Who has the most powerful CA on these boards!

[boost_boy]

All of you guys are building and or dreaming of building a high powered CA18DET motor. To those who have visited the dynomometer, how much power has been made at what boost levels and posting pics of dyno sheets would be nice. I think this will be good for the archives once enough information has been compiled. I'll start My best dyno run is with my girlfriend's nissan sentra (now destroyed) with a stock CA18DET, a T3/T04B stage 1 turbo with welded T3 flange to the stock exhaust manifold that had a nasty crank while turning the dyno rollers 4 times.

1st run: 282.6whp and 240.2lb/ft. of tq.@15psi of boost in 4th gear. Peak hp was achieved at 6400rpm in which I held the pedal to 7400rpm with hp flat lining, but torque dropping. Speeds reached was 122mph in 4th gear.

2nd run: 284.5whp and 235.2 lb/ft. of tq.@15psi of boost in 4th gear. Peak HP was achieved at 6400rpm in which I held the pedal to 8400rpm with hp staying consistent to 7500rpm, but trickling down afterwards. Tq. fell in a gradual slope after 6400rpm.

3rd run: 286.1whp and 235.2 lb/ft. of Tq.@15psi of boost in 3rd gear. Peak hp was achieved at 80mph and remained pretty consistent till the pedal was released at 102mph. Tq. fgell quickly at 78mph.

4th run: 299.8whp and 246.9 lb/ft. of Tq.@ about 16-17psi of boost in 4th gear. Hp remained pretty consistent, but torque started its usual slope downward. Top mph on this run was 128mph.

5th run: 312.5whp and 263.9 lb/ft. of Tq.@18psi of boost in 4th gear. Hp was remained extremely consistent all the way until I released the pedal. The Tq. slope was not as steep as previous runs and the top mph on this run was 125mph.

All of this was done with the SDS system, MSD 50LB/hr injectors, a stock manifold and a T3/T04B stage 1 turbo. No tuning on the SDS was done and no fan was placed on the intercooler. I'll post back later next month with the 2 new cars that I'm building. All the info here is very factual as I narrated all of the dyno sheets I have in my posession. Please be honest and truthful when replying because we want people to realize what gains can be accomplished with whatever equipment being used. Anyone care to see dyno figures in a full look email me at: [email protected].

[quest]

no need to see dyno sheets... sounds about rightYour turbo musta really started to come alive at ~18psiQuestion; is that a stage I turbine wheel ? 0.63 hsg ? what comp wheel ? Did MIC do it ?

If you check out SR combos, they run pretty much the same on the CALotsa dyno proven combos on the uk forum, to choose from / verify hp

On my 1st CA, I'm gonna run a "hot t28" from a DSM vendor... already dyno'd ~340 wheel hp & tq @17psi on SR. Don't expect much less

[boost_boy]

Quote »Question; is that a stage I turbine wheel ? 0.63 hsg ? what comp wheel ? Did MIC do it ?[/quote] It was a stage 1 turbine wheel, .63 back housing and .60 A/R and yes MIC did do it! Sounds like you're going to be using a souped T2 series turbo with big wheels. Ought to go nice! What have you done to the motor? And where are you located in the dirty south? I'm in Northwest Miami-Dade...........

[quest]

How do ever you find traction in that lightweight sentra. lolseems like there's quite a few more ponies left in that car

JG t3/to4b uses a trick(&cheap) wheel... claims 375whp @17psi on mazda BP 1.8, using a 0.48 exhaust housing. Seems like a good CA turbo also

I'm not from there but know my way around the miami-lauderdale pretty good. Don't frequent much like I used to. I'll shoot you an email just before my next visit.... maybe you'll be up and running by then. I'm familiar with BYP, prolink, etc. M.I.C. did my last 3 turbos.

On this CA; t28 hybrid / oe det ecu / safc / z32 afm / dsm 450cc / 1st gen dsm oe bypass valve / 2.5" exhaust / 2 rx7 TII cores welded together (seen 'em on some very fast cars, so I'm sure it won't slow me down), front mounted, s13 / 2.125 in & 2.24out piping... should run deep 12s

I'm looking for some sorta nissan datalogger / knock monitoring gadget, like the DSM use. OE system runs too flawless to give up.

2nd CA;I'll make a short runner manifold to bottom mount 1st gen mitsu turbos.I'll run a 16g, then a 20G. I wanna tryout a $300 piggyback that does fuel and timing

[paul_s13]

Boostboy,

Not bad results buy you seem down on torque a bit, I got 315bhp and 282flbs at 16psi with a Ford Sierra Cosworth T3.

That is with my custom chip for larger injectors.

16psi run

I haven'thad a run with my new turbo and manifold fitted.

[boost_boy]

Quote »How do ever you find traction in that lightweight sentra. lol[/quote] Sometimes you don't, just keep the engine turning to 3rd gear and let the top end take ove (if you have the balls). If you know the characteristics of the car and it's power band, you will know when to shift to prevent the tires from spinning crazily. I see you're into experimenting as well. I tried a T2/T3 hybrid on my girl's car and it performed beautifully. If you had ever seen the video of me racing the S2000, that's the turbo that was being used. Quote »Not bad results buy you seem down on torque a bit, I got 315bhp and 282flbs at 16psi with a Ford Sierra Cosworth T3.[/quote] Paul, I'm not one to make excuses, but each and every dyno run showed a nasty hiccup at about 6400rpm which is where peak torque is produced and it turned out to be that the magnets on the crank pulley are sitting in the pulley too deep and not even height, so when the pulley flexes one of the trigger magnets misses a beat. Also, the stock manifold with welded flange had a crack at the T3 flange that could not be corrected unless the manifold was removed and we were in a rush to do this dyno thing to see just what these little engines can do. My girl's next car will be using a more efficient turbo with the addition of the HKS camshafts and custom manifold, so the #'s should improve if not significantly. As for my engine, well, I'm going for the gusto with it. Wind the turbo up to 30psi and see how the engine holds up. Should get some nice #'s in that ballpark. 315bhp at 16psi and 282lb/ft of torque is a good accomplishment in itself and would be more than enough to run some of the big boys off the street or at least make them sweat a little. At 15psi, I can honestly say I had the pleasure of making Z06/C5 vettes wonder as well getting a nearly 2 car top end lead on a Ferarri before I was cut off by a Ford Aspire and lost control and kissed a pole (*Another lesson learned*).

[quest]

keep in mind, dynos read differently accross the street.... let alone accross the pond.

paul_s13,I take it Bhp is the measurement at the wheels ? I see some UK guys calculating, and listing their flywheel hp, next to their mods. Its pretty standard nowadays to use wheel readings (in us).Did you run the ca16 inlet cam ? any difference ? adjustable gear ?

boost_boyare you gonna run 30psi with in the same rpm powerband ~under 8k... or cam it & run higher revs. I take it, anyone building a hi rpm CA has a proven recipee to follow, huh.... rather than risk disasterI got 2 SDS neighbours driven crazy by those damn magnets! lolLately, one realized that his crank pulley is actually (arcing from magnetic field, I guess) fusing itself onto the crank snout. Broke 2 pullers and eventually the first pulley, tryin' to remove it. Same thing on the second one. You could slip 'em on/off freehand before.Ever hear of this ?I suggested he hollar at sds

give thanks for survival in the accident...ouch!did your girl actually drive that beast ? I loan my '92 se-r to my girl and she wouldn't give it back. I had to steal it from work. lol

[boost_boy]

Quote »are you gonna run 30psi with in the same rpm powerband ~under 8k... or cam it & run higher revs. I take it, anyone building a hi rpm CA has a proven recipee to follow, huh.... rather than risk disaster[/quote] No, it will be done using everyone # on the tachometer. Cams are highlift "JUN" pieces at 272 degree with a 10.5mm lift (intake) and the matching exhaust cam with the same spec. I have adjustable cam gears, solid lifters, JUN valve springs, meticulously ported and polished, 3- angle valve job, NISMO 1.2mm headgasket and a bottom end that's well fortified for high revvin adventures.Quote »I got 2 SDS neighbours driven crazy by those damn magnets! lol[/quote] Speaking of magnets, I've just drilled out the old magnets from my girl's pulley and getting ready to insert new ones (No fun). Those magnets can and will do you in if not careful. I have not a clue as to why their pulley is seizing up like that. the best thing to do to prevent that from happening is to sand the inner bore of the pulley good to get better clearance and semi-loose fitting. The pulley on the left has the magnets installed a few hours ago. The pulley on the right has the magnets stacked on top of each at about 11 o'clock. When I post this, I'm going to install them.

[drumma022]

Hey Dee.... seems by the response, I will be your sole contender this summer! I still have yet to see the dyno, since this d@mn burning oil problem keeps plagueing me. By the time I actually get it solved, I will have the tomei valve springs, and a bigger turbo. hehehe. When I do get some results on the turbo... I will make them known all around. Well, by now you should know my car from head to toe since I post everything on this board.

Peace Out!

[paul_s13]

I just want to bring this thread back to the top, does anyone know of any sites that explain the US measurement of power, I have heard of a 20% difference between US and UK/Europe/Australia power measurements, if this is true I'm getting 343bhp @ the wheels working on a 10% transmission loss (estimated by looking though a few power runs I've had done)

I just want to get it all clear in my head

[quest]

There was a good "dyno" thread on freshalloy ~7weeks ago, but dunno how much good that would do. On the same car, dynos can read differently accross the street.... let alone over the pond.Type of chasis dyno, atmosphere, fuel type, etc.. all affect output.There are so many SR & CA combinations, that you could pretty much tell, from the turbo used at what boost, the power it makes.Quarter mile times (car weight known) will usually back that figure up.

[paul_s13]

Anyone else have any views on these power differences?