Is FP Green worth if for me?

[Mistaspakles]

I'm debating whether or not to get rid of my Green for something smaller. I'm debating this because my car is a street car and I never go over 18psi. Am I wasting the potential of my Green by not going over 18psi? On pump gas and 18psi, I was only able to make 310whp. Would I have better results with a different turbo at 18psi and pump? If so, which should be my turbo of choice?



K&N, DSM-Performance intake pipe, FP Green, Big Greddy FMIC, UIP/Greddy Type-S, 60mm TB Elbow, 1G TB, 1G Intake Mani, 1G Head, ARP Head Studs, 1G Rods, ARP Rod Bolts, Polyurethane Motor Mounts, Magencor 8.5mm wires, Denso 660 injectors, Web Cams 546/547, Quaife LSD, RPS Stage 2 Clutch, Ported Exh mani, AHP O2 w/Tial 40mm WG dump to atm, RRE DP, Apexi N1 Exhaust, Walbro 255LPH, Apexi S-AFC, MBC, B&M Short Shifter, Greddy EGT/Boost Gauge

 

[jdmawd]

Originally posted by Mistaspakles
I'm debating whether or not to get rid of my Green for something smaller. I'm debating this because my car is a street car and I never go over 18psi. Am I wasting the potential of my Green by not going over 18psi? On pump gas and 18psi, I was only able to make 310whp. Would I have better results with a different turbo at 18psi and pump? If so, which should be my turbo of choice?



K&N, DSM-Performance intake pipe, FP Green, Big Greddy FMIC, UIP/Greddy Type-S, 60mm TB Elbow, 1G TB, 1G Intake Mani, 1G Head, ARP Head Studs, 1G Rods, ARP Rod Bolts, Polyurethane Motor Mounts, Magencor 8.5mm wires, Denso 660 injectors, Web Cams 546/547, Quaife LSD, RPS Stage 2 Clutch, Ported Exh mani, AHP O2 w/Tial 40mm WG dump to atm, RRE DP, Apexi N1 Exhaust, Walbro 255LPH, Apexi S-AFC, MBC, B&M Short Shifter, Greddy EGT/Boost Gauge

why not just turn the boost up?

 

[Mistaspakles]

Is it safe to go over 18psi on pump gas?

 

[jdmawd]

Originally posted by Mistaspakles
Is it safe to go over 18psi on pump gas?

i have run as much as 23 psi on pump

 

[Mistaspakles]

I'd rather not take that chance. I just want to know which turbo would be best for me if since I do not want to run anymore than 20psi on pump.

 

[DSMu4ia]

Take it to Elite Autosports and have Shane figure it out.

There is most likely something slightly wrong.

 

[Mistaspakles]

I dyno'ed it at Elite, and Shane was tuning it. He told me he was surprised at the low numer HP output. He just shrugged his shouler's and said "hmm, that was dissapointing". I have done the intake leak test and everything seemed fine. Don't know whatelse to check.

 

[DSMu4ia]

There's alot more to just tuning it. He's a competent tuner, so that's why something else is missing.

Call him and ask him if he could give it a once over.

You have web cams, they might need degree'd.

There's a bunch of other little things as well.

 

[Violater101]

As long as the car is happy and knocking and egt's are fine, I don't see what you can't run more than 18psi on pump gas. I've ran as much as 1.4 bar on mine on pump gas. Do you have any idea how much air you flowing (lbs/min) at 18 psi?

 

[Antilles]

I'm one of the guys you raced at the Import vs Domestic shootout down in Iowa. If you are serious about going smaller, I will trade you my small 16G and some cash for that green.

But, I really do think there is something wrong with the car, or possibly even the turbo. maybe borrow someones turbo, slap it on, and make a dyno pull. If it makes power its a problem with your green. if not, then you got issues. i dont know what it could be though, those numbers sorta blow

 

[GSX4LIFE]

Have you done the simple things? Plugs, wires, fuel filter? it may sound stupid, but you would be surprised how much power something as little as a worn plug will suck. Also how is your compression?

 

[Mistaspakles]

As for the little stuff, I'll take care of that in the coming weeks. I haven't tested my compression so maybe I'll check that out. I'm pretty sure that's not it though.

 

[Violater101]

Originally posted by Antilles
I'm one of the guys you raced at the Import vs Domestic shootout down in Iowa. If you are serious about going smaller, I will trade you my small 16G and some cash for that green.

But, I really do think there is something wrong with the car, or possibly even the turbo. maybe borrow someones turbo, slap it on, and make a dyno pull. If it makes power its a problem with your green. if not, then you got issues. i dont know what it could be though, those numbers sorta blow

What do guys think a Green should be making on 18psi and pump gas anyhow? Not everyone is Dre and making 430hp on 22psi(not sure what he dyno'd at) and pump gas. I'm sure his #'s would come up considerably if he turned up the boost to around 20-21psi. Of course i'm speculating, but I would think he would be making around 340ish. To me, thats not all that shabby. Those #'s would be even better on some race gas. There are alot of unknown variables such as if he was getting any knock, max timing, a/r ratio (I think most tune for around 11:1 or so on pump) etc. We don't have any of this info. I would stick with your Green personally. Like I said, I would be interested in knowing how much air your actually flowing. Good Luck.

 

[Mistaspakles]

Originally posted by Violater101


Like I said, I would be interested in knowing how much air your actually flowing.

How would I go about finding out that?

 

[Violater101]

My bad, I thought you might know via your logging software. I get my #'s from the DSMlink. I'm flowing around 40lbs/min @20psi/7000 rpms's. I know i have some boost leaks(tb shaft seals), but havn't gotten around to replacing them yet. I'm somewhat limited due to my stock 2g head and intake mani. The green's max I believe is 50lbs/min. I would think to be reaching that, one would need a ported head, sm intake, and 272 or equiv intake cam. I could be wrong, but I don't see my car in its current state flowing that much air. Sorry, didn't mean to get off topic. Do you know what a/f ratio he tuned for on the dyno and how much timing you were getting and also knock retard?

Check your pm's

 

[nano]

Green is about one of the best performing turbos on pump gas, infact there really isn't much that would do any better. It runs very efficient at 20psi if not more efficient then at 18psi. Turn up the boost to 21 -22psi. You should be fine as long as you're tuned well. I'd say it should make about 340whp if not a bit more.

 

[Mistaspakles]

I think my A/F was 11.5:1. I didn't have a pocket logger or anything like that to see what kind of timing I was pulling. I'm currently looking for a 95 Eprom so I can get the DSMLink to see if it will help out. Oh well.

 

[DSMJim]

Your unhappy with 310whp at 18psi? Thats pretty good if you ask me. As long as you can get 93 or 94 octane gas then you will be just fine at 20psi of boost. You should pick up another 20-25hp with the extra 2 psi. Honestly as everybody else has said the Green (a 50trim T3/t4) is an amazing pump gas turbo and it sounds like your well tuned and making good HP vs. boost.

Not sure what you thought you would get.. 350 wheel at 18psi? Havn't seen many of those...

 

[Violater101]

Originally posted by DSMJim
Your unhappy with 310whp at 18psi? Thats pretty good if you ask me. As long as you can get 93 or 94 octane gas then you will be just fine at 20psi of boost. You should pick up another 20-25hp with the extra 2 psi. Honestly as everybody else has said the Green (a 50trim T3/t4) is an amazing pump gas turbo and it sounds like your well tuned and making good HP vs. boost.

Not sure what you thought you would get.. 350 wheel at 18psi? Havn't seen many of those...

Exactly what I was saying

 

[larryd]

@ 18psi I would guestimate around 335-345whp or somewhere around there. Atleast thats where I plan on being. I want to do 375 on pump @ 20-21psi on my 50trim.

Regardless I wouldnt be upset making 310whp @ 18psi

 

[DSMu4ia]

I made 308whp on 19psi on a 16g and 94octane.

A whole lot less mods too.

Seeing how many people are doing right up around 400whp on 20-ish PSI and a Green, I wouldn't have been that happy myself.

Don't settle for ANYTHING under 340-350whp with your setup.

Remember the LITTLE things count.

I'm not talking about the basics either, I'm talking IC pipe alignment, intake temperature, general outside temperature, exhaust flange welding, etc. There's a ton more as well, I could talk for hours about the little things. But if you can't think, then I can't type.

FWIW: I've seen 60-1's making over 360whp at 16-17psi. A green should make more than that at same boost level.

 

[GSX4LIFE]

"Seeing how many people are doing right up around 400whp on 20-ish PSI and a Green, I wouldn't have been that happy myself.:



IM sorry, but please explaine HOW many people are doing this. Do you have list of people in front of you? Or are you just basing this off of info you have heard? I dont think there are more than a handfull of people, making even close to 400whp, on pump, at 20psi from the Green. And iM sure that all of those cars are running full management, with super tuning. Im not trying to be an AZZ to you. I just dont like when people make trivial comments without any thing to back up thier statements.

 

[DSMu4ia]

Sorry I do live under a rock and just read forums all day.

I could name 7 people off the top of my head making between 390-430whp on their pump gas levels. I said 20psi-ish, which is between 19-22psi.

I also know quite a few people (say another 5-6) doing over 116mph traps in FULL weight cars. They've never dyno'd. But that's real close to 400whp.

Couple 1g guys, couple 2g guys. 4-5 are standalone. Rest are VPC/E-manage/DSMlink.

I'm definately not one to make trivial statements.

I never said in my last post I expected the poster to make 400whp. I said, seeing how many people ARE making 400whp, I wouldn't be happy with 310whp.

I never said it was easy to make power either, but if you write about the big guys doing 400whp on pump, then you have to do EVERY little thing. There is WAY more to it than most of you guys think to make 400whp. WAY WAY WAY more.

Back on topic.

310whp is low.

 

[GSX4LIFE]

Thank you for clarifying. Much better explanation of power making on your second post. Oh, and BTW, are any of these other big power Green guys on this board? Just curious.

 

[Violater101]

I still say your fine. Perhaps there is another 10-20 in tuning and another 30-40 when you up the boost. That would yield anywhere from an addition 40 to 60 hp from what your currently at. Realizing this is a bunch of what if scenario's. It's not that easy to make mad power just because you got a bigger turbo. There are alot more variables which come into play imo.