Recently dynoed my 93 KA-T

[Willfastbackse]

Dynoed my 93 KA-T a week ago.Results were 280whp and 262wtqThis was done at 9.5psi.Not too shabby huh?This is only with a street tuned S-AFC II that is struggling to control 500cc injectors.Oh and this was done with the stock MAF (which should be completely maxed out) and the stock clutch (which is toast).Ordered a bad *** clutch kit a few days ago so the fun can really begin.Plan to get a Z32 MAF and up the boost to 12lbs. Should be able to make around 310whp at that boost level.

[Drift Machine]

Damn nice, that gives me something to strive for next summer when I hopefully swap in some 550s.

[98s14inaz]

I forgot if you mentioned it but is that on a stock block? If so nice numbers bro.

[Willfastbackse]

Drift machine: As long as you have something to properly control them, look foward to big power and lots of fun. Don't expect to control them with only an AFC.

98S14: Thanks, and, Yes, this is on the stock block.

[BadMojo]

Nice! That must be a kick in the ***. What kind of clutch are you getting?

Also, besides the stock MAF, SAFC-II and 500cc injectors, what kind of setup are you running?

[98s14inaz]

Drift machine: As long as you have something to properly control them, look foward to big power and lots of fun. Don't expect to control them with only an AFC.

98S14: Thanks, and, Yes, this is on the stock block.

Wow. I have to get mine in. No more excuses ;-)

[SloS13]

damn dude. thats pretty impressive!

[t70/240]

Congadulations! Email me so we can hook up. [email protected]

[Willfastbackse]

BAdMojo: I ordered a clutch from clutch specialties. They make custom clutch kits. Just tell them what u want and they'll build it for you. I ordered a full face street disc and a dual diaphram pressure plate. That kit is capable of holding 450 ft lbs of torque. Perfectly streetable, slipable, and capable of taking a beating.

As for my set-up:

1. New 60 trim .89 T4 turbine/.60 T04B compressor Turbocharger 2. New SS autochrome tubular equal-length Stainless steel manifold3. Engine Management Unit (S-AFC II) 4. New Delphi 500cc injectors5. New P-Fab Top Feed Fuel Rail 6. New Mishimoto 24X12X3 Huge FM Intercooler 7. Custom 2.5" and 3" mandrel bent U bends (FMIC piping, downpipe, and straight pipe) 7a. 3" flex pipe for exhaust 8. New Walbro 255lph fuel pump 9. New Turbo XS RFL Blow Off Valve 10. MSD injector connectors/clips 11. New Oil feed and return lines 12. New Adjustable fuel pressure regulator 13. New Blitz DTT Turbo timer/Boost gauge 14. New SS autochrome 35mm external wastegate 8psi spring 15. Trunk Battery relocation kit 16. Intake cone filter and adapter 17. Oil fittings, fuel fittings, silicone couplers and reducers, clamps, exhaust flanges and reducer, etc 18. Autometer carbon fiber electric oil pressure gauge 19. Autometer Air/fuel gauge

Modified by Willfastbackse at 8:28 PM 9/25/2004
Modified by Willfastbackse at 8:30 PM 9/25/2004

[BadMojo]

I know we've discussed this quite a bit, but what are your first impressions of the SS Autochrome mani?

Also, how's the car drive with that turbo? A lot of lag?

[Willfastbackse]

I love the mani. It is one of the reasons I got those nice numbers. Great design, great flow, great positioning of the turbo, and nice little bling factor to add. It is a really big contributing factor that helps me spool that big T4. I also have some great accompanying mods including 3" piping from the turbo back and a large front mount intercooler. Flow is so important.

When I tell people the size of my turbo or when they see it, they typically say, damn its too big. Well apparently not! I love it. It is no T3 that is gonna give you boost at 3000rpm but I like it that way. The thing about big turbos is that they flow so much better than the smaller ones do and you ultimately make more power. You give some, you take some. Its a tradeoff.

I am able to drive around town as if the car was completely stock. No hint of boost until I mash on the pedal. The driveability is great. The car responds just as well as it did when it was N/A.

I wouldnt call the late boost bad lag because in my opinion, bad lag is when you mash on the pedal out of boost and the car kinda bogs or dies and then picks up. With my set-up, if I mash on the pedal at say 3000rpm, the car accelerates like it did when it was stock (which wasnt awfully quick) until it reaches 4K when it the turbo begins to contribute and pull (about and instant 50whp gain) and then once it hits 4500rpm, that when the real fun begins and the car rips to redline (140whp gain) with dumped wastegate fury .

With my setup, gas milage isnt much worse than b4 when cruising. Its a different story when boosting though . If you didnt catch it before, the turbo begins to spool at 4k, really gets moving at 4500, and hits full boost between 5500 and 6k.

Sure it comes on late but when it hits, it hits HARD!! I love the rush. By the way, a remedy to those that dont like laggy turbos is called a downshift

[bruinbear714]

Dynoed my 93 KA-T a week ago.Results were 280whp and 262wtqThis was done at 9.5psi.Not too shabby huh?This is only with a street tuned S-AFC II that is struggling to control 500cc injectors.Oh and this was done with the stock MAF (which should be completely maxed out) and the stock clutch (which is toast).Ordered a bad *** clutch kit a few days ago so the fun can really begin.Plan to get a Z32 MAF and up the boost to 12lbs. Should be able to make around 310whp at that boost level.

Is it just me or do those numbers seem DANGEROUSLY HIGH? I mean, they're awesome numbers but if the S13 stock MAF is anything like the S14, it'll max out around 7-8psi ish, which is where mine is sitting right now, 7.35psi to be exact. At full boost in 4th around 5600rpm my MAF hits ~5V.

And what are you doing for timing? The engine's not going to last long with just an SAFC + 550cc with no timing control.

[Willfastbackse]

Well, I understand what you mean about the MAF maxing out but think about it--> If the stock MAF is capable of 270-280whp as its limit, who do you know that is making that kind of power at 7psi? Obviously it can withstand more boost.

About your other concern, I retarded my timing a bit but believe me, I am aware of the dangerous situation i'm in with my current fuel and timming set-up. I am anxiously waiting for Scott to be done with those KA ecu programs so I can send my ecu to get rom tuned.

The downside to that is that I wish I had enough money to uprade to 720cc injectors and Z32 MAF. I spent a good amount of money on this set-up and then more when actually doing the install. I'm really low on cash and just finished ordering a high performance clutch kit which robbed me of all that I have left.

Will suck to have to pay now for a 500cc program and another couple of hundred again to get the ecu reprogramed when I uprade injectors.

Oh well

[MaxType 240]

Check if your MAF is really maxing out - In the SACFII, go to the sensor check menu and it will display real-time MAF voltage values. At WOT, if you're 5+ volts, then it's maxed.

What's up w/ spending so much for a clutch? ACT Stage 1s are good to go for our power levels, even when I bump up to 350-360hp/trq...

Don't abuse the engine until you get your timing squared away.

Jesse

[Willfastbackse]

-I'll check my MAF voltage asap.-What makes you assume I spent a ridiculous amount on the clutch? I never mentioned a figure. Just to let you know, I spent $350 which is normal.-Lastly, I have been taking it easy on the motor and plan to continue doing so until I get that Rom tuned Ecu. Thanks for the advice though.

[Jookmasta]

hey will, is this "scott" located down south here in miami? also any update with the rom tune?

[Willfastbackse]

Unfortunately Scott is not located here in Miami. He still isnt ready to do KA tunes for the masses but he is very close.

[Jookmasta]

also, who did the install? im looking for some help with my install or maybe someone more experienced to do it?

[Willfastbackse]

I did the entire install. It involved A LOT of customization so it was a Big pain in the *** and took a while ( 1week and 1/2 and 3 more weeks dealing with problems and working out bugs) but now its much easier. After doing mine, I helped a friend do his in 2 days.If you want some advice, I'm always there to help ya. If you want some actual physical help, we might be able to work something out.Just give me a call 305-301-6902.
Modified by Willfastbackse at 9:07 PM 9/29/2004

[MarkEmark]

Dynoed my 93 KA-T a week ago.Results were 280whp and 262wtqThis was done at 9.5psi.Not too shabby huh?This is only with a street tuned S-AFC II that is struggling to control 500cc injectors.Oh and this was done with the stock MAF (which should be completely maxed out) and the stock clutch (which is toast).Ordered a bad *** clutch kit a few days ago so the fun can really begin.Plan to get a Z32 MAF and up the boost to 12lbs. Should be able to make around 310whp at that boost level.

Very nice numbers....at what RPM is max hp/tq achieved?

I can't belive you're not maxing out that MAF...you must have some freak of an MAF.

My MAF maxes out at 9 psi past 5000 rpm in every gear, and that's from a comparatively TINY T3 super 60....

Damn, i really need to get mine dynoed soon--maybe sometime this fall when the weather's nice and cool

[MikeMurphy]

"street tuned"? So you have no idea of your AFRs?

[Willfastbackse]

Mark: It wasnt till I got home that I realized that the shop printed my dyno sheet with figures based on speed rather than rpm. Oh well . Anywho, based on the chart, my power continues to rise all the way to when they let off. My peak torque came much sooner though. So I made max hp at about 6700rpm and max torque seemingly at about 4500rpm.

As far as my MAF goes, it's weird. I checked my MAF voltage the other night and at about 5700rpm in 3rd gear, it was at 4.8 volts. I make full boost at about 6K but I didnt get to look at the figure at that rpm because I had to look back up at the road. I'll take it out soon with a friend and have him focus on it while I focus on driving.

Next time I dyno, I'll remember to make sure they give me a chart based on rpm increments.

Mike: I dont have a wideband so, no, I dont know my exact A/F ratio but I use all my resources to ensure that i'm safe. #1, I am running 500cc injectors which are too large for the AFC to properly control therefore at maximum fuel reduction (-50%) I should still be supplying enough fuel to the motor in low throttle situations. I have my low throttle fuel map set at -40 at idle and -45% across the board from there on. That is safe wouldnt you say?#2, I adjusted my high fuel map after reading the the A/F reading on the dyno. #3, I tune and judge my A/F by my spark plugs. I have gone through about 4 sets since turboing the car. #4, I have an Autometer air/fuel gauge which I would never advise anyone to fully confide in becuase of its inacuracy. But it is better than nothing and it does help.#5, My car backfires which is another sign of running rich. In my opinion running rich is always a good thing when unsure of your exact a/f figures.

If you take all of those factors into mind, I am doing all that I can short of having a wideband to ensure safe A/F.
Modified by Willfastbackse at 1:46 AM 10/3/2004

[Jookmasta]

hey will expect a call today

[Jookmasta]

hey will, i know u were busy when i called ya over the weekend, but drop me a line at [email protected] asap. Wanna see if we can work out something for the install.

[Structure240sx]

i was jsut lookign at the SSautochrom mani on ebay yesterday. its only like $250 shipped which is awesome. how has it been holding up so far? are your running an on-center turbine turbo? thats what mine is i jsut dont want it to be too far off and my downpipe mot line up

[Willfastbackse]

Yes, its a great deal. I bought mine for $350 in the Zilvia group buy. Its holding up great. I will be doing the urathane motor mount mod this week to help preserve the manifold. My engine dances around like crazy thereby putting extra stress on the manifold. Especially with the heavy *** turbo sitting on top of it and banging on the hood when it shakes. Yes, I have an on-center turbine and my 3" downpipe is a tight fit between the steering column and the transmission but it fits.

I installed the clutch this past weekend along with a new transmission. Yesterday, I installed the urathane reinforced stock transmission mount and today I installed a new slave cylinder because mine went out. Man, that clutch feels awesome. I havent pushed it yet cause I have to break it in, but that pedal is 10 times stiffer than stock (gonna swell my left calf). Cant wait to finish breaking it in and see what it is really about (only 450 miles left with no boost )

[Structure240sx]

are you using any flex piping in your exhuast/downpipe?

[Willfastbackse]

Yes, I'm using a 3" flex pipe on my lower downpipe. Apperently, you didnt see it but it's on my list of parts.

[Structure240sx]

sorry i should have read more carefully