Dyno Sheets

Discuss topics related to the CA18DE and CA18DET series engines.
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float_6969
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UK guys say 350HP. They have the Autobahn though, so that might change things a bit.


Luchitosan
Posts: 185
Joined: Mon Dec 07, 2009 3:43 am
Car: Nissan 200sx Ca18det 4 port
Location: Argentina

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Sorry Float maybe i explain wrong or don't undestand you very well.

If i say 350 whp = is real horsepower to the floor (to the wheels, right?)
What i mean is how much power estimeted is lost in gearbox, clutch, diff, etc, using the OEM tranny (350 + 15 tranny = 365 crank hp)

Sorry my english is not the best .

Salute.

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float_6969
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Yes, whp is HP to the wheels.

No manual transmission looses more than 10%. Most are in the 5% range. FWD is actually a few percent more efficient than RWD due to the lack of a rear differential splitting the power.

Luchitosan
Posts: 185
Joined: Mon Dec 07, 2009 3:43 am
Car: Nissan 200sx Ca18det 4 port
Location: Argentina

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Thank you Float. When i get my engine running i post my dyno sheet !

Salute

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s13drifter88
Posts: 1111
Joined: Wed Jun 23, 2010 7:40 am
Car: 93 S13 Coupe CA18DET (Money pit)
1996 D21 Hardbody (Work truck/daily)
!993 Del Sol (Daily)
1987 Pontiac GTA (Drag project, other money pit)
1989 SOHC S13 Buzz Car
Location: Huntsville, AL

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Depending on wear and tear on the trans will depend on power lost through it. You can eaxpect 10 to 15% on a good but used trans and 15 to 20% on a really worn abused trans. Newer manual trans that use ATF now lose less partly due to the lighter viscosity fluid but we still run gear dope so thats part of our 10-15% of loss

Nategreat923
Posts: 210
Joined: Tue Apr 01, 2008 5:39 pm
Car: 1992 240sx "Sil-Vert"

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Does anyone have a dyno graph for a near stock CA w/ GT2560S (S14 T28)

240Clarke
Posts: 81
Joined: Mon Feb 13, 2012 3:00 pm
Car: 1992 Nissan 240SX coupe

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Here is my dyno sheet.
CA18DET (rwd)
84mm Wiseco pistons
K1 Technology rods
ARP rod bolts
ARP main studs
ARP head studs
ACL Race main and rod bearings
Crank polished and balanced
Head milled and block decked
Cometic 85mm x 1.3mm headgasket
Stock head (stock cams, no porting or polishing, stock valvetrain)
Terribly warped log manifold purchased from this forum (leaking badly on 3 cylinders during dyno run)
Precision 3431e @ 20.1psi
Precision PW39 wastegate
FMIC
3" turboback exhaust (catless)
Denso 660cc injectors
Nismo FPR @ 51psi
Circuit Sports 255lph pump
HKS Ver4 BOV
N62 MAF

Tuned on Nistune by John Kerr of JK Tuning in Carlisle, PA

-O2 sensor and knock sensor not functioning, terrible exhaust leak at the head/manifold.
Have sense switched to a tubular manifold.


Image

Image

silvios
Posts: 42
Joined: Mon Oct 17, 2011 10:35 pm
Car: 1989 Nissan Silvia CA18DET

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1989 CA18DET

-Internally Stock
-Walbro 255l Fuel Pump
-Front Mount intercooler
-Pod Filter
-3 inch turbo back exhaust / 100 cell race cat
-S14 bush bearing turbo (rebuilt)
-Mines ECU
-Unknown Injectors (could be GTR injectors)

Car made 196rwkw (265whp) @ 16psi NOT leaning out. I was rather suprised at the capability of the Mines ECU. I am also under the impression the injectors are certainly not stock 370cc injectors.

I do not have a dyno sheet (forgot the print out), but here is the video:

http://www.youtube.com/watch?v=7mgbNjU0Lc0

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Izento
Posts: 438
Joined: Fri Dec 12, 2008 12:20 pm
Car: RPS13

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silvios wrote:1989 CA18DET

-Internally Stock
-Walbro 255l Fuel Pump
-Front Mount intercooler
-Pod Filter
-3 inch turbo back exhaust / 100 cell race cat
-S14 bush bearing turbo (rebuilt)
-Mines ECU
-Unknown Injectors (could be GTR injectors)

Car made 196rwkw (265whp) @ 16psi NOT leaning out. I was rather suprised at the capability of the Mines ECU. I am also under the impression the injectors are certainly not stock 370cc injectors.

I do not have a dyno sheet (forgot the print out), but here is the video:

http://www.youtube.com/watch?v=7mgbNjU0Lc0
I heard the stock capacity of the 370cc injectors is about 250whp.

silvios
Posts: 42
Joined: Mon Oct 17, 2011 10:35 pm
Car: 1989 Nissan Silvia CA18DET

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Izento wrote:
silvios wrote:1989 CA18DET

-Internally Stock
-Walbro 255l Fuel Pump
-Front Mount intercooler
-Pod Filter
-3 inch turbo back exhaust / 100 cell race cat
-S14 bush bearing turbo (rebuilt)
-Mines ECU
-Unknown Injectors (could be GTR injectors)

Car made 196rwkw (265whp) @ 16psi NOT leaning out. I was rather suprised at the capability of the Mines ECU. I am also under the impression the injectors are certainly not stock 370cc injectors.

I do not have a dyno sheet (forgot the print out), but here is the video:

http://www.youtube.com/watch?v=7mgbNjU0Lc0
I heard the stock capacity of the 370cc injectors is about 250whp.
Ok Cool - This is enough boost for now.

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mdb4879
Posts: 419
Joined: Sat Jul 02, 2011 9:36 am
Car: 1987 Nissan Pulsar SE (CA18DET)
1990 Nissan 240SX (KA24E)
1995 Acura Integra GSR

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Here's my latest dyno on my new setup:

Image

Power mods are:
KA throttle body
SR T25
CA16 intake cam
Exhaust shop 2.5"-2.25" exhaust
Janky exhaust shop intake (no intercooler)

First pull was on 7psi. Second, idk, third I checked later to be 10-10.5 psi and it hit MAF cut. 185whp/180wtq on a third gear pull. 7psi was 149whp/143wtq. Looking at the wideband I was really rich at the upper rpm's, even for a stock tune. My idle air stuff was all unplugged and it wasn't plumbed into the intake. I noticed when it's like that it still flows air through the valve, so maybe when I have everything set up correctly it'll lean out and I'll make more power.

Buddyworm
Posts: 416
Joined: Tue Jan 09, 2007 2:55 pm

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Figured I'd add my chart to the list!:

Image

Stock Shortblock
2mm MLS Headgasket
HKS 256 IN/EX Cams
Stock Valves
Pocket Port n Polish
TD06-20G w/ 10cm^2 turbine housing
Ramhorn Chinafold
3" Turbo-back exhaust
Spearco Intercooler
Haltech PS1000
Custom Wiring Specialties CA18DET Pro Tucked Harness

Turbo spools hard up to 17psi after which point I taper it up to 20psi. I run into compressor surge if boost rises too quickly.

Tuned by me on our Land-and-Sea Axle-Hub Dyno on 94oct (R+M/2) gasoline.

dash
Posts: 575
Joined: Fri May 05, 2006 4:07 am
Car: s13 ca18

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Very nice setup! Looks strong..... must be a rush driving it.

what source for the 20G ?
Does that 20 have a surge ported cover.... or would it help ?

Buddyworm
Posts: 416
Joined: Tue Jan 09, 2007 2:55 pm

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dash wrote:Very nice setup! Looks strong..... must be a rush driving it.

what source for the 20G ?
Does that 20 have a surge ported cover.... or would it help ?
Funny you should ask dash!

The turbo is actually an old Greddy item. Had an 8cm 3-bolt turbine housing on it before I swapped it to a Kinugawa 10cm T3 to work with the Chinafold.


Below is a more recent chart with a Kinugawa surge ported compressor housing installed. I've got boost spiking off 25psi after which point it tapers to 20psi. No worries about surge at WOT any more, though it still surges a teeny bit at part throttle (I'm thinking it may actually be prerotation.)

Same setup as the previous chart save for the comp hsg:
Image

Notice the lower power output and much, much slower spool.

Couple things going on here I think: The surge ported housing is less efficient than a non-ported housing because surge ports are just recirculated boost leaks and I've still got the same old Greddy compressor wheel. A modern, more efficient compressor wheel would probably work better with the ported housing, improving spool and power.

This setup is slower than the previous setup, but if you use your gears right that 25psi spike feels awesome. I've got the short rear end too. 1st gear is actually useful for getting you up into the sweetspot in 2nd with this setup. My 2nd to 3rd shift puts me at ~5000rpm so it works great on the roadcourse.

I might try and go back to the non-ported housing with some guide vanes in the intake pipe to try and stop what I now suspect is prerotaion, but I think I've about had it with the old MHI tech. Time for a BW Airwerks or something, fewer compromises, better powerband...

dash
Posts: 575
Joined: Fri May 05, 2006 4:07 am
Car: s13 ca18

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Interesting. The greddy 20 seems like a better candidate for a motor it won't surge on, with 8cm & std cover
18g td05 seen on quite a few hot ca18s, was probably the prescribed mhi
I secured the faithful old dog; 50trim t3/t4 based on hot street ca18 & miata 1.8 dynos
Precision 5558 also a solid ca18 performer(on a budget); 10.3 sec street car @22psi is amazing
http://www.rollaclub.com/board/topic/51 ... 8det-ke55/

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float_6969
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CA18DET
Bored 1.5mm over
Supertech pistons
stock rods and crank
Nissan bearings
4 port head
port match and polished head
HKS 264 hydro cams, intake and exhaust
CPC plenum
Turbo manifold is HKS T4, divided, un-equal length, external wastegate
Borg Warner EFR 7064 w/t4 1.04 AR twin scroll turbine housing
3" down pipe, with wastegate merged back in, no cat, 3 BRM cat back
CAI for turbo
Custom liquid-to-air intercooler setup
Runs are from 2K-8K RPM
13, 15, & 17 psi respectively. More boost to come.
Image

Buddyworm
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Joined: Tue Jan 09, 2007 2:55 pm

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Pics aren't working there float!

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float_6969
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fixed

Buddyworm
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Nice job. There's lots left in that 7064 too.

What gear was the run in? Too bad you didn't have a tach pickup.

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float_6969
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Yea, I think the turbo probably has another 100hp left in it with out even pushing it.

All runs are in 4th.

I called SDS and they gave me the info I need for a 12v tach output that has a good clean signal, so I should have torque the next time I go back.

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mdb4879
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Car: 1987 Nissan Pulsar SE (CA18DET)
1990 Nissan 240SX (KA24E)
1995 Acura Integra GSR

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Not sure why, but I still can't see the image. What were the respective numbers?

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float_6969
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Grrr, I'll host it somewhere else. It's not working for me either.

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float_6969
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Fixed, AGAIN. Grrr.

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mdb4879
Posts: 419
Joined: Sat Jul 02, 2011 9:36 am
Car: 1987 Nissan Pulsar SE (CA18DET)
1990 Nissan 240SX (KA24E)
1995 Acura Integra GSR

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Great numbers. It looks like you should be around 290-300wtq. The impressive part is how soon the power is coming on. at 3500rpm you're getting a good bit into boost, and it looks to me that full song is around 4100rpm. Is that about right? I'm so glad to see a recent CA making good power here in the states. I can't wait for you to crank it up and see what it'll do. Maybe in the next couple of years I'll finally rebuild mine the way I always wanted to. Are those Supertech's 8.5:1 or did you order a custom set with a bit more compression?

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float_6969
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I'm guessing about the same on TQ. I'll have a tach signal the next time I go, so I'll have TQ numbers next time.

I'm constantly impressed with how fast the power comes on with this thing. Your numbers are pretty close. I see positive boost pressure before 3K, it's starting to really pick up by 3500, and by 4K, it's on full boost. Boost is rock solid at 17psi out to the 8K RPM redline I have set. I did a 19psi run, but the wastegate was acting up and wouldn't hold boost and it fell back down to 17psi by redline. It would have hit right around 400whp had it held boost.

The supertech's are standard 8.5mm x 1.5mm overbore pistons. I have the compression figured at more like 8.8:1 with the overbore.


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