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ahh another newbie here with some questions


munk
01-30-2003, 10:40 AM
hey guys, im fairly new to 240s and i am trying to plan out a motor/turbo build for one im looking at getting.

i know you dont want to hear this but im experienced with hondas:rolleyes: but id like to get into this more than be in that... anyway i dont know all the differences between s13-15 and things like that, so if anyone could explain or refer me to a website that has some info explaning it thatd be great.

oh to tell you my rough plan right now: ive been wanting/researching the sr20det swap with mild turbo build and lots of suspension upgrade (i will be building this car for road courses, etc) but lately ive been seeing alot of praise to the ka24 being turboed with results competing with the sr20det. can ya guys point me in the right direction?

thanks

NISSANSPDR
01-30-2003, 11:54 AM
Well just for info sake on the SR's

S13 205HP
S14 220HP
S15 250HP

Now for road courses I think the KA24DET is definitely the better choice since you will have more torque than a SR setup...SR's tend to be more high rev'ing

There are two kits you might want to look at...

Nsport (www.nsport.com)
F-Max (www.f-max.com)

Stage I for each is around 240rwhp; Stage II for both is around 300rwhp

I think a Stage II with nice coilovers and tires and a brake upgrade could make your car a killer track car...

J SPEC SilEighty
01-30-2003, 12:02 PM
Here's something I wrote a couple months ago for somebody on here...

In the USA the 240SX came as the following:
- S13 chassis - 1989-1994 There was a coupe and a hatchback version. There was also a limited edition convertable version. When going for the S13, most people go for the 89-93 because the 94 was available strictly as a convertable with an auto tranny. From 1989-1990 the coupe and the fastback both came with the KA24E. That's a single cam motor that puts out 140 HP. From 1991 and up it came with the KA24DE, a dual cam motor that puts out 155 HP. The S13 was also available with HICAS which is a 4 wheel steering system. Some people like it a lot and some hate it. I've heard that if you plan on drifting, you don't want HICAS.

- S14 chassis - 1995-1998 Here it was available only as a coupe but got a different body styling. There are 2 different S14's though. From 1995-1996 the S14 came with oval headlights. From 1997-1998 the headlights were changed to a slanted, or "shark eye" style. That was the only main difference between the 2 S14's. The S14 came with the KA24DE.

In Japan it came as 2 different models, the 180SX and the Silvia.

- S13 chassis - 1989-1998 The 180SX is the japanese version of our 240SX fastback. They are the same except for the motor that was in it. From 1989-1990 The 180SX came with the CA18DET. From 91+ the 180SX got the ever so popular SR20DET. From 1991 to 1995 I believe the SR20DET was the "redtop" and is signified by it's red valve cover. In 96-98 the 180SX got new taillights that have round circles on each side. Also in 96 the 180SX got the S13 SR20DET Blacktop. This motor was the exact same as the S13 SR20DET Redtop except the blacktop was just newer. Remember, this is the S13 blacktop. The S14 blacktop is totally different. The silvia was also made on the S13 chassis in japan but only until 93. The S13 silvia is identical to our S13 240SX coupe except it had a different motor and different headlights. The Silvia came in 3 models in the S13 chassis. The Jack, Queen, and King. From 89-91 the Jack and Queen both got the CA18DE. From 91-93 the Jack and Queen both got the SR20DE. From 89-91 the King got the CA18DET. From 91-93 the King got the SR20DET. The SR that came in the S13 silvia's were the redtop SR's. This SR20DET had a T25 turbo

- S14 chassis - 1994-1998 On the S14 chassis, only the silvia was made. There was no 180SX made on the S14 chassis. The S14 Silvia is identical to our S14 240SX except for the motor. The S14 Silvia is like the Jack, Queen and King on the S13 chassis. The Jack and Queen both got the SR20DE while the King got the SR20DET. This SR20DET had a T28 ball bearing turbo. VVT was introduced to the SR20DET on the S14 chassis.

- S15 chassis - 1999- We didn't get the S15 chassis in the USA. The S15 got the newest version of the SR20DET. It also has the T28 ball bearing turbo like the S14. The S15 SR20DET got bigger fuel injectors that were 480 cc/min stepped up from the 370 cc/min injectors of the S13 and S14. The S15 also got a 6 speed transmission, but is said to be weak with drifters due to the thinner gears and break around 350-400 HP. I haven't really seen this proved because the Blitz S15 has about 450 HP and is still using the stock S15 tranny. VVT was used once again.




As for SR or KA-T... I'm with NISSANSPDR, and I say go with turbo KA. A couple reasons, bigger displacement = more torque :D. Say that something breaks on your KA, then just get a ride down to the local car parts store and pick up a replacement. Something breaks on your SR... good luck getting that part soon. the price of the nsport stage 1 kit is $3995 and that will give you 240 hp AT THE WHEELS. You could get an s13 sr20 swap done for this amount as well but this will just be enough to get it up and running. With that you will have 205 at the crank, which would be somewhere around 160-180 at the wheels. I just think by going KA-T you get more bang for the buck. Either motors are good choices though. Good luck :)

TatII
01-30-2003, 04:27 PM
well i have to disagree on the KA-T vs SR T motor debate. the KA-T is better for drag racing, but the SR is a better racing motor, beucsae it lieks the upper rpm ranges more, where as in the KA is more of a mid to low end car. when your racing, your engine is near redline most of the time. the SR is designed to be always there, where as in the KA won't last too long up there with stock internals. plus its no where near as rev happy.

munk
01-30-2003, 06:32 PM
NISSANSPDR, SilEighty, and tat.. thanks alot for your replies here.

i dont think this has much to do with anything, but id also like to bring a JDM front clip over and do the slivia front end/headlight conversion. also i plan to get the gen that includes the 92 model.. im not sure what years that spans.

i have to run right now so ill go over everything in your posts later (mostly you SilEighty :) ) and ill give and hopefull yget more details. thanks again

NISSANSPDR
01-31-2003, 10:46 AM
Originally posted by TatII
well i have to disagree on the KA-T vs SR T motor debate. the KA-T is better for drag racing, but the SR is a better racing motor, beucsae it lieks the upper rpm ranges more, where as in the KA is more of a mid to low end car. when your racing, your engine is near redline most of the time. the SR is designed to be always there, where as in the KA won't last too long up there with stock internals. plus its no where near as rev happy.

It's just I know so many KA-T road racers...TY Yap and Chris May both have KA-T's and they are good road racers...there is a reason why they have those and not SR's...I am gonna go w/them since they've been around and know what's...not giving way to the SR frenzy...

munk
01-31-2003, 07:30 PM
thanks for the info on both motors and the comparisons guys. i think i would rather go with an sr20det.. the powerful high revs would be better for road courses i think

so now, i assume that the sr20 of choice is the s15's JDM 250hp motor, since the s14 had 220hp and s13 had 205. now my question is this: is it possible to put the jdm s15 sr20det into an s13 chassis? that is the kind that i am getting (92 coupe) and i assume that it would, but are there any common known problems i would be running into

J SPEC SilEighty
01-31-2003, 10:09 PM
S15 motor is going to cost you a TON of money. If you bought the s13 sr, you could have a turbo upgrade on it and be putting out more then the s15 sr and it would be about the same price.

If you do the S15 SR swap then your going to need the S15 diff because the speed sensor is in there...SR swap says that the transmission mounts will need to be slightly modified. They also say that tThe driveshaft has different mounting location from the S14 / S15 chassis so that will need to be custom fabricated. IMO, the S15 sr would just be a waste of money.

KrNxRaCer00
02-01-2003, 02:36 AM
completely off topic, but i like that new shot of ur car TatII. looks sweet at night an in the rain. :D

TatII
02-01-2003, 12:46 PM
hahah thanks man, i've been gettin alot of nice comments about the pic lately. :D

Fliquer
02-04-2003, 08:26 AM
the KA-T is better for drag racing, but the SR is a better racing motor, beucsae it lieks the upper rpm ranges more

I gota go with TatII on this one. The KA-T is a powerful engine, but it wasnt designed with motorsports intentions (it was built for nissans pickups). The SR was designed with racing in mind, and it was given better cooling capacity and run-hot durability. Plus, it has a power curve that is suitable for racing.

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