SR20 / Z33 swap

[Hollywood]

I am sure this has come up, is there a kit availible for the SR20 swap into a Z33? I am sure you need a drive shaft, trany mount, and motor mounts. but it would be nice if a kit already existed.

[Slapshotnerd]

no kit, that i know of. Talk to chris forsberg / LS Auto.

[Hollywood]

its for a customers car.
he wants us to make the kit, I just want to make sure I am not stepping on anyone elses existing designs.
I am thinking its not to complicating, using the SR's crossmember we could probably fab that to the Z33, the motor should fit with out any problem. the trany mounts could be difficult depending on how it fits with the motor bolts in. I have a place that makes drive shafts, that shouldnt be a problem.

I dont know how serious the customer is, but if we end up doing the job I will post up some pics

[Mike Peters]

i dont understand performing this swap in 2006.

chris's car is cool and was really cool back when i 1st saw it because boosted vq's were still blowing up at a rate worthy enough to mass produce al quaida labeled engine covers for them.

now its 2006, and the motors have been figured out, why change it to a 4 cylinder thats almost 1/2 the displacement of the stock one?

whatever i dont know why i even wasted time posting this. to each his own

[Hollywood]

personaly I like the Z as it is, I would keep the motor NA and lighten it up, along with a better LSD and some coilovers.

but for some peope power is a must, and doing the SR swap is cheaper then the turbo kit

[Mike Peters]

i have a hard time understanding that logic.

your looking at 250rwhp from about 4k in engine/parts + labor on top of that. + fabrica

whatever

[Hollywood]

the SR20 motor set was $1000
we are using a crossmember from a clip from a different swap
to install the motor with the fab work I am charging $1200
the stand alone ECU/ and install will be $2000
other labor, pulling the VQ, piping on the SR, will be $500
comes to about $4700

the 350Z turbo kits that we sell start at $5500 installed

so the SR20 would be $800 less, but make 100hp less

[aaronlosey]

unless you do a front mount, fuel pump, bigger turbo, injectors, ect, full exhuast, boost controller.... you will be stuck at the stock vq35 hp with the sr20.

and why doesn't he just do a power fc? 2000 is a bit much for an ecu when the budget is so small. i think i pay 750 for those new, and they just plug right in. the map sensor kit is another 150 or so i think.


anyways, dollar for dollar, hp is going to be cheaper with the vq motor already in the car, your reasoning simply doesn't add up. but if the customer simply wants the swap, or is all out for light weight in the end, go for it. don't do it for the wrong reasons.

[Hollywood]

$2000 for the stand alone includes the E6X, custom harness, map sensor, install, and tuning.
naturaly the swap will include a front mount, and exhaust (thats what I meant by piping) and we will include a fuel pump forgot to mention that.

the swap should make about 250whp (depending on boost settings)

thats about the same as a stock 350Z.

at this point your $4700 into the mods, and its not really any faster, how ever at this point your really only a turbo, injectors, manifold and a wastegate away from 400hp from. and there would be no aditional labor charge if done at the same time, really just $1500 in parts.

in the customers defense, this car will not be a show car or a street car, its going to be a club racer. and having the SR20 is probably alot cheaper to maintain then the VQ35, in race form.

[NismoSigma]

I remeber reading that signal auto did this conversion on their 350Z, heres the link http://www.superstreetonline.com/fea...50z/index.html

Assorted pics....
http://www.superstreetonline.com/fea.../photo_07.html

http://www.superstreetonline.com/fea.../photo_04.html

Hope some visuals help.

Edit: Signal used an SR20 because from what I understand its lighter than a VQ and easier to modify. They used it for time attack so if you are going to strip out the inside of the car to make it club racer than I guess you want it to be as light as possible.

[Slapshotnerd]

I believe chris forsberg was still working at signal auto when he did his sr20 conversion... 2 years before the chromalusion car...

[Ghost of Duluth]

If the customer wants it and is paying you to do it, do it. Who cares what his reasoning is. Money is the reasoning far as you should be concerned. You can't convice people on a forum that it is the right or wrong way. Do it, pocket that moolah and roll on to the next job.

[aaronlosey]

Originally Posted by Ghost of Duluth

If the customer wants it and is paying you to do it, do it. Who cares what his reasoning is. Money is the reasoning far as you should be concerned. You can't convice people on a forum that it is the right or wrong way. Do it, pocket that moolah and roll on to the next job.

i disagree. we had a friend that wanted us to install a ca18 or rb20 in his s14 because he didn't want to spend the full amount on the sr swap. this was a nice 97 kouki, in good shape, with suspension and everything else. his car would have sucked @ss if we would have let him put a ca18 in there, and he is forever grateful for us stopping him and putting in an sr, as he has since ridden in modded ca18 cars, and seen how *Censored**Censored**Censored* they are. if someone puts a relatively stock sr20 in their 350z, its going to suck, suck big time. it will be slower than stock, with an engine with worse power, power band, reliability than the stock motor, and you will have wasted 5k worth of his money. you will have one disappointed customer in the end, who thinks you suck. unless he is a ricer, then he will convince himself that his swap is badass.

[Hollywood]

talking to him a few days ago, I dont think the power is much of a concern for him. I think his biggest reason for doing this is to save money in the long run. going through 3-4 VQ35 motors in a year can get expensive, SR motors are very cheap (especialy when you only need the long block), and easy to rebuild. so 3-4 SR motors will be less over the year.

[Mike Peters]

Originally Posted by Hollywood

talking to him a few days ago, I dont think the power is much of a concern for him. I think his biggest reason for doing this is to save money in the long run. going through 3-4 VQ35 motors in a year can get expensive, SR motors are very cheap (especialy when you only need the long block), and easy to rebuild. so 3-4 SR motors will be less over the year.

i dont know what happened to my other post, but what your saying is 110% stupidity at its finest.

spend $5k to have less power, smaller powerband, a big car with no torque, crappier tranny with one less gear, a harder time finding parts every time something breaks, its completly fornicating stupid in 2007, no matter how awesome your "performance shop" thinks it is.

i think the sheer stupidity of this thread is best illustrated by the fact you posted this on drifting.com's tech forum, as this has been the most active topic in a longtime just due to the sheer idiocy being displayed in this thread.

summary
spending 5k to have a shittier motor than the vq because you dont want to spend money on the vq to have 2x the power = stupid.

/thread.

[Mike Peters]

if you need to do something different/ricertastic/to increase your e-rep on drifting forums, at least do something cool that hasnt been done back in 200longtime ago. put a ls1 in it.

[Hollywood]

this has nothing to do with power, this is a track car. the owner/driver is planning on replacing the motor 3-4 times a year. 4 SR motors is much cheaper then 4 VQ motors (at least at the present) and replacing an SR is faster then replacing a VQ, if you pop a motor during qualifying, you can swap motors intime for the race

[hatebbobbarker]

the owner is an idiot if hes going through 3-4 motors a year, VQs are cheap now anyways, hes wasting his money just to build a kitchy car. no matter how you slice it.

but I think you should do it for th $$$$

[new_to_drift]

when u say he plans on replacing the motor 3-4 times a year.WHY? cause they are bored/? that is absolutely retarded.how about instead of replacing the motor that many times,u build a good motor, tune it well.and not have to replace it even once.i find it stupid that someone would plan on replacing the motor 3-4 times, especially such a relatively new motor.

[new_to_drift]

and from what you said before the sr would end up being $800 cheaper but 100hp less.i would love to find a part that adds 100hp for only $800.that would be awesome.ad i think everyone would have that part

[Hollywood]

well the owner is still waiting on permission from the stewert to use the SR20. you cant really modify the motor to much other then changing gaskets, and he cant run the haltech so either way it will be a factory ecu, so there is not a whole lot of tuning you are allowed to do.
the VQ motor dynos around 245, with an intake and an open exhust I am thinking 260whp
with the SR 225 is what we get out of s13 motor, with a 3 inch exhaust, intake and FMIC, (not sure we can run an FMIC, swaped 240's can) waiting to see what the stewert says.
there is also the option of going with the S15 motor, though the initial cost would be a bit more, he would have more power.

as for blowing the motors, each race is 6 hours long, most of the races are run in temps above 100 (its texas) I honestly cant say how many he will go through, he has done it before and he is paying for it.

[Mike Peters]

you know, with your logic the best bet would be a ka24e.

how your "shop" stays in business or finds peopel stupid enough to let you touch their cars should win you some kind of award.

[aaronlosey]

god i love this thread.



but don't you think a stock na motor making 250whp, which comes in the car, would be far cheaper and FAR more reliable than having a ten year old sr20, running 14psi and costing 5k to make 250whp??? na motors are going to be alot more reliable road racing, as well as being alot better in the texas heat.

and just out of curiosity, what class would you put yourself in for road racing with a motorswap? if your going to reclass your car over a motorswap, it better be a damn good one, that is completely necessary. racing has alot to do with being in the right class, with the right car.


this thread is the sillyness.

[Hollywood]

personaly I would prefere a motor that was NA, when I race thats generaly the car I go with.

as far as rules and class, I have no idea, the owner is checking with the stewerts to see what they say. and they may change thier minds after his first couple races. it would be nice if they had a spec 350z class.

eitherway we are going to end up prepping the car for the track, cage ect. and then he has his own guys that will work on it during the season.

[Mike Peters]

but spec 350z wouldnt allow sr swaps oh teh noes
btw dont you drive a stock turbo II rx7 mr. " i prefere NA" (btw, your also trying to convince everyone here how a boosted 4 cylinder pwns a NA 6 cylinder)