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-   -   Bad news after dyno (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/bad-news-after-dyno-684092/)

RabNastyRx 08-29-07 06:37 PM

Bad news after dyno
 
Went to the dyno this evening and got 277rwhp and 228trq the tuner isn't that great with the rx's this is what we noticed

no boost until 4500 both accuators are closed at least we can tell that one is the only turbo that working is the secondary oneor both are spooling at once I...D...K... and you see 10 psi with a 12 psi spike tacing out at 7500 all vaccum lines look good maybe i need to trace every thing down and now I'm hearing a metal against metal noisebehind the y-piping and turbos well in that general direction this is still a learning experience to me plese help a lowly newb lol

this is what has been done to the car

99 spec turbo upgrades
Street port, 3mm seals, new housings and rotors from rotary perfomance
Simplification 8-piece block off kit
Bonez dp
Bonez High flow converter
GReddy SP cat-back
GReddy Airinx intake
Apexi PFC and commander
Magnecor 10mm wires
NGK #plugs
Sx-6 fuel regulator
850x4 injectors
RP comp fuel pump
Pulsation damper
Fuel Filter
GReddy turbo timer
GReddy smic
IC pipping
Efini Y-pipe
RP power pulley
SS oil lines
Aluminum AST
Fluidyne radiator and silicone hoses
Water pump, thermostat, high pressure radiator cap
Centerforce clutch, resurfaced fly wheel

any suggestions would be greatly appreciated

cptpain 08-29-07 06:49 PM

go somewhere else for your FD

grimple1 08-29-07 06:51 PM

that's a lot of mods for 277. I would suggest taking it to a rotary specialist.

SLOASFK 08-29-07 06:53 PM

KDR is probably the closest rotary tuning facility that has a dyno, for you. Dave is a whiz with tuning too. you should be seeing a good bit more power, and definately seeing boost before 4500RPMs.

RTS3GEN 08-29-07 10:22 PM

If you get no boost til 4500rpm check your precontrol actuator rod end. IT sounds like the C clip that holds the rod on the precontrol door has come off and the rod has come off the precontrol door, thus eliminating boost under 4500rpm.
Art

M104-AMG 08-29-07 10:31 PM


Originally Posted by RTS3GEN (Post 7285577)
If you get no boost til 4500rpm check your precontrol actuator rod end. IT sounds like the C clip that holds the rod on the precontrol door has come off and the rod has come off the precontrol door, thus eliminating boost under 4500rpm.
Art

Yep, I carry a spare C-clip just for that reason. Too bad you have to remove a heat-shield to see for sure.

:-) neil

RabNastyRx 08-29-07 11:08 PM

Found out the noise problem after stopping and checking everything a few quick revs noticed that it was originating close to where the bell housing is after a closer examination I noticed that the FRIGGIN BOLTS were coming out WTF!!! But after just putting a whole fresh set in it stopped. I'll get to the boost prob tomorrow morning thanks guys for you all really help out when someone is in a pinch.

WaLieN 08-30-07 05:21 AM

Yes, do keep us updated on your boost issue.

For the most part, it can simply be a loose hose here or there. But, it gets a lot worse if it isn't something simple like that.

http://www.autosportracetech.com/RX-...leshooting.htm

Narfle 08-30-07 06:01 AM


Originally Posted by grimple1 (Post 7284839)
that's a lot of mods for 277. I would suggest taking it to a rotary specialist.

Youre approaching the problem incorrectly. 277whp is plenty for 10psi on the stock turbos. The modifications are great but its the boost that makes the numbers. Consider that a stock fd will make anywhere from 210-230whp on the dyno.

RabNastyRx 08-31-07 12:25 PM

Well we got boost back the vacuum lines were crossed up and we noticed we had no pressure chamber for stored boost so we used some honda parts to take care of the job for now just a temporary fix to get by till we can go to RotorSports Racing in Kannapolis about 2 hours away from where we're located so hopefully we'll see a substantial increase in power and response after Bryan gets a hold of it. I'll keep you guys updated and if you guys can think of anything else it would be great. Thanks, James

RabNastyRx 09-01-07 11:11 PM

Well I called Bryan up today and unfortunately he's pretty backed up (13 FD's) so I've call him back up Tuesday for further details on how to tackle this issue, but I'll keep you guys posted if you'd like.

spandy 09-02-07 01:56 AM

How much HP would his setup make at say....13psi?

Reason I ask is because my setup is going to be very similiar to that one.

Narfle 09-02-07 03:40 AM


Originally Posted by spandy (Post 7295266)
How much HP would his setup make at say....13psi?

Somewhat better than 300whp, Probably 320-320 with a good tune. Plenty to get a stock fd around.

MR_Rick 09-02-07 11:08 AM

With that set up, he should be looking at over 350 whp

Kento 09-02-07 12:06 PM


Originally Posted by hondasr4kids (Post 7295699)
With that set up, he should be looking at over 350 whp

At only 10 psi? That's a negative, ghostrider...

As Barban pointed out, on stock (or even '99-spec) turbos, you're not going to achieve much top-end improvement staying at 10 psi.

XxMerlinxX 09-02-07 12:45 PM


Originally Posted by Kento (Post 7295779)
At only 10 psi? That's a negative, ghostrider...

As Barban pointed out, on stock (or even '99-spec) turbos, you're not going to achieve much top-end improvement staying at 10 psi.

He was responding to the question, "What would it make at 13psi." I'd still say 350 is a little hopeful, probably more around the 320 area.

Kento 09-02-07 01:03 PM


Originally Posted by XxMerlinxX (Post 7295855)
He was responding to the question, "What would it make at 13psi." I'd still say 350 is a little hopeful, probably more around the 320 area.

Whoops...nevermind.:dunce:

RabNastyRx 09-16-07 12:32 PM

PSHT!!! Forget going to Rotor Sport, I'm going to let Ray do his thing up at PF, it sucks that thats not going to happen until around.....Friggin October, but its well worth the wait in the long run. . .I hope.

MR_Rick 09-16-07 12:43 PM

I made 336 whp on pretty much the same set up at 14-15 psi with stock ports and stock turbos with 93 octane.

2003330i 09-16-07 02:14 PM

i am going to to get my car tuned and i have pretty much everything that this car has. I wanted to do 11psi for low boost and maybe a high boost setting on race gas if possibl. Will this work and what numbers should i be expecting with high boost??How how can i go for brand new 99 spec turbos?

MR_Rick 09-16-07 02:36 PM

I won't recommend pushing the stocker anything higher that 13-14 psi if you plan on keeping them for a while. Just get the BNR's.

RabNastyRx 09-17-07 10:32 AM

Well I look at it this way, if I get up ther and they give me the go ahead then I'll keep the car and add on future investments down the road. BUT if I get bad news i'll either upgrade to single or get rid of the car and a 07 suby sti, good car for a college student in med school, warranty won't let me spend money and thats a good thing. . .for now ;-).

2003330i 09-17-07 05:59 PM

well if your interested in selling your car i am in the market so let me know how much and send me some photo's :)

RabNastyRx 09-17-07 10:13 PM

Yeah man no prob just give me your e-mail and i'll send you what I got.

RabNastyRx 11-05-07 08:21 PM

Well it's less than a week now before the big day. Is there anything that I can expect from Ray at PF so I'm not thrown off guard. I have talked to him a right good amount and he seems to be a genuinely intuitive and friendly guy. I guess I'm just nervous lmfao. I figured I'd give you guys an update on that.


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