Fellas,

We gots some new number ladies and gentlemen. Many thanks to Mark and the guys at SGP Racing, you guys rock.

Well, here it is:

 

Very cool man! You make me want to build my motor up!

 

Hey Kudos,

I have a question, did you notice any power loss or any kind of loss? Did you buy low compression pistons? I am in the process of getting my engine installed now and I want to know what pro's and cons I can expect. Can anyone here answer that ? please....

HOLLA!!

 

what changes did you make from your last dyno?

 

JIC Y-Pipe, and a bad a%& tune dude. Mark tells me the A/F is steady at 11.6 with plenty of fuel left to go further.

 

I'm wondering why the torque curve drops off after 5200 RPM. It seems like the cams would help that situation and allow the engine to breath better at higher RPM.

Also.. maybe this is the combo of the cams and lower compression, but.. don't alot of the cars with stock internals spool up in the ~3000 RPM range? This dyno looks like the engine isn't hitting its stride until around 4000+ RPM.

still.. amazing power. very impressive.

 

my car has a built engine and it spools slower now that i lowered the compression

 

I've never driven a turbo car, but it looks like it would be hard to control the throttle with your torque curve going near vertical in the 4000rpm range. NA cars have exponential increase in torque too but it usually plateaus at a low enough rpm that up or down shifts won't have you fall into that exponential range. Plus, NA cars don't make near as much power. Just seems like you would have to be VERY careful coming out of a corner, depending on what RPM you're at.

Maybe this is your drag racing only boost setting?

--
Jeff

 

Insane top end power... I am a little surprised at how low the low-end is... didn't think the lag would be that big...

Gurgen

 

The lag everybody's talking about is just load simulated by the dyno, it just needs to be reconfigured.

 

I hope you'll pardon a dumb question... Your avatar says that you live in Qatar but your car is in Houston. Is that correct? If so, aren't you getting pretty anxious to get it?

I ask because I'm looking into doing an engine rebuild and it seems like SGP has had your car for a LOOOONG time.

Again, forgive me if I'm confused.

--Steve

 

Holy crap that's awesome! Great numbers man!

 

I was thinking the same thing on the trq. On SGP's last dyno, I believe they used a dynojet and the trq was well over 300lbs at 3000rpm. This dyno graph using the dynapack looks totally different.

Personally, I like the dynojet. You are moving a known mass, and so there is really no calibration needed, other than ambient conditions..temp...air pressure...humidity...etc.

Also, dynopacks typically read higher than dynojets...so this is probably closer to 600whp on a dynojet.

Either way man...GREAT numbers. So when do you actually get your car back so you can DRIVE it.

 

How much slower?

 

If you have a 6MT , you will eventually need a better clutch to handle that extra power when you turn up the boost. You should consider a lighter Fylwheel, it will help offset what you lost in bottom end when lowering the CR. So indirectly it will spool faster.

 

OK, so with a built 8.5:1, when are you going to turn it up to 20 on pump? It should not have a problem with it. <shrug> EVO's can run 19~21 on their 50-state cars (91 Cali fuel) with 8.8:1.
GREAT numbers.
Any headwork? Oversized valves, etc.?

 

based on the dyno in this thread as well as a handful of others I found around the forum, I created a spreadsheet comparing various setups in a consolidated set of dyno graphs.

The thread is here:

https://my350z.com/forum/showthread....threadid=93603

 

I doubt the stock clutch will last more then a day! You have to test out all that new power ya know?

Also just subcribing to the thread. My friend is looking into doing a simular build but with the APS kit instead of Greddy and I just want to stay updated.

 

Same consideration here. Forged internals and APS (G rather than Z though). My biggest debate at the moment is CAMs to be or not , if so which one. Most likely JWT S1.

 

Well if your going to spend all this money you might as well go all out. The poster of this thread is running tomei cams and as far as I know they are more agressive then JWT but still compleatlly driveable. Mark at SPG also said they are fairly agressive when my friend called them.

MMMM nice loapy idle, the sound of a turbo, and the rush of 600 rwhp... I'll go and keep dreaming now.