How much HP at the wheels for 7psi intercooled, dyno charts?!?

[MarkEmark]

Before you flame me, I've looked around plenty for dyno charts for 7psi intercooled boost on a stock KA24DE and have found none...

Well, summer's coming up, and I'm currently having a custom turbo kit for my car fabricated (nothing fancy, garret T3 internally wastegated) and will be running 7 psi with a 25" x 6" x 3" front mount spearco intercooler (endtank to endtank, core is about 18"), and was wondering what kinda power I could be looking to see to let me fantasize as I count down the weeks.... Nsport quotes 240 hp at the wheels for their kit, and mine is pretty similar except for their turbocharger and the size of the intercooler and there's isn't much larger....So I figure there's would be about 10 hp more maybe.

Anyway, my brother just sold his saab 900s and will be getting a Jetta 1.8t and manual boost controller/water injection, which he thinks will give him 200 hp at the crank. Basically, I want to put him in his place with some dyno charts as to the HP increase at the wheels and crank for a 7 psi intercooled setup on an internally stock KA24DE.

Other modifications I have are mild-street ground cams which I've heard from the grinder will be fine for 7 psi, and a very high performance tanabe exhaust, 2.3" with very little air-restriction (it's a rather straight pipe from the cat back) and a 3" downpipe I believe.

Can anyone post up some factual evidence? Or if you have a 7 psi turbocharged/intercooled setup, could you let me know who/what you're beating/running at?

Thanks!:ylsuper

[float_6969]

Trust NSports #'s, they make good stuff and they've been doing it for a while. Also, what are you going to use to manage the fuel?

[MarkEmark]

It's just gonna be a vortech FMU 8:1 or 12:1 I forget which one and an upgraded fuel pump...i always run 93 octane as well.

[nlzmo400r]

expect a 24o whp ball park,, if u look in this months SCC, they have a turbo set up for the KA with the To4 (i think), and they say they dyno'd it and got 24o whp

[MarkEmark]

240 hp seems a bit high to me actually, considering Nsport's is designed and has the turbo modified specifically for the KA and has a huge intercooler and is only making that...mine's a custom manifold/IC piping etc, so I was thinking 230 whp...but lets say mine right now for power has 155 whp...that's about an 80 hp increase for 7 psi...will it really increase that much? any dyno charts?

[kevdog240]

SCC has a KA-T in the new mag!!!!! nobody told me! man i was at the store today and looked at the damn import tuner about a NA 240. why the hell didnt i look at SCC! is it a good article? i want to see this

[SeVa-S13]

I'm pretty sure they're using an SR seeing as it IS project Silvia. And they referred to the turbo being used as a "potato turbo".....WTF?

[Structure240sx]

i guy over on freshalloy just installed nsports kit on a 95 240 and dynoed 243 rwhp. he said it was running a lil lean around 13.1-13.4 i forget. im sending my money in tomorrow for my nsport kit for my 95 hopefully will have it in 2-3 weeks they're on back order. this doesnt really have a purpose im just excited

[float_6969]

A friend of mine recently had one installed on his 98 S14. He had some ****ty shop install it initially so he kinda got screwed there, but I think they got everything worked out and it's supposed to be running pretty well now. I haven't seen it myself yet, but he says it's pretty nice. I also think he said he was putting down about 260whp, but that could be a dyno difference. I also don't know what else he has done to it. Good luck with the install structure, keep us updated on how it goes!

[machinehead]

I'm pretty sure they're using an SR seeing as it IS project Silvia. And they referred to the turbo being used as a "potato turbo".....WTF?

no, its a ka

[machinehead]

how much is your custom kit costing you? how much is a turbo manifold for a ka?

[nlzmo400r]

SCCs project car is a 24o with redtop in it, now making 274hp, but they have a huge section on TURBOS, and in there they have i think 3 different setups for the KA (tuboing it), and most of them are making 24owhp

[MarkEmark]

but can anyone produce viable evidence via dyno charts? there's gotta be some...i mean out of FMAX, XS, Nsport, and a host of other custom kits, I'm sure SOMEONE was curious and dynoed their car.

My kit is going to be $1375 w/o an intercooler but with the intercooler piping, and I'm planning on spending about $350 for a new spearco intercooler that are always on ebay, then I figure another $150 for the oil cooler and $75 for the downpipe and $100 for the catalytic converter I need to finally get...So when's all said and done, it will be about $2050 for 7 psi of reliable turbocharged and intercooled boost...should be well worth it.

[keepingthe240]

Those parts coming from a junk yard????

[kevdog240]

My kit is going to be $1375

uhh yea. how are you doing it for that cheap? i cant see any way of getting a solid kit for less then 2G. did you factor in a clutch too cause you are going to need that to hold down the power? man i cant wait to get the flywheel and clutch on there.

[MarkEmark]

Read carefully...."So when's all said and done, it will be about $2050 for 7 psi of reliable turbocharged and intercooled boost...should be well worth it."$2050, not $1375--no, i didn't factor in the clutch, but that is going to be replaced soon for regular maintenance anyway.The turbo is a used T3, and the manifold, piping, etc is all custom made--no one says you need to dump $3800 into a store-fabricated off-the-shelf unit to make power.

[MarkEmark]

so stock everything except 6psi and you've romped on a modified V8 as well as a stock cobra? That sounds like you've got at least 240whp, but at only 6 psi with stock exhaust, cams, etc?

I have a high flow tanabe exhaust, will have a good high flowing downpipe/high flow cat, fairly large (25x3x6) spearco intercooler, better cams etc...So I figure 7 psi will net me at least 220 whp...especially if yours with 6psi is romping on V8's.

Were the guys with 201whp and 209whp, respectively, running an intercooler/high flow exhaust/cat?

9 pounds man, have fun with that! I can't wait till summer!

[keepingthe240]

Read carefully...."So when's all said and done, it will be about $2050 for 7 psi of reliable turbocharged and intercooled boost...should be well worth it."$2050, not $1375--no, i didn't factor in the clutch, but that is going to be replaced soon for regular maintenance anyway.The turbo is a used T3, and the manifold, piping, etc is all custom made--no one says you need to dump $3800 into a store-fabricated off-the-shelf unit to make power.

Where can i buy this $2k kit. A new turbo should cost $200 more. Why in the world do they charge so much for those kits??? It should cost more to buy the parts piece by piece.

[nlzmo400r]

well the 24owhp numbers i got were claimed from teh makers of the turbo kits in this months issue of SCC, so go look there, im not promising these numbers, just what i saw from a respectable source

[AceInhole]

Here's Orion's car from FA

His setup:Garret T3/T4, 57 trim, .63 A/R (2.75" inlet, 2" outlet) RevHard Manifold (Use the JGS and save a headache...) JGS oil line feed and drain kits 370cc injectors teamed with a hacked MAF (blow-thru setup) TiAL wastegate, .3bar spring (4.35psi...for now) No intercooler...2.25" intake piping. 1st Gen. DSM BOV, slightly crushed.

.4 bar ( 5.8psi):4th gear = 224rwhp and 229rwtq

I have just about the same setup with a side mount intercooler and a smaller turbo. Was going to dyno on Sunday but going to Autocross instead.FWIW: my 0 - 60 is 5.3 seconds @ 7psi. Not really sure what that's supposed to mean, though.

Realistically: just because someone is making x amount of power at y amount of boost, doesn't mean you'll do the same. Someone else might have an amazingly well kept driveline (less driveline loss) and better than stock compression #'s, so if your drivetrain has been beat on, and your oil hasn't exactly been changed every 2k - 3k miles... you shouldn't expect to have the same power figures as the first car with a similar setup. (and FWIW: my compression numbers are similar to Orion's:#1 = 180psi #2 = 179psi #3 = 181psi #4 = 182psi).Probably should also be noted that my setup ran for about under $1k.

[slipsr20]

holly crap AceInhole!!!!!!!!!!!!!!!!!!for $1k you got "4 bar ( 5.8psi):4th gear = 224rwhp and 229rwtq"????that kick ***!!!! is that all you got? any internals?I know one thing for sure is that that is the most bang for the bucks!$$$$$$got to get that set up but will be doing sr or nsport ??? I got the ross pistons from nsport but will need the rods? slipsr20

[98TURBOKA]

I just have to through in my 2 cents worth-- I have a 1998 240sx se with the N-sport stage 1 turbo kit, a lightened flywheel, magnacore plug wires, and performance clutch. With stock enternals and I'm pushing 262rwhp. I have the dyno specs but can't get them to attach. If you want to see them just get ahold of me.

[float_6969]

Hey Kory, if you've got the pics of the dyno charts, I can host them for you. just email them to me and I'll put a link up here of them.

[AceInhole]

holly crap AceInhole!!!!!!!!!!!!!!!!!!for $1k you got "4 bar ( 5.8psi):4th gear = 224rwhp and 229rwtq"????that kick ***!!!! is that all you got? any internals?I know one thing for sure is that that is the most bang for the bucks!$$$$$$got to get that set up but will be doing sr or nsport ??? I got the ross pistons from nsport but will need the rods? slipsr20

That's not my setup. That's Orion's. I have the same setup with the addition of an intercooler, and my turbo is considerably smaller.

Edit: Actually, now that I remember: Orion has a JWT ECU set for an NA tune, and I think he has S13 cams as well. (I have the same cams, just haven't installed them).

[MarkEmark]

225rwhp at 5.8 psi makes me very happy about the power I'll get at 7 psi with my setup...I'm hoping for at LEAST 225 rwhp, shooting for 230...especially since I'll have a fairly large intercoolers, a nice grind of cams, and a very good exhaust/high flow cats...possibly electric fans. I think that's reasonable, my engine's in pretty sound mechanical condition, I'll have to do a compression test to see exactly where it's at.

0-60 in 5.3 seconds at 7 psi with a DSM side mount intercooler also makes me very happy! That's fast enough for me to take WRX's, 350Z's, S2000's, etc etc...four tenths of a second faster and you'll be running with brand new Porsche 911's

[float_6969]

here is the link to the pic of his dyno. Kory's Dyno

[98TURBOKA]

Thanks for posting that Ryan!!

[creophus]

Dont know where you guys are getting these 240rwhp numbers from. I Personally know of 3 ka-t guys here that have ran and dynoed at 7 pounds and only put between 201-209 rwhp. I only know of one guy that has dynoed 251 rwhp but he is at 10 pounds with bolt-ons. One of those 3 kits was an Nsport and the other 2 were custom made to the nsport to be cheaper out of pocket. I myself just put on the Fmax kit and i basically walked a bolt-on modified V-8 and have beated a STOCK Cobra and im ONLY 6 pounds... I am still on stock internals, stock flywheel, stock pulleys, Stock catback WITH the catalytic converter and mechanical fan. I cant wait until my lightened flywheel, ASP pulley, ACT clutch, N1 single catback, 3 inch test pipe, and removal of the mechanical fan, and 91 exhaust cams.... YUMMY..!!! And to think that my 98 only has 30k miles on it... This was the best investment i ever made...!!!And i have almost INSTANT spool..!!!!I personally dont care for the nsport kit or XS-Eng kits cause they use a cheaper BOV, wastegate and they use that POS FMU... The Fmax kit comes with better components and injectors with the JWT computer. The Turbo is side mounted vs the normal top mount but im happy..!!!

Robert98 ka-t currently 6 pounds until monday..!!! 9 pounds baby.!!

So...you would recommend the FMAX stage 1 kit then? I have a 96 with 85K on it and I'd like about 250+ to the wheels.

[cdigity]

heres mine at 5 psiit actual hpi figured out the sae corrected #'s to be 226.14 hptorque just kept going up all the way till the throttle was let outhttp://www.cdigity.nissanpower.com/images/dyno1_(medium).jpg

[nlzmo400r]

i wonder how my QR would respond to 7 lbs of boost:naughty