20% more power is doubtful. 280ZXT is about 180hp stock so a 20% would be an increase of 36hp. Now if you combine the 240sx throttle body and match port the intake, add a 3" downpipe and exhaust and lose the cat, then you will be looking at a 20% increase.
Somebody at z31.com put one on and dynoed a whopping .4hp I thin it was.
I put the TB on my z31 long ago when it wasn't well known how worthless it is. If I had it to do over again, I'd not bother. It is the sorriest mod I've ever done, taking into consideration time, money and effort vs gain.
I've heard that if I put a 240sx throttle body onto my
280zx turbo and make a few adjustments, I will get 20% more power. Is this true?
I HAVE A 86 Z31 AND THE FIRST MOD I DID WAS THE THROTTLE BODY I PORTED AND POLISHED IT MY SELF IT REALLY DOESNT GIVE U ALOT OF HORSEPOWER IT HELPS UR RESPONSE TIME U GO THROUGH THE GEARS ALOT FASTER S I RECOMMEND DOING IT
I think its a total waste to be honest with you... 200 bucks for 4 hp IMO is a waste. Id rather spend that money on injectors or a new fuel pump to get some real hp. I guess its all personal preferance.
I think its a total waste to be honest with you... 200 bucks for 4 hp IMO is a waste. Id rather spend that money on injectors or a new fuel pump to get some real hp. I guess its all personal preferance.
It was .4 hp....as in four tenths of one hp. Sad!!
Well.. the 240SX has a 60mm throttle body compared to the 44mm L28 throttle body.
More air equalls more power.
With a well tuned engine.. and a 240SX throttle body, there has been reports of
Quote:
Tests have shown increases in horsepower by as much as 9% at the rear wheels, and cuts in 0-60 times by .5 seconds
There is a 40% increase in airflow and 10% bigger than stock.
9% from a bigger throttle body in a 170 HP engine.. equalls.. a grand total of 17 EXTRA HORSEPOWER
Now you can get a 240SX throttle body or get an performance throttle body from MSA for $259. http://www.zcarparts.com/store/merch...ry_Code=PFFC14
Well.. the 240SX has a 60mm throttle body compared to the 44mm L28 throttle body.
More air equalls more power.
With a well tuned engine.. and a 240SX throttle body, there has been reports of
There is a 40% increase in airflow and 10% bigger than stock.
9% from a bigger throttle body in a 170 HP engine.. equalls.. a grand total of 17 EXTRA HORSEPOWER
Now you can get a 240SX throttle body or get an performance throttle body from MSA for $259. http://www.zcarparts.com/store/merch...ry_Code=PFFC14
Did you read the section rules?
__________________
1992 Yamaha FZR 1000. 145 Hp, all stock..
9% from a bigger throttle body in a 170 HP engine.. equalls.. a grand total of 17 EXTRA HORSEPOWER
Thats fawkin' awesome!!! So if your math holds true, I can double the size of the throttle body, I will double the horsepower to: 170 x 2 = 340 !!!!!
And to think...all these people are spending big money on turbos, injectors, intercoolers and all that stuff....when all they need is a bigger throttle body!!
I have sold dozens of these 60mm TB's (KA24e). My own vehicle is a VG30e 200sxse converted to a 88 300zx ecu/mfu. The stock vg30e is 51mm and the KA24e is 60mm.
The goal is not HP but throttle response and torque. The car feels and drives much better.
The best ones are NOT 240sx but rather KA24e stanzas. They have the bottom hose connections, vg30e compatible linkage (no swapping), usually cruise control and throttle potentiometer as well as a throttle position switch.
Any pull n save type junkyard will have vg30e maximas/300zx with the 51mm throttle body. This can usually be had for 20-25 bucks. This would be a cheap upgrade from the stock 44mm unit.
I usually sell the 60mm KA24e's for 60 bucks.
Last edited by Crowbar60 : Jan 24th, 2005 at 11:18 PM.
I'll agree with the VERY SLIGHT throttle response. The reason is this: If you have one butterfly valve that's 3" diameter and one that's 1" diameter, and both are open the same angle, the 3" valve will flow more. So yes, it basically means you don't have to push the pedal as far to get the same "response" as with a smallet TB.
However, 40% more flow is simply not true. Half a second off a 0-60 time is also not true. It doesn't take half a second to push the pedal to the floor, no matter how far you have to push it. A few degrees in ambient temperature will make more difference than this. The TB is NOT the bottleneck of the intake system. The difference in the TB's is about .290" on the diameter, if I remember correctly.
The plenum is the big bottleneck of the system on a z31. The second worst is the heads.
And $250 for one of thest throttle bodies is an absolute scam!! People should be ashamed to sell for that much..but if somebody's STUPID enough to pay that for it, they've got to have a mental impairment. (BTW, Crowbar doesn't sell for near that money, so if you want one, skip the link above and get with him for one.)
My latest creation is a use for the throttle position potentiometer that is on the TBs.
I use this to fake out the ecu into believing the cyl head is getting colder as a function of throttle position opening. This enriches the fuel and advances the timing.
Linear Mode
