weight distrubution with rb20/rb25

[JonPowell]

Here is the picture of my car, I dont see ANY difference in ride height and my car is WAY stock.

Tell me what you think, I measured the wheel wells and the ft is 26 3/4, the rear is 26 1/2 at the highest point...the front is still 1/4 inch higher.

[wga240]

I went out and measured from the ground to the highest point of my wheel well. The car wasn't on quite level ground, but it was fairly close.

Front driver side : 27"Front pass side : 26.5"Rear driver side : 26"Rear pass side : 26.75"

So it's fairly close all the way around. I'm assuming the ground not being quite level accounted for the variation from side to side.

[S13Sil-line]

Look. Drop an RB in your car. Then learn how to man handle your car and then take him to the track. Then laugh.

[thephatone]

haha good idea! i just need to encourage him to get a rb25 also, hehe so we can both roam the streets

[thephatone]

who has a good condition rb25det and can install it in a s13 body 240sx? that is near or around southern california, i can go to another state if anything but nothing too outrageous

[gabossie]

If they were just laying around peoples garages, there probably wouldn't be so many contraversies over not being able to get ahold of them. Good luck finding one already in the US, especially a clip.

[S13Sil-line]

Look. I can get you in touch with someone who can get you an RB25DET 5 speed clip. e-mail me. [email protected] Its not that difficult to install it.

[MidnightSlide]

Alright... all of you SAY that i am an idiot.. but ask anyone who truly knows about drifting, handling, or weight when it comes to canyon racing. They will all say that the 240sx (180sx in Japan) was desinged with a near perfect 50/50 weight ratio,using the sr20det NOT the Ka24... that is what i was basing the weight #'s on. The rb25 is an iron blocked motor with 6 cylinders that weighs alot more than the sr20 motor..and that is eactly what i was trying to relay to my friend.... If I wanted to go in a straight line more than handle in the canyons then i'd be all over the rb25 in a split second.... but since i am setting my car up strictly for handling/drifting that is why i chose the sr20det. Hopefully someone else that knows anything about cars speaks up so that my friend will believe me, and drop all of this. I am in no way saying anything bad about the rb's because they are amazing motors...so please don't flame me and say that i don't know what i am talking about and that the rb motors rule in all aspects, because that will just make you look like an idiot.

By the way, if anyone here knows about Jspec.com ( if not, where the heck have you been?!? ), Sam (the owner) HIMSELF told me about what i told my friend about weight ratios, and he knows his stuff. So if you are saying that i am wrong, then you are also saying that someone that deals with pro drifters all day long is wrong also?? I think not...

[JonPowell]

The Silvia(which gets the SR20DET was also designed for a person to drive on the RT side of the vehicle. putting the SR20 in a car with the driver on the left is going to throw off the balance also. did you ever think of RT/LT balance? The 240SX with the KA is designed for the driver to be on the LT so if your major concern is balance, use the KA and dont do ANYTHING to it that might upset the precious balance. I think this arguement is played out. The RB 240 drives and corners the same as the KA 240. That is all I have to say.

[MidnightSlide]

i see what you are saying, but the Ka lacks power....the extra 50+hp does help...

[JonPowell]

So now its about power, not balance, right?

Which is it going to be?

Just showing you gotta make sacrifices sometimes. If you want balance, dont touch it. If you want power dont complaing about balance.

[PROJECTRB240SX]

OK TO THE WEIGHT RATIO ISSUE, YOU CAN MAKE THAT UP THROUGH SUSPENSION SETUP. YEAH YOUR CAR MAY HAVE A 50/50 WEIGHT RATIO AND HOLD .90GS ON THE SKID PAD BUT WITH MY 2580LB RB20 POWERED CAR AND PROFESSIONAL SUSPENSION SETUP/ALIGNMENT THE CAR CAN HOLD WELL OVER 1G ON THE SKID PAD AND STILL MAINTAIN ITS NOSE BIASED WEIGHT RATIO.

[MidnightSlide]

Ok people....the weight difference is pretty big.. and in reply to power vs balance... yes but the point that i was making is that the sr motor is what makes the car so balanced...and it has more hp to boot. So then i am getting the best of both worlds. Plus i saved over $1000 in getting the motor swapped in.. now take that 1k and add it to the crazy money i would have to spend on suspension just to "make up the difference" and im going to have ALOT less money, and only 50 more hp... in my case i just don't find it worth it...but hey... to each his own right?

[PROJECTRB240SX]

HOW MUCH DID YOU MOTOR SWAP COST? CAUSE I AM DAMN SURE I SPENT WAY LESS THAN YOU.

[JonPowell]

I spent $5600 including buying the car for an 89 Coupe and a 96 RB25DET

[PROJECTRB240SX]

I'M AT $2800 WITH THE PURCHASE OF MY CAR. ITS COMPLETELY RUNNING W/ ENTIRE CLUSTER, FMIC, BRAIDED TEFLON POWERSTEERING, CUSTOM PIPING, 2950CFM FAN, AND A FEW OTHER THINGS.

[JonPowell]

Explain how you did that.....how much was the car, $50?

Let us in on your secret!

[PROJECTRB240SX]

THE CAR $700, THE CLIP WAS $1500, FMIC AND PIPING $300, PS LINES $90 (RETURNED SOME STUFF), FAN $78 (GOT REFUNDED SOM MONEY MYSTERIOUSLY), EVERYTHING ELSE WAS FREE CAUSE IT WAS EITHER A TRADE OR IT CAME WITH THE CLIP.

[PROJECTRB240SX]

OHH I FORGOT TUNE UP PARTS WERE LIKE $40.

[MidnightSlide]

well.. what about your "professional" suspension setup that you were talking about? How much do you think that would cost you?Im at $3,000 total including car, suspension, turbo,FMIC, piping electric fans, rims, tires. etc etc etc..the list goes on... And projectrb i am talking rb25 here, not rb20... i am sure there is a decent weight, price, and power difference between the motors...

Oh and just to clear some things up ... i don't have the motor yet..i am planning on getting one soon... I don't know why thephatone said that i have it, but it is going to go in soon...maybe that is why he is so set on making his point...

Here is what i am running now:

89 240sx w/ rebuilt ka24e motorDual 12" electric fansTurbo-Performance turbo kit - 7psiSpearco 24x12x4 FMIC / blitz blow off valveApex t-max adjustable short stroke shocksKG/MM (s-21?) race springsFront and rear strut tower bracesCusco camber platesBS Rims (16x7 front 16x8 rear)JDM Potenza RE540S tires

I wanted the best weight ratio that i could get, and have a little more power+higher rev limiter, and that is why i wanted to go SR.. and i don't have tons of money to dish out for better suspension, and another thousand dollars for the rb motor... Anyways.... that is about all i have to say...

[PROJECTRB240SX]

HERE WHAT EXACTLY ARE YOU TRYING TO DO WITH YOU CAR?

YOU NEED TO FIGURE THIS OUT BEFORE YOU CAN MAKE A GOOD SOLID DECISION.

TAKE ME FOR EXAMPLE:I WANT A CAR DESIGN FOR ROAD RACING. THE CAR NEEDS TO HAVE AN ADIMATE AMOUNT OF POWER BUT GREAT HANDLING AND BRAKING POWER. MY CAR IS GOING TO BE DESIGNED TO HANDLE HARD TURNS BUT HAVE THE POWER TO ROCKET DOWN THE STRAIGHTS.

[MidnightSlide]

Hmmm... I plan to be FAST in the canyons, i know that the majority of that lies in the driver, but the car's setup helps alot... I'd also love to be able to go fast in a straight, but i figure that i could always upgrade fuel and go bigger with the turbo on the sR motor...

[PROJECTRB240SX]

AND AND SO YOU KNOW YOU SHOULD REALLY PLAN FOR HIDDEN EXPENSES. THERE ARE TONS OF HIDDEN EXPENSES WHEN IT COMES TO USED TURBO CHARGED IMPORT ENGINES. ANOTHER THING IS THESE MOTORS LACK ON THE RELIABILITY SIDE AND ALSO THE COST OF REPAIRS. YOU'LL FIND THAT ITS GOING TO COST YOU WELL OVER DOUBLE TO REPAIR ANYTHING ON THE ENGINE IF IT GOES BAD.

SECONDLY ARE YOU DOING THE INSTALL? IF YOU AREN'T YOU NEED TO PLAN FOR THAT ALSO BECAUSE THAT WILL BE EXPENSIVE WITH THE SAME HIDDEN COSTS.

I AM NOT TRYING TO SWAY YOU ONE WAY OR THE OTHER BECAUSE ALL THESE MOTORS ARE GREAT, BUT THEY ARE DESIGNED FOR PURPOSE. THE ENGINES ARE DESIGNED INTO A CAR NOT THE CAR AROUND AN ENGINE. YOU HONESTLY NEED TO FIGURE OUT WHAT EXACTLY YOU WANT OUT OF THIS PROJECT.

[PROJECTRB240SX]

SEE YOU WANT A ROAD RACING CAR SIMILAR TO MINE BUT YOU WANT TO DEAL WITH ELEVATION CHANGES. CHANGING A TURBO TO A LARGER ONE MEANS LOSING RESPONSE FOR POWER. IF YOU BUILD A CAR TO HANDLE HIGH POWERED CORNERS AND CHANGE THE TURBO YOU JUST LOST ALL YOUR POWER FOR THOSE TURNS BECAUSE YOU MOVED YOU POWER BAND UP AND HAVEN'T CHANGED YOUR CAR FOR THE INCREASED LOAD.

[PROJECTRB240SX]

EVERYTHING IS A TRADE OFF WHEN IT COMES TO CARS (GIVE AND TAKE) AS IS ALMOST EVERYTHING IN LIFE. YOU NEED TO HAVE A PURPOSE FOR EVERYTHING AND MAKE CHANGES TO SUIT.

[MidnightSlide]

i was thinking of an upgrade along the lines of a t25/t3 hybrid turbo.... stull utilizing the small exhaust wheel... I plan on having the sr swapped in for around 4k.... i don't have the garage or the resources to swap it in myself or i would. And yes i do know what i want to do with the car, and that is why i chose the sr motor.

[PROJECTRB240SX]

THEN DON'T BAG ON ANYONE WITH TH RB25 AND YOUR FRIEND REALLY SHOULDN'T TRY TO SWAY YOU FROM YOUR DECISION JUST INFORM YOU OF OTHER OPTIONS.

[thephatone]

okay going off the subject how the hell do you guys find 240sx for like free? and jon powell how much did you spend on the rb25det clip?

[JonPowell]

well.. what about your "professional" suspension setup that you were talking about? How much do you think that would cost you?Im at $3,000 total including car, suspension, turbo,FMIC, piping electric fans, rims, tires. etc etc etc..the list goes on... And projectrb i am talking rb25 here, not rb20... i am sure there is a decent weight, price, and power difference between the motors...

I thought you were choosing RB25, not RB20....you are confusing the hell out of me.....

[JonPowell]

I got my car for $1300 and my clip for $2500 plus 800 for shipping. Came with the exhaust too. I didnt count into it the 400 I got for selling the body panels and light. If you count that I spent about $5200 on everything.