I made it to the dyno this morning (Tuning Technologies). We ended up being limited by the boost controller (22.8psi peak). To put this graph into perspective, I'll overlay what my car did with a 3076 kit and 264s (the 264s performed better than the Revolvers that I had installed initially). AFR on both are right at 11.1:1. I'm running 12* of timing at redline now. Notice the increased area under the torque curve.



Current mods:
FPGreen turbo, WORKS O2/3" DP, Resonated Test Pipe, 3" ID AVO Cat-back Exhaust, Blitz (Denso) 660cc Injectors, ACT Street Clutch Kit, AMS FMIC, Nesei LICP, SAMCO Couplers, T-Bolts, HKS EVC EZ II EBC, GM 3Bar MAP, AEM UEGO Wideband Gauge-type, Walbro 255, APS CAI, ARP Head Studs, IX BOV, Revolver Valvetrain, Helix Hollow 272's, Unorthodox Racing cam gears, HKS DLI-II, RB Rotors, Hawk HPS, StopTech Lines, CE28Ns, PS2s

 

Hmm the green turbo kick your 3076 set up in every single way. Good numbers!

 

I wonder if my EvoGreen numbers will be closer to Mr. Birdies or Pd1's when I get tuned @ TT. Only time will tell.

 

Some things to consider: Alfred suspected that if we weren't boost-limited (as indicated in the previous post), that one more pound would have put me in the 365/370hp range. Also, the IXs, from what I've seen, tend to make just a bit more power with like mods compared to the VIIIs.

 

I love all that early usable torque this turbo is making. The results have been very promising thus far.

 

They make less tq than a IX unit.

 

What else will you be changing on your modlist when you do the turbo? Will you be staying with the stock cams?

 

I will be adding GSC 272's @ +1/-1
I will be adding the EvoGreen
I will be swappping the AMS 680's (Rochester type injectors) for Precision 780's.
I will be adding a 65mm TB
I will be adding a Nisei UICP
I think I'll be changing the plugs to BPR8ES to combat knock.

That's it, besides having the manifold/hotside/02 housing Swain coated to combat heat.


Also, understood about the 9's making more power and the boost issue limiting Pd1's numbers.

 

I will be adding a FPGreen to my evo in the next couple weeks with no other power mods changing. Should be a interesting 100% change of turbo comparison. Straight up swap

 

Nice changes. I especially like the injector choice, good cams, +1/-1 should help spool and midrange torque. Try the non-protruding tipped BR8ES's as they are a tad less preignition prone than the BPR's(especially with the +1/-1). Are you going with the Works TB? It should be a Beast coming up the corkscrew from Santa Monica canyon up Entrada toward the traffic light at 7th St. and San Vicente Blvd.

 

I went with the 65mm from Aby here in SoCal (WOT on the forums). It's already installed

I had heard that it was better to get the spark as close as possible to the cylinder, hence the protuding plugs. Why isn't this the case? Thanks.

 

atlvalet,

What did you notice after installing the throttle body? Did you do this without porting the intake manifold? If so, did you notice any performance improvements?

Thanks,

Tony

 

Indeed. When I tried this setting on my 272s and FPGreen, my peak spool rpm went from 3800rpm to 3500rpm. However, I prefer the top end and idle quality of -4/-1.

 

Please take this to PMs or another thread. This one has already had enough off-topic discussion (most of which has been removed).

 

[quote=atlvalet;3989912]I had heard that it was better to get the spark as close as possible to the cylinder, hence the protuding plugs. Why isn't this the case? Thanks.[/quote]

The +2/0 and +1/-1, advanced cam timing settings tend to be more conducive to preignition than 0/0 or the retarded settings. This is due to the fact that the resulting valve timing tends to produce higher dynamic compression. This will be especially noticeable on throttle tipin at 3500 RPM and even worse on the 91 octane pump gasoline. If Alfred Dynotunes your setup on 91 octane he`ll probably have to pull a couple tenths of a degree of ignition advance from 3500 RPM on up from the off the shelf 2003-2004 XEDE timing table, if you want to be able to run over 19 PSI on 91 octane.