Quote from NX2KRidah:
ok the single only thing you have to look at here is that the qr25de has a compresion ratio of 9.5:1 so if you can turbo the sr20 you can also turbo it but since it has a bigger displacment it will take a turbo alot better than sr20 and ka24 the qr25 also has vvl it's called cvtc. (let me clear my throat uhm) also they may be making stroker kits because if someone makes there sr20 a 2.2 they can't use the regular crank anymore not to increase torque you want torque get a turbo thats all you'll need. no need in wasting thousands of dollars on somethiong usless you guys arn't nhra drivers your street racers right? why wast thousands of dollars to beat a hond crx you couldve beat in stock form.

1.) A turbo will work way better with an sr20 than those other two...why? The stock redline for an sr20de is 7,500 rpm. Now, I'm not sure on the redline for the qr25, but I believe it is 6-6,500, correct? Now, a turbo produces more power the faster it spins, physics pending of course. So, this could only mean.....a turbo would be spinning just a tad bit faster on an sr20 than it would be on a qr25...correct? My throat is cleared.

2.) Why do these companies produce stroker kits for the sr20? It's called JGTC. Do some research son.

3.) Were all street racers?:rolleyes: Hahaha.

You have already ruined your reputation on this board, as you can see by the last thread of mine. Maybe you should just leave, or better yet, change your name and we'll never know, but just don't speak up.

And never talk another person's mother. It's a good way to show disrespect and to get yourself hurt. Learn some respect for not just others, but yourself as well, then try again.

Moderater: Feel free to lock this thread.

You do know that there is a private message feature on this forum? It was locked for a reason

lockin in 1.......2.....3.... ;)

......................4......................5.... .......................6


hmmmmmmmmmmmmm

I can lock this thread, but I don't see anything wrong with it. No one is fighting, or acting like a jerk. I'm confused.

not gonna waste my time with people who need to waste there time and get the last word. i may not be a genius on stroker kits but i know more about cars than you every will not just nissans. you don't even know the redline in the spec v and your on the sr20de forum your supposed to at least read up on the future. if you did you would know that it revs at only 6500 but thats only because they hollowed the valves. with a new set of cams and valves and retainers your more than capable of 7500 revs. we'll i'm a retard since nissan made the qr25de to take the place of both the ka and sr i guess i'm stupid for thinking it actually worked.

ok first you don't know how a turbo works let me teach you something here.
turbo is run of exhaust gas and pressure in english:
the more air going into the car the more exhaust wich means the more the power the turbo creates.

ok know what you said is for a super charger since it's powered by a belt around a pulley or crank wich means the higher the rev the more power you get.

since the qr25de sucks more air in because it has such a big displacment it's better for a turbo. ok let me clear my throat.

OWNED!!!! :D :D ;)

Damn! Quite the heated discussion. I have one thing to say...why is the rev limit on a spec v important. If I'm right the new sentra se-r spec v doesn't have an sr20de engine in it, hence making it not an sr20de, furthermore making it a stupid thing to bring up on the sr20de forum when you are trying to bash someone.

Most importantly, valve SPRINGS. Not new cams, valves or retainers. SPRINGS. That will let you rev more. The QR25DE valve springs are the size of lawnmower valve springs.

Just because it has bigger displacement, does not mean the QR25DE is better for turbo. Boost for boost, yes, the QR25DE will make more power because of displacement, BUT. This is a big but. Ultimately, the SR20DE will be able to handle more boost. I'm pretty damn sure the QR25DE will not handle 400+ whp and 24 psi of boost on stock internals with an open deck. What does more boost mean? More power. So technically, NOT owned.

Terrin is right, the open deck really limits what the stock bottom end can handle......... just look at hondas, even something with low compression like a b18b cannot handle all that much boost unless you resleeve, and although im not sure on this one, I doubt that the other internals(pistons, rods, crank) are as beefy as an SR20 since it doesnt share architecture with a turbo motor like the DET

Originally posted by 92SE-R
So technically, NOT owned.


Terrin, I wasn't being serious.

Neither was I. I frequent the ClubSI forums just like you. :D

Well...I love a flame in the making :)

The QR25DE is not ideal for a boost. The SR20DE is way better at ahndling more boost than the QR ever will.

First, the QR is open deck while the SR is colsed deck. That by tiself makes the SR much better at ahndling boost.

Second, The QR has a Very looooooooong stroke. The stock rods are also pencil thin. They cannot handle the stress generated by too much boost.

Third, the QR has briggs and Stratton springs that limit the revving to 6200 stock. You need to remove these springs with better aftermarket ones.

You can boost an SR on stock internal with at least 20psi. you cannot do the same with the QR.

I think the QR25DE is a great NA motor.

I think dude's should stop driving PUSSY trucks!

Originally posted by 92SE-R
Neither was I. I frequent the ClubSI forums just like you. :D Just for you ClubSI frequenters.
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http://personal.atl.bellsouth.net/lig/g/a/gaving/pictures/funney/thisthreadsucks.gif :D

I've heard people say that the SR20 has a closed deck and the QR25 has an open deck, but what does that mean? If I were to look at the two engines, would I be able to see a difference?

Thanks,
Ben

geez, we got a lot of clubsi guys on here :)

Originally posted by NXBen
SR20 has a closed deck and the QR25 has an open deck, but what does that mean?
Thanks,
Ben

This topic just came up over here --->http://www.sr20deforum.com/showthread.php?s=&threadid=18113&pagenumber=2

ok you all make good points but the fact is that there is no turbo for the qr so you can't say bad things about it if it hasn't been done on it yet. the qr wether you like it or not will take the place of everybodys favorite nissan motor it was made to. wether it'll be better or not will be left to us to debate over years but right now it's way to early to debate thats it's not gonna do we'll i'm a nissan fan for life so i love all of there cars and motors. and i think the qr25 is a good replacement for the sr20 you never know what could happen when you put stuff in a motor. on paper the spec v is slow in real life my friend has raced a eagle talon tsi all wheel drive ancd beat him like nothing and he eats eclipses gs-t's and gs-x's for breakfast. those cars are supposed to be faster. he also stayed toe to toe with a nissan 200sx se-r with headers exhaust and intake all the way down the bridge and the spec v was stock. my point is we'll see what happens when people start turbo charging the qr then we can say who's wrong or right.