Tuning my DR750s on Chrome

[futurevr4man]

I was considering editing that part out, but I didn't. I was just kind of kicking ideas around, but I agree with what you said. My point in my statement was more about a bearing having more force on a generalized area for longer, which I still think causes a lot of issues. When oiling issues occur its usually the rod bearings that go, when excessive force (usually caused by knock) happens... Usually the mains. And I know you know that, I'm just thinking out loud again. I could give a few examples of people on here that have killed engines at low rpm and no knock. People like to blame oiling issues, but its a much more complicated answer than that if you ask me. Bearing surface area, harmonics, etc come into play... Especially with a v6.

[jras312]

I'm not sure I have seen one 3.5 16G car running e85 and was ironed out.

Cant remember exactly what the numbers were when Ray sold his chameleon car and the customer wanted 16gs on his stroker, but I thought it made 750tq on e85.

[Chris@Rvengeperformance]

Cant remember exactly what the numbers were when Ray sold his chameleon car and the customer wanted 16gs on his stroker, but I thought it made 750tq on e85.

yeah that is the only one I've seen and it had some pretty amazing results. Looks like it started spooling hard around 3000 and was making peak torque near 4000.

[futurevr4man]

Jrink had a 3.5 16g car as well I believe. Made similar power as well with very fast spool

[fastfalcon94]

Have you considered DR700 turbos? Aren't they similiar to the dr750's they just spool a little slower/later?

[TurboSinceBirth]

Cant remember exactly what the numbers were when Ray sold his chameleon car and the customer wanted 16gs on his stroker, but I thought it made 750tq on e85.

The numbers are at the end of the video 665AWHP 748AWTQ I posted a few pages ago but here it is again. 3.5L, E16Gs, E85, and Ray's tune.

[familyMAN]

Ray said wastegates were blowing open and not holding much to redline. Better wastegates or shimmed may help up top but may not if comp wheel was simply out of flow.

Just for reference, Jesse made 688hp (can't remember tq) on race/meth on 6g74; Chris made 715 on e95, 3.0.

[Chris@Rvengeperformance]

well 750s it is. The TD05 kit sold, probably for the best for me.

[Chris@Rvengeperformance]

Have you considered DR700 turbos? Aren't they similiar to the dr750's they just spool a little slower/later?

Those may be a good fit, but the higher flowing turbine I have would be better.

Plus if I changed from these DR750s to ANYTHING else it would be a larger frame turbo of some sort. Given the engine build I can really not afford to do any worthwhile upgrades right now, such as a large DR kit and being honest I really am not going to need more than 600AWHP ever.

[Chris@Rvengeperformance]

Haven't been following the entire thread but if your worried about power down low, can't you:
A) Don't go WOT until higher RPM (I do this with 9Bs or I'll get knock at low RPM/high load). If you want to go fast, downshift. I'm sure you can pull a hill as you would in a normal car in a normal gear without killing the engine
B) Pull timing
C) Adjust your boost controller to give you less boost at low RPM

Either way, good luck! It must be hard having to put all this work into your new car/build!

Thank you for contributing, don't take what I have to respond negatively.

a)if I want to do this I may as well get "laggy" turbos.
b)yes, it is already in the worlds. I will be running significantly less timing than the base timing tune and will pay particular attention to knock voltage at low rpm. I'm probably going to also start my 3rd gear "pulls" for tuning purposes around 3500 until it is really close to avoid unnecessarily beating on the engine. In real life it isn't going to spend that much time wot at 3000 in 3rd.
c)This is possible, but kinda leads to A.

Going to play it carefully, but at some point I gotta have faith in ray's engine. Surely an engine running 1000AWHP at 6000 rpm is going to be at least as stressed as one making 500 torque at 3500.

I really have a feeling my mains were half smashed in the old motor before I started tuning it.