Dustin's UltraMarine FR-S (Engine Blew - LS3 Time)

[Jaden]

Originally Posted by DustinS

I don't ever expect to see it out of their set-up either. Especially not with the supercharger in the way. I suspect they have a lot to learn in the Twin World, They seem more attuned to V8 stuff, and some of the comments have me concerned at even that.

They'd be pushing it to get 750-800 out of the fa20 on boost, then a 200 shot might get them there, maybe that's what they're considering?

Jaden

[spitfire481]

Originally Posted by Jaden

Even 666 is pretty insane when you think about it..

that's over 300hp per litre...lol...

Jaden

its pretty nuts lol. im geared towards drag racing so lag doesn't concern me much. its definitely laggy, but when it hits, it hits hard. realistically 750whp would be a solid end goal for me. i think i can hit that with 35 ish psi, but we will see. for highway pulls, motec rolling launch makes the lag a non-issue haha

[spitfire481]

Originally Posted by Jaden

They'd be pushing it to get 750-800 out of the fa20 on boost, then a 200 shot might get them there, maybe that's what they're considering?

Jaden

do you think the blower would become a restriction once you get past a certain amount of volume/flow from a turbo that large? like a bottle neck holding it back?

[Jaden]

Originally Posted by spitfire481

its pretty nuts lol. im geared towards drag racing so lag doesn't concern me much. its definitely laggy, but when it hits, it hits hard. realistically 750whp would be a solid end goal for me. i think i can hit that with 35 ish psi, but we will see. for highway pulls, motec rolling launch makes the lag a non-issue haha

That's the beauty of a compound boost setup. You can use those big laggy turbos but still have the low end power and torque, you just sacrifice some top end power.

Actually I hate saying that because really you aren't sacrificing top end power. You just don't have the top end power that the same sized turbo used alone will net you. IOW, you have to use a larger turbo to get the same top end power.

Jaden

[DustinS]

Originally Posted by spitfire481

its pretty nuts lol. im geared towards drag racing so lag doesn't concern me much. its definitely laggy, but when it hits, it hits hard. realistically 750whp would be a solid end goal for me. i think i can hit that with 35 ish psi, but we will see. for highway pulls, motec rolling launch makes the lag a non-issue haha

Or I ditch the Supercharger and put that money towards Motec and shoot for 500s on a GTX3076 with a solid ECU that will support much more later on.

Edit: I would assume the bottleneck would be not being able to turn the pressure from the turbo up due to the compounding. The turbo needs to flow enough air at around 10-15psi for your total power numbers.

[Jaden]

Originally Posted by spitfire481

do you think the blower would become a restriction once you get past a certain amount of volume/flow from a turbo that large? like a bottle neck holding it back?

The only problem you can get is blow by because the seals can't handle the excess pressure.

So you can end up with lower overall pressure in the cylinder and you reduce the duty life of the seals on the S/C.

Having a slightly larger s/c can reduce the blow by that you can get with a smaller s/c.

however, in a compound setup flow and restriction is all about the lead in booster.

Air flow is all about the device pulling air from the atmosphere, the s/c only takes what air it gets and compresses it at the p/r it's set to. Not necessarily the s/c, whatever the second compressing device is.

In a compound turbo setup, you'll often see a relatively small turbo as the secondary device because it spools much faster and all it has to do for the higher boost is compress the incoming air charge at whatever p/r you need from it(i.e. you don't have to worry at all about what it flows), but it's infinitely more complex to control than a turbo feeding into a PD S/C.

Jaden

[DustinS]

From the looks of it, I would have to almost completely swap out my current turbo kit. Which got pricey when I started looking, that was counting in the fact I would do my best to do all the welding.

Edit: The Company I was talking to is suggesting a Borg Warner Twin Scroll with the SPS 335 Blower.

[DustinS]

Last weekend this happened and forgot to post it:


I also received my Downpipe parts in. Someone posted a concerning picture about the exhaust side of the turbo, might not work. I really hope it fits up though.







Image Posted of Exhaust Housing:


There will also be a pretty big change happening to the car over the next few weeks. Kind of excited, yet hesitant at the same time.

[DustinS]

Well. I made the switch to ECUtek today (well I ordered it today). I have outgrown the OFT for the most part. Instead of upgrading to OFT Flex-Fuel Kit and having to switch to ECUtek when I upgrade the turbo, I figured it was easier to just switch now.

Moto-East Ecutek Tune
Moto-East Flex Fuel
DW300 Pump
ID1000s
Grimm Speed Boost Control

The Wait is going to kill me.

[DustinS]

Went for a good drive last night heading to a friends house. At ~208F Oil Pressure was staying at 50psi from 4k RPM on up and would start to drop every so slightly when getting close to 6k. I Did my best to keep it under 5k from there on out, which wasn't near as fun.

I also double checked with Moto-East to make sure everything was in stock as I meant to do that yesterday before I ordered. They re-assured me that everything was in stock, and it would go out tomorrow. A little bit of a bummer as I was hoping to have it by Friday (even paid extra for three day select) and have the weekend to install the injectors and pump. Such is life. I can deal with 280whp for a little longer.

[DustinS]

Well it seems my package is out for delivery. Update when I run home for lunch.


ECUtek by Dustin[Smith], on Flickr

[DustinS]

Interesting turn of event. Package #2 was shipped UPS Ground. So Paid for UPS 3-Day select. Package #1 Arrives USPS Priority 3-Day, Package #2 UPS Ground. Glad packages are here. Hoping to install the pump today possibly. Pictures to come.

Well. Seems there is a third package. The one with the Flex-Fuel. Should hopefully be here tomorrow. I still have to get spacers for the ID1000s as I figured they would come with the injectors (which they don't). Need 8mm spacers with longer bolts. Spencer Fabrications sells some, but they are not available right now.

[DustinS]

Fuel Pump installed last night. I was expecting it to be a lot worst with how people were talking about it. It was a piece of cake compared to my Saab. Everything seems to be running great. Need to run and get some spacers for the Injectors. Anyone know if they need to be metal to ground the fuel rail? or is a high temp plastic spacer okay?





I contacted Moto-East about the Flex-Fuel Kit that seems to have been missing in the mail. Few hours later I get a tracking update that it had been received by the USPS. Seems it may have fell off the cart or was forgotten. Although a bummer, I have worked in shipping and know it happens. Happy to report the Flex-Fuel kit is getting regular updates from USPS and should be here Saturday.

[spitfire481]

I have been using half inch nylon spacers for well over a year. no issues

Originally Posted by DustinS

Fuel Pump installed last night. I was expecting it to be a lot worst with how people were talking about it. It was a piece of cake compared to my Saab. Everything seems to be running great. Need to run and get some spacers for the Injectors. Anyone know if they need to be metal to ground the fuel rail? or is a high temp plastic spacer okay?