JWT 700BB Engine Build Results
11-08-2012 | 09:25 AM
#41
Thread Starter
Joined: Oct 2005
Posts: 12,390
Likes: 101
From: Spring, TX
11-08-2012 | 10:58 AM
#42
You're use to reading those big *** turbos than. LOL The GT28's aren't that big. 16-18psi is full efficiency for them. Any more and you start overusing the turbo and lose power. Think with a higher compression and smaller cam they'd spool a bit quicker but I like how the power is almost N/A powerband. I think this will be a fun street car. Take ya for a ride and tell me you're not impressed. 
LOL 
LOL 
I might take you up on that offer if I ever attend a future Z meet up. You're a crazy SOB for running R888's on the street (and on HRE 19's no less)! :P
11-08-2012 | 12:23 PM
#43
11-08-2012 | 05:16 PM
#44
Thread Starter
Joined: Oct 2005
Posts: 12,390
Likes: 101
From: Spring, TX
11-08-2012 | 07:55 PM
#46
It doesn't loose much steam. From 5000 rpm at peak of 550hp it only drops to 520 at redline. That's not much drop for turbos that are maxed out. Tq always drops as it is inverse to RPM.
Nice work robert! You'll love the car. I'm not sure putting meth or anything else on it will be worth the money for its return. At that point you will have to start running drag slicks and all to keep traction so the fun factor starts to taper off.
11-08-2012 | 10:27 PM
#49
Thread Starter
Joined: Oct 2005
Posts: 12,390
Likes: 101
From: Spring, TX
Thanks Will! Hope you've been doing good!
Thanks Binder. Yeah I looked at the GT28's efficiency map and figured out 16-18psi was full efficiency. Why there is no reason to run more boost. I think with a bit higher compression and maybe a smaller cam the power would move left a little. But none-the-less this should be a fun car to drive on the street or track (road and drag).
Was tossed up with the meth kit. I'm gonna hold off though. Maybe in the far future due to Houston summer heat, but not right now. As far as DR tires I'm already running 305 Toyo R888 tires.
Thank Alberto. I'm looking forward to seeing how the Shell URT 100 helps.
It doesn't loose much steam. From 5000 rpm at peak of 550hp it only drops to 520 at redline. That's not much drop for turbos that are maxed out. Tq always drops as it is inverse to RPM.
Nice work robert! You'll love the car. I'm not sure putting meth or anything else on it will be worth the money for its return. At that point you will have to start running drag slicks and all to keep traction so the fun factor starts to taper off.
Nice work robert! You'll love the car. I'm not sure putting meth or anything else on it will be worth the money for its return. At that point you will have to start running drag slicks and all to keep traction so the fun factor starts to taper off.
Was tossed up with the meth kit. I'm gonna hold off though. Maybe in the far future due to Houston summer heat, but not right now. As far as DR tires I'm already running 305 Toyo R888 tires.
Thank Alberto. I'm looking forward to seeing how the Shell URT 100 helps.
11-09-2012 | 05:21 AM
#50
11-09-2012 | 06:10 AM
#51
Thread Starter
Joined: Oct 2005
Posts: 12,390
Likes: 101
From: Spring, TX
11-09-2012 | 07:13 AM
#52
Thanks Binder. Yeah I looked at the GT28's efficiency map and figured out 16-18psi was full efficiency. Why there is no reason to run more boost. I think with a bit higher compression and maybe a smaller cam the power would move left a little. But none-the-less this should be a fun car to drive on the street or track (road and drag).
Was tossed up with the meth kit. I'm gonna hold off though. Maybe in the far future due to Houston summer heat, but not right now. As far as DR tires I'm already running 305 Toyo R888 tires.
Thank Alberto. I'm looking forward to seeing how the Shell URT 100 helps.
Nice choice on tires. A great alignment will be the biggest issue. Get that neg camber down as far as possible. The furthest I could get mine was -1.2. I wanted to get it down under -1 but it started throwing my toe way off. With 650 the mickey thompson 305's still didn't hold very well on the street but it is what it is.
As for the higher octane and meth. If you do anything i would say get an injection kit and just run water injection. That won't require a re-tune and will make your power more consistent in the heat.
11-09-2012 | 07:24 AM
#53
Thread Starter
Joined: Oct 2005
Posts: 12,390
Likes: 101
From: Spring, TX
Nice choice on tires. A great alignment will be the biggest issue. Get that neg camber down as far as possible. The furthest I could get mine was -1.2. I wanted to get it down under -1 but it started throwing my toe way off. With 650 the mickey thompson 305's still didn't hold very well on the street but it is what it is.
As for the higher octane and meth. If you do anything i would say get an injection kit and just run water injection. That won't require a re-tune and will make your power more consistent in the heat.
As for the higher octane and meth. If you do anything i would say get an injection kit and just run water injection. That won't require a re-tune and will make your power more consistent in the heat.
We're doing the Shell URT100 for dyno numbers. Don't think I'll be running it that often. But who knows. I haven't research water injection for the VQ. Thanks for the tip!
11-09-2012 | 07:57 AM
#54
Thread Starter
Joined: Oct 2005
Posts: 12,390
Likes: 101
From: Spring, TX
Hey I stand corrected. Just talked to PowerFab and they are going to use Shell URT Advance for the race gas tune. Unsure if they will mix or not. Forgot to ask. 
11-09-2012 | 11:56 AM
#55
Thread Starter
Joined: Oct 2005
Posts: 12,390
Likes: 101
From: Spring, TX
)
11-09-2012 | 04:55 PM
#57
Thread Starter
Joined: Oct 2005
Posts: 12,390
Likes: 101
From: Spring, TX
