dyno,d at 7 psi

[mean green s14]

first off i have a 97 auto with the following mods

nsport satge 1 turbo kit ur underdrive pully plugs , wires cold air intake apexi 3 in n1 exhuast no cat apexi safc

at 7psi i was only able to put down 185 whp and 194 ftlbs

on the dyno chart you can see the turbo spools up and it looks to me like the converter trys to lock up but cant hold the power and as soon as the turbo spools up the dyno chart becomes very irratic and falls off.

i think 185 whp is low for 7psi dont you guys?

[red240ne]

yes that's low. but you have an auto. do you have a dyno chart that you can post? what were your A/F ratios?

[MikeMurphy]

yeah thats pretty damn low. What gear was it in?

[:: orion ::]

What injectors, MAF, etc...

I see the AFC, but what's it there for...extra fuel tuning with an FMU, or for 370s...???

And 7psi, even through an auto, should be in the 225-230rwhp range.

- Brian

[TrunkMonkey]

on the dyno chart you can see the turbo spools up and it looks to me like the converter trys to lock up but cant hold the power and as soon as the turbo spools up the dyno chart becomes very irratic and falls off.

where's the chart ?

-demetrius

[mean green s14]

im using a begi 7:1 fmu with stock injectors and stock maf sensore the kit came with a t04b turbo and a 26x14x3 front mount. my a/f ratio was at a steady 11.5-12.1 ill post the chart as ssonas i can get it small enough to load.

[sxseguy]

My stock '98 Kouki made 93 whp at 5500 ft, so I don't think your dyno numbers are far off. Read the FSM and rig a switch so that you can manually lock the converter in 3rd gear and test that way. The converter will never lock up under dyno conditions. It was only meant to lock in 4th gear under steady throttle. The automatic just sucks up a bunch of power.

[TrunkMonkey]

The automatic just sucks up a bunch of power.

there's no way an automatic transmssion sucks that much power. we're talking about up to 50whp that's missing.

if you want to dyno in third gear, simply turn off the overdrive.

-demetrius

[mean green s14]

thats how we did it, third gear no overdrive.

my a/f ratio was right on,

it just didnt make any power. my freinds stock wrx walks all over me from a roll

[bruinbear714]

first off i have a 97 auto with the following mods

nsport satge 1 turbo kit ur underdrive pully plugs , wires cold air intake apexi 3 in n1 exhuast no cat apexi safc

at 7psi i was only able to put down 185 whp and 194 ftlbs

on the dyno chart you can see the turbo spools up and it looks to me like the converter trys to lock up but cant hold the power and as soon as the turbo spools up the dyno chart becomes very irratic and falls off.

i think 185 whp is low for 7psi dont you guys?

What'd you do for timing?

[GEO]

Jesus christ, yoi should be AT LEAST 220 RWHP, did you check compression or you got a LEAK somewhere?

[mean green s14]

compression tested at about 165-175 for all four cylenders. and i dont think i have a leak or my a/f ratio would be all messed up, pluss i think i would hear a leak. my timing is stock and i gapped my plugs at .28 , im baffled.

[Structure240sx]

i dont think that the to4b that comes with our nsport kit is all that great. i made about 270rwho off 13psi with all the light weight parts you can have. also you aid it becomes very irratic. you could have been detonating which may retard your timing too much

[mean green s14]

what should i run mty timing at, and what should i gap my plugs at?

[Structure240sx]

16 degrees btdc for timing. gap your plugs at about .035" maybe a lil bigger until it starts blowing out the spark

[mean green s14]

could i be loosing power becuase they are currently gapped at .028?

[:: orion ::]

Yes, but not 30rwhp...

You want the plugs gapped as wide as possible, as long as the spark doesn't blow out, or as long as you don't misfire.

I run .035 at 12psi with no problems...

I used to run stock gap (.044) up to 8psi, and never had spark issues.

- Brian

[MikeMurphy]

damn, 7psi on stock timing will destroy your motor very quickly. Get that fixed ASAP!!!

[huguetpj]

damn, 7psi on stock timing will destroy your motor very quickly. Get that fixed ASAP!!!

No it won't. But it is always best to be on the safe side.

[mean green s14]

can i just loosen the distributer and turn it away from the firewall?

[Structure240sx]

you should use a timing light when you do this so you know where you are at in timing. you also have to follow the correct procedure to set the timing.

engine at operating temp.unplug tpsset timingplug in tps

[mean green s14]

what did you gap your plugs at with your nsport kit, mine will only run right under boost if i run a .028 gap!

and dont you think 184 whp is low for the nsport kit?

wtf

[Structure240sx]

i ran them at .035 for 9 psi and also now for 13psi they are at .035. so im guessing i could open them up more at 9psi.

184 does sound pretty low. i made about 100 more in hp and tq with 6 more psi. i would try retarding base timing some and keep your afr in the mid 11's. you may have some detonation. also put on a new cap and rotor

did you port out the manifold before installing? mine seems like it would have had some nice restriction. this can also lower power. check out full-race's manifold test on freshalloy. they gaind over 40rwhp jsut by swtiching to their mani over a log style on a honda.

also you made the dyno pull in 3rd. im not sur eif it relates the same to an auto, but your will make more power in 4 gear with the 5spd than in 3rd. i think i made about 20hp more

[MarkEmark]

I don't understand why all of you guys are talking about the gaps in your spark plugs...it says right on my car that the engine came with platinum tipped plugs and should use platinum plugs and gapping them was unnecessary. Is it just because you guys switched to non-platinum?

[:: orion ::]

That's true, but under boost...sometimes you have to lower the gap to get it to spark.

But, anymore...people look at lowereing gap as a "mod" when turbocharging...it's not.

As I said above...you want the gap as wide as possible as long as it doesn't misfire.

Mine ran fine with stock gap at anywhere from ~4.35psi-9psi...and I closed the gap a little b/c I just turned it up to 12psi...did I have to? No...

But my new BKR7Es came gapped at .035, so I left it.

Anyway, people act like ANY boost will "blow out the spark"...not so.

It's different for each car, and needs to be tested. Start at stock gap, and it it doesn't misfire, then you're good.

If it does, then lower the gap a little at a time and see where it doesn't miss..then leave it.

- Brian

[MarkEmark]

Yeah I have the BKR7EIX's (iridium--probably the same as yours), and I left the gap alone. I'd like to add that the iridium plugs gave me about 10 whp and an insane top end. Just kidding, I couldn't tell the difference between them and the platinum + 4's i used to run. I've never had a problem with misfiring/detonation with my car thus far, so I just leave it be. If it ain't broke, don't fix it.

[mean green s14]

well basically im wondering if i have some sortof other prob becuase at 8 psi i cant run over about a .026 gap or it will missfire and run like crap under boost, im not a ricer looking for a free mod im just looking to get my car running properly.