saves 20 pounds, now your only 100 over. Lets then add a sub box and amplifiers, do you think it could balanance out?

The tranny weight moved down and back. Should act like having a passenger. So if you went and raced. It's gonna be a sloppy drag car, as if you had a full car of passengers. But with suspensions these days you can controll how it reacts to the extra weight.

And yes I am aware you have driven an RB powered 240sx. But I was unaware, that you had done a full suspension. To handle the weight, and moved weight around the vehicle to counteract the sloppyness.

From what I understood, You did it at your place of work. Cause some kid had ordered one, and they didnt have the extras. Not even power steering nor a/c.



Pro racers get penalized from their hp. By having to add weight to their vehicles. So your saying the extra 100 pounds, they have to add sometimes. Completely makes them crap, compared to the other vehicles. I personally don't think so, cause they still win. By precisionly placing the weight over the car, and setting up the suspension.

My theory is well backed, by history in racing. So I do not understand, where they are wrong. Cause as long as I incorporate the same techniques, they have used. I should have the same abilities.

 

THey purposly built the RB26DETT for racing. The other 2 engines are found in the lesser GT-S of the skylines. These engines aren't bad persay. But they certinly cannot stand to a RB26.
I'm not tring to hold anyone back, I personally love the sound of a inline 6, but if somethign breaks and it takes me 5 months for me to hear the 6 again I would be piss.
I personally feel there are to many negitive factors agaisnt the RB25's and RB20's for me to consider getting one.

 

And the debate rolls on...so my question is this now...if weight isnt an issue, meaning you find a way to counterweight the car to make it as even as possible, the only other con to the motor is the part availabilty? What about the difficulty of the swap itself...I've read(not actually experienced)that with a mount kit and custom driveshaft, its a bolt in swap. Of course you will need the wiring redone(which I've also read is said to be as easy if not easier than a s13 ito s14). Though I would probaly have someone else tackle it such as Taylor because he's already mastered it. Now when I say being a bolt in swap, I'm comparing it to the s13 redtop to S14 chassis swap which everyone else knows needs a few "extras" to run properly. DP, hoses, custom a/c fabrication lines, electric fans, possibly raditor(though I've heard that the KA one is fine, but if running under constant heavy load cant take heat very well), aftermarket fuel pump..which is more or less needed for a SR swap. So weight issues aside, handling(which I would think that if you need to upgrade your suspension anyways, that would take care of some of your weight issues, but alot of your handeling issues) are the only cons?

 

Thats a good point Chin, but if the parts issue wasnt a problem, would you do it?

 

with SR's making 600whp on stock blocks... is there any question???

600whp on a RB25 is gonna be a bitch also, and in the end you'll lose the straight line due to more total weight anyway..

 

If I didnt have any trouble getting parts I would live in japan...if I lived in japan I would get an R32 GT-R

 

Ok then lets rephrase. Lets put an Rb26dett in the 240. Since thats more of a race engine, then with the single turbo upgrade. The swap should be as easy, a lil harder probably <as the Rb25det>.
So now that we have a race engine, with the rb25 tranny, with weight balanced out. Would that be better? And for everyone who bashes the swap for parts reasons. I would expect you to be on every board, telling everyone in the United States not to buy a Skyline. Cause, when their car breaks, they can't go anywhere for 5 monthes. I don't know about you, but if it breaks. And I'm spending that much money, I'd pick up a metro or cheap honda. To get me back and forth from school, or work. For times it breaks.

Now in my case, I can always ride my motorcycle around. Would rather not. But I'm replacing everything, but the internals and some of that might even change too. So if it breaks I probably broke it and I'll suffer <But only in the rain, Its fun the rest of the time>

I love the debate. I think, It's good and healthy. The more ways we look at it, the less we will have to debate with others in the future.

 

torque vs horsepower.

which is gonna be faster?

the one with the better gearing to accomodate it.

and this black venom dude, hey, i say, build it! until then i can't really take your word of any more importance than the rest of the nico 'thugs.

and i'm such an avid supporter of the sr because it doesn't need the extra displacement to make power. it can be reliable for a daily driver, light weight to throw around in the twisties, and oh my god power up top.
spun bearings/??? maybe you forgot to check your oil pickup or run a good oil filter.
the whole sr's spin bearings thing, hell, even i thought that back in the day, has to do with starving the motor of oil, which will happen if the pickup or oil pan is dented.
correctly done sr's will fail more often because of valvetrain issues. dont go from 3rd to 2nd at WOT redline and that won't happen. (glenn / scott / brett among others)