Some guy in a local performance shop wants to trade engines with me. he has a 02 spec v with 10k miles, cold air intake, headers and full exhaust. he said he wants the sr20 because they get better output with a turbocharger than a qr25de. will the qr25de fit a b14 chassis? is this worth the swap?
let me know what u guys think
thanks
tell that gut hes a f**king moron....what dumbass buys a spec v and wants to do a sr20det swap???? If the guy is smart (ya right) have him sell his spec will all mods... then with the money buy a SE sentra B15 chasis and bolt on a turbo or swap a bluebird... same looking car and everything..... and if he still wants a spec-v look alike take all the emblems off and swap the wheels
thats like buying a Gt mustang and swapping a V6 cause u get shitty gas milage
Hey everyone, take it easy on the guy(s). To each his own, remember? Knowing what I know about the 2 engines, it seems that they are both great at what they do, but do their thing in different ways. The QR was built and tuned for prominent low- and mid-range torque at the expense of limited revving capability, while the SR20 is tuned less for low end but designed to rev higher and produce power by doing so. They both have their strengths... and weaknesses... In stock form, however, the SR20 has a much higher horsepower ceiling when putting on a turbo. The stock crank (handles 400+ hp) and the abilty to handle up to 20psi boost straight from the factory are examples of this. In a perfect world, ALL SR20s would come with turbos like they were built to accomodate from the very beginning. The QR though, would run into problems at one point or another if boosted - more internal mods would be necessary for a given amount of boost. In stock form the QR25 (and QG18 too) give you lots of torque in those real-world driving situations, let me tell you lots of get up and go at low RPMs. The dude wanting to trade engines probably has a reason for what he wants to do. So, if it's balls-out power he wants, the DET swap would make sense. Worth the trouble? that's a whole 'nother discussion.
BUT, when I bought my 200SX SE-R this past New Years, the salesman told me that the former owner was just about ready to swap in a QR25DE! He said the engine mounts lined up and everything. It never got done (thank god, otherwise I wouldn't have gotten such a sweet deal on it). Much of the logistics had to be figured out first tho, since the 2 engines are so different. I can't say if it's possible or if the swap would have worked, but the guy was sure gonna try it.... until he decided to just skip ahead and just get a 350Z. It worked out for him and worked out for me!
I wouldn't do it.Your SR20 is a better engine in many ways and the QR has a lot of diferences that would make this a difficult swap to perform.The most striking of which is that the QR is "throttle by wire" while your SR 20 has a traditional throttle cable that is mechanically linked to the throttle.
__________________
1998 Nissan Frontier XE/2wd/5spd 1 owner, 264k miles
1985 Olds Cutlass, 350 Chevy, owned for 14 years
WANTED: 1968-1973 Datsun 510 or 1991-1994 Sentra SE-R http://www.myspace.com/junkyardengineer
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.