Very nice to see so may problem free miles on your setup.

Any chances on building that motor?

 

There is always a chance, I may up the boost later this summer to see how it goes. I know the turbo should be able to support 500whp easy, I would have to upgrade the intercooler, but that is about it.

And yes, driving the car and having nothing to worry about is great, and makes it that much more enjoyable.

 

Don't blow your internals. Hate to see all that good work go to waste if you booted it too high.

I skimmed through the pages, but why did you decide on your turbo placement/location? (less piping, quicker spool I suppose?)

 

I put my turbo there because I didn't want it under the hood, like all the other ST kits. It's too tight, so things rattle, you have to move all your A/C stuff and IMO it's just a huge PITA. The engine bay temperatures go up as well, and there are too many things too close to the exhaust pipes.

With the turbo under the car it is still close enough to the engine so I don't have any lag issues. I think it is the same amount of piping as any other ST kit that is mounted in the stock intake box location. I get full boost at
3100rpm, so it's perfect.

 

Well, I finaly hit the dyno today. Here are the results. It looks like I am only getting 3.8-4psi of boost. This is according to the Haltech log, so I will have to look into this. The w/g spring is 5.88psi, so clearly there is a discrepency. My boost gauge reads about 5psi, but they are not all that accurate anyway.

It looksl like I need to work on my timing. There is a 1 deg. difference between my lowest HP and my highest, and the graph is somewhat choppy. My A/F is about 10.8-11.2 through out the entire rpm range, so tha is fine.

I will also be getting a boost controller and bumping the boost to about 8psi. I am now happy with how things are working and feel comfortable upping the boost. Once tuned I will post more numbers.

 

looks like you can turn up the boost ALOT. did you ever dyno the car stock?

 

Yeah I will turn it up untill I get about 370whp. Whatever that ends up being I guess.

I did not dyno the car stock, but most rev-up motors seem to dyno about 250whp. So it's actually a decent gain for 4psi of boost I guess.

 

I cant see the dyno here at work what were the power numbers???

 

Very nice starting place for 4.5psi.

I would get a 7psi spring for the wg and hold the boost at around 8-10 psi with a boost controller.

On a side note, if you are ever in Lexington Ky you need to let Hal @ Injected spend about 45 minutes with that Haltech and you would be amazed what he can do with timing and cam phasing on the rev-ups.

 

Not even 4.5psi, more like 4.

I know what you mean about IP and Hal. It's just that I don't plan on driving 2000 miles shouth any time soon. A few of us wated to fly him up here for a day or two, but I don't think it's worth his time unless he stays for a week.

 

grats on the build my friend. there are too few of us willing to try and build our own stuff. My friend and I hand built my entire twin turbo kit from manifolds right down to custom IC. we even designed and built our own RFS. I havent made a thread on this forum. (mainly because I get tired of assclowns piping in and talkin smack)

 

Heh I have thought about building log manfiolds of weld els. Wouldn't be that hard i would think. I would really like to see what my car would do with a master power t70.

 

yeah thats pretty much what we did is build log manifolds. It was a little harder to do trying to get gt28rs's to fit with some acceptable clearance.

 

not bad cant wait to see it at 8psi!

 

awesome job

thanks for sharing

 

You are welcome.


Smal update as well I guess. Everything is still working flawlesly. Recenlty I went to a local G/Z meet and took the car on a 100 mile trip. Did a crap load of highway pulls (4th and 5th gear) no problems at all.

I am looking at making a few kits this winter..there is plenty of interest locally.

 

i'm slightly interested. My vortech is awsome on power but i'd love to have some low end torque. I'd want a monster turbo setup though. I'm just nervous about all the extra stuff involved in turbos. I guess i'll figure it out and i can hit ya up if i decide next winter!

 

Here's your car at the Nissan meet in Red Deer. Wheels look great!

 

^^^^Thanks.

I just finished rolling the fenders and installing the coilovers last night. It looks much better now.

 

you bump that boost yet?