BriGuyMax

iTrader: (4)

Finally finished the install of my Cosworth IM and my alkycontrol meth kit today.

Went out and did some street "tuning" with the UTEC. My AFRs stayed nice and fat. 11.0-11.3 so I didn't have to add any fuel (AFRs before the manifold were mid 10s).

Boost dropped from 14psi on spring pressure to 12.5psi on spring pressure. I'm assuming this is because of the dramatic increase in flow.

Car now feels nice and strong above 5500rpm whereas it fell on it's face BAD after 5500 before. I'll be putting it on the dyno and turn on the meth sometime in the next couple weeks so I will hopefully confirm what my butt is telling me.

So far I'm very happy with the Cosworth. It REALLY cleans up the engine bay and looks dead sexy. Now I can actually see my coil packs so plug changes will be a piece of cake.

Jay'Z

iTrader: (118)

Took you long enough!!

BriGuyMax

iTrader: (4)

added

TheFarmer

iTrader: (19)

Looks NICE!

350Z400rwhp

iTrader: (4)

Very Nice! Can't wait to see what the gains are.

Jay'Z

iTrader: (118)

Too bad u cant do a back to back dyno.. How long did it take to install the Cosworth alone?

BriGuyMax

iTrader: (4)

I'll be sure to overlay it with my dyno from last fall, the cosworth will be the only change.

Not really sure how long it took. I really took my time with it and carefully RTV'd the endcaps to make sure they don't leak with the boost I'll be throwing at it. I was doing the meth kit at the same time, but if I had to guess, I probably could have done the Cosworth alone in well under 2 hours.

Jay'Z

iTrader: (118)

Ok, thanks.... I hope the RTV works for ya.... I never got RTV to work on my Kinetix w/TT and got rid of it..

Cass007

iTrader: (34)

Very nice Bri, nice to see a clean engine bay as well. In to see what the gains are

Alberto

iTrader: (14)

Ive been contemplating doing this, but havent seen enough results IMO. I look forward to your results Brian. Did you get the same Alky kit that was already pieced together that a few of us have?

rcdash

iTrader: (18)

Looks great - nice install. I see you've got the manifold sucking through your catch can to your PCV. I had the same but with a check valve in there to back up the PCV, which supposedly can leak under boost. I was sucking up too much oil though. I followed others (Jetpilot, Alberto, Joe Kenefic) and just routed both valve covers to the turbo inlet via the catch can. Did you notice your old plenum was oily?

BriGuyMax

iTrader: (4)

Joe Kenefic sold me his kit. (he's running E85 now). Based on my near 2psi boost drop with the Cosworth, I'd say it's flowing MUCH better. We'll see what it does on the dyno.

BriGuyMax

iTrader: (4)

I've been trying to figure out the best routing for my catch can for a while now. I hardly had any oil in the plenum, but my driver's side valve cover that was vented straight to the turbo inlet (and drilled larger) was pushing a good amount of oil into my turbo and subsequently the intercooler. I think I will try and route it like you guys have it. My only issue is locating a fitting to replace the PCV that has a larger barb fitting on it for bigger hoses to match the catch can and driver's side vent. Any ideas?

Alberto

iTrader: (14)

But the comparison wont be 100% due to the issue you had with your car kinda falling off up top right? Or did you fix that issue and then redyno it?

BriGuyMax

iTrader: (4)

I vastly improved the top end issue with a KB boost a spark. I picked up something retarded like 90whp @ 6500rpm. It still peaked @ 5500rpm, but I think that was due to my small turbos and completely stock top end. Cosworth should change that.

Alberto

iTrader: (14)

Ahh ok...how high do you rev? Still stock cams?

str8dum1

iTrader: (11)

keep an eye on the caps leaking once you start spraying meth. Doesnt seem like Cosworth has that fixed yet as people are still having problems with that. Pretty sure Sylvan lake is currently.

lgear080

iTrader: (21)

pretty amazing engine bay. very well kept. in for some dyno.

rcdash

iTrader: (18)

It sounds like boost was getting into the crankcase through the PCV and was being blown out the driver's side vent.

I drilled out the PCV, use a short section of 3/8" fuel injection hose (SAE30R9 quality), and then have a 3/8 to 5/8" adapter I bought online somewhere (high temp plastic). I use 5/8" heater hose for most of the plumbing.

BriGuyMax

iTrader: (4)

I can rev to 7200 (that's what I currently have my rev limit set at) I only have been taking it to 6500 since the power still fell off. Stock cams.