Turbo vs Stroker? whats better?

[lordbiotree]

I'm looking into buying either a highly tuned stroker or Turbo (even twin turbo). Which one is capable of the most Horse Power?

I figure a stroker will produce more go power off the line rather than waiting for the turbo's to spool up. I'm leaning more towards a stroker and thoughts?

It'll be going into my old 71 parts car. She's ready to handle major power (new stronger solid rails). I've replaced the gas tank with one from a 78Z and ran bigger fuel lines. She'll see some track time when able to.

Thanx in advance for all your advice

-Brandon

[TKR514]

Well, I would have to say that a Turbo will make more HP than an N/A stroker with all else being even. My guess is that there is a limit to compression(you soon become a diesel) but less limit on boost(0-30psi). Getting a lot of air and fuel through the engine in a given time will make the HP.

Now, if you add NO2, you can add even more fuel and get even more power <G> but that was not your question.

Best of luck.

[That Ozzy Guy]

Don't forget you can supercharge the stroker so you will get instant boost if you don't like the turbo lag.

[thefastestz]

Supercharge????

Is there a supercharger product that is L motor compatible?

I've been wondering about that for a long time.

[GTZZZ]

Every time someone asks about a supercharger the response is about the old roots style blower that uses a single Holley carburator. Then say it's not worth doing. I would like to install a vortech style centrifigal supercharger, like on modern mustangs, on a 3.0 liter stroker motor with fuel injection. My boss has a 1997 BMW M3 with this set up. His car is making 450 dyno hp at the rear wheels, in a 3.0 liter straight six setup.

I have been searching for a while to see if anyone has done this setup with no luck. If anyone has any info or feedback on this idea it would be appriciated.

[TKR514]

Well, I always assume that there is a reason WHY things are the way that they are. Since turbo's are plentiful and superchargers are not, there must be either a cost or mantenance or drivability reason why they are not around. They seem to be a better solution, but very few street cars use them.

I guess that if you wanna drag race a 1/4 mile, that's where those devices seem to be the prefered method. If you want to street it, Stroker or turbo seem to have the nod.

[Zpeed]

turbo most of the time is actaully cheaper than supercharging, thats why people turbo rather than supercharge,

and theres alot more range for turbo cars out there compared to supercharged cars

[PrOxLaMuS©]

Superchargers... are belt drivin turbochargers, are more expensive and are much much easier to install, and spool up faster. They can provide up to 55% increase in power. That's why those massive drag cars, that hit like 255MPH in about 4 seconds, use Superchargers... no lag.

Turbochargers... are more efficient, as the exhuast gases spin the turbo to compress the air. They are cheaper, can provide 30-45% more power than your stock engine and are much more difficult to install.

[Dreco]

I have a 3.0L stroker, so call me a little bias, but damn does it sound mean. Everyone keeps looking at my motor for 2 more cylinders. Beyond how you drive it, take care of it, who built it, ect. Does one engine have any better longevity over the other???

[thefastestz]

I love the sound and look of the triple webers, header, and 2 1/2" setup.

For my project it seems i am going to go turbo instead because of the Hp gains easily achievable.

I would change my mind if I could supercharge a carb N/A set up and get like 300

horses.

I am pretty sure that would be hard to do though and fuel injection is the best way.

If I gotta keep the FI then I will just go turbo.

[lordbiotree]

thefastestz-

"I love the sound and look of the triple webers, header, and 2 1/2" setup"

-------------------------------

That's what I would like to have. So I take it I should go stroker with a home made type blower?

How well will a L-series engine take to a supercharger? Is there anything to watch out for?

Rebello racing told me it'll be around 5K. From what I've read they build great engines. Is there any where els that custom builds strokers?

Thanx,

-Brandon

[Ivan]

I have never seen a supercharger put out more that about 7psi is that a supercharger's limit or is that just because they are usually on v8's that can't take more that 7psi?

Also I have seen several RB26DETT's engines (in GTR's) putting out 1300hp+, there is one a couple of blocks down from me that has 850hp (ish) that's what, 430% more hp (well I suppose there is other stuff done to it as well) but still it's not uncommon to see some turbo engines (with a bigger IC, turbo and engine management) with 14.7 even 21.7 psi so that should be 100% - 150% more hp?

Also if your racing it, it won't get low enouth that the turbo lag would matter would it?

what turbo engine are you thinking of?

and how much do you want to spend?

and do you have a target hp figure?

[lordbiotree]

I will not be racing, just running around the track for fun.They dont have any tracks here. I have to go way out of my way.

My goal is to reach 400hp+

I've been looking into the RB26dett.

The only problem is finding parts

I'm leaning more towards an 82ZXT. Working my way up to 400hp. By my research the L-series turbo it'll only make up to 400hp and not much more.

It seems more feasible to go with the L-6 turbo due to parts, cost.

I don't want to spend no more than 6500 on the engine.

If I go with the L-6 maybe I could drive it as a daily driver.

All work will be done mainly my me.

-Brandon

[carguyinok]

Look here. http://freespace.virgin.net/c.coleman/supturb.htm

[Dreco]

Well, one of the reasons I went with the stroker from Rebello Racing was because thier shop was down the street from where I worked. Plus they were willing to work with a rookie ( me, I asked a lot of questions) The 240Z's and 510's in SCCA that were coming in first at Infineon all had Rebello engines. That was enough for me.

[Ivan]

This guy has 400hp from his zxt (he is also a member of this site I believe):

http://www.geocities.com/spized1969/

There is another guy on this site with a stroker with 235RWHP, I don't think you would get more than that out of it, at say 25% driveline loss that's over 300hp at the flywheel and it's hard to get more than 100hp / litre from a NA carbed engine.

The RB26DETT will supply 400RWHP relatively easy but there are cheaper options (but as you said the issue will be availability) such as RB20DET and RB25DET, they are much cheaper than the RB26 (the RB20 is $800USD over here compared to $3500 for the RB26) and this guy has 360RWHP from his (I think it just has a T04 air compressor / T03 turbine hybrid + new ECU):

http://www.members.optushome.com.au/charleswilliams/

As for the availability issue, someone has said the skylines containing these engines will be sold in the US soon.

[Inf]

I don't think I have seen anything solid about the R35 having an RB26. Most people are guessing it will have a V8 or turbocharged V6, maybe the v6 from the 350z/g35 since they seem to be throwing that into everything lately.

It may be some time yet before we hear anything legit about R35 GTRs being sold in the US, the only thing I have heard solidly confirmed about it is that there will be a LHD model.

[thefastestz]

400HP?!!!

You gotta go turbo.

[lordbiotree]

My bother (who runs the local CarQuest) told me most of the parts would be special order with any RB-series engine.

Any body els have any success?

What's up with the 83zxt? I know it has hydraulic lifters. What makes them so bad?Whats positive?

81,82Zxt-Seems to be the best pick. What makes them so good?

Is there any gotchas? You know, things you don't know untill you've dont it.

Which ever I go with 81,82,83 I plan to buy it in perfectly running condition with a rebuild within past 5-years.

As for now RB just doesn't seem possible

I'll be doctmenting everything. With Pictures and vedo tape. When finished I'll give it all to Mike.

I'll post as much as I can up at geocities to stay forever.

[ZmeFly]

and im a little biased but i would have to say that you would need to go turbo for the hp that you want and there is nothing wrng with the P90a head.

my 280ZXT has one with 177k on the clock running 15# of boost and is still going strong:)

and on the 7th day god created booooost!

[carguyinok]

http://www.datsuns.com/Tech/tech_dept.htm

Click on Dyno charts

Sorry about the post from another site but..... I feel that some people need to see some real world HP numbers.

Please dont take this wrong I am looking to help give a clear view on real HP #'s and I am in no way saying 400HP cant be done. :stupid: It just takes money and lots of it at that.

[Mr Camouflage]

Originally posted by thefastestz

Supercharge????

Is there a supercharger product that is L motor compatible?

I've been wondering about that for a long time.

Sprintex superchargers (now owned by advanced engine componants - AEC - http://www.advancedengine.com ) make a non roots type supercharger that was used on the supercharged mustang.

I've seen one of these superchargers in a datsun ute on an A or L series nissan 4 cylinder engine.

[thefastestz]

Thanx Mr. camouflage.

carguy inok i didn't see any L28et dyno specs maybe i am blind.

Very interesting info!!

[carguyinok]

Your not blind I just wanted to show people some real HP numbers. I think its just way to easy for people to loose touch with the real world of HP.

I am sure that the people with the 240s and 280 thought they where way over what they got and walked away looking like :sleepy: But did knowing the real numbers change how much fun the car is or how fast it would go ?

More then anything I posted it for the point that you could get a Z running like a bat outa hell with alot less then 400HP and no need to hunt for import only parts.

[thefastestz]

Good point. If your 240z has only 107 Hp

then 260hp from a stroker would make it very HOT!!! Thats more than doubleing the HP!!!

But..........I have a heavier 280z and 300hp (*from an L28et heavily modded $$$$)) sounds better to me than i thought; thats 180hp over stock!!!