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F-Body Road Racing and Autocross Forums _ General Discussion _ Getting close to completion.

Posted by: WarShrike Mar 27 2017, 12:30 AM

Got the car on the mustang dyno and got the tune ironed out. The intake manifold/throttle body is now a restriction as we watched the manifold pressure drop more and more as the rpm increased on the runs.

Run before smoothing was 247 whp 268 tq, it's got a good bit of torque for a little V6. Up from 169 whp and 184 tq when it was mostly stock. Fuel pump died a few days after this, dodged a bullet there. Almost done with the E85 system. The engine did what a stock LS1 did on the same dyno. She's a cruel mistress.

https://www.youtube.com/watch?v=sqEeV_XYktY


Posted by: trackbird Mar 27 2017, 11:02 AM

That is an impressive little 6. I've enjoyed following this project as it's certainly something different. And the results have been far better than I expected.

Posted by: WarShrike Mar 27 2017, 05:37 PM

Thanks smile.gif

The local PCA Auto-x event was on the ropes, but it looks like it's going to make it back with a full schedule this year. I'm hoping to make it to mineral wells this summer for the CAM invitational as well.

Posted by: Steve91T Mar 28 2017, 02:21 PM

I'm impressed! I can't believe how good it sounds. How much less does it weigh?

Posted by: WarShrike Mar 28 2017, 09:00 PM

QUOTE (Steve91T @ Mar 28 2017, 09:21 AM) *
I'm impressed! I can't believe how good it sounds. How much less does it weigh?


Not sure as the engine might be 80lbs less than the LS1 and it's all behind the steering rack, have a tubular k-member and all that. Need to get it on the scales, our shop has that so I can go all Terry Fair on it biggrin.gif

Posted by: landstuhltaylor Mar 29 2017, 01:38 AM

QUOTE (WarShrike @ Mar 28 2017, 05:00 PM) *
go all Terry Fair on it biggrin.gif



Posted by: CrashTestDummy Mar 29 2017, 02:11 AM

Well, if you had actually gone Fair on it, ALL the parts you pulled off would have been weighed, as well as the parts you installed. So, you got some 'splainin' to do there. 2thumbs.gif

I mean, if you're gonna do it, do it Fair!!

Posted by: WarShrike Mar 29 2017, 04:10 AM

QUOTE (CrashTestDummy @ Mar 28 2017, 09:11 PM) *
Well, if you had actually gone Fair on it, ALL the parts you pulled off would have been weighed, as well as the parts you installed. So, you got some 'splainin' to do there. 2thumbs.gif

I mean, if you're gonna do it, do it Fair!!


rotf.gif

Yeah, guilty as charged. I do love the in depth stuff he does though, don't get me wrong. But yeah, gonna get it weighed, gonna see how things go on the koni/stranos with 275 BFG Rivals, gonna try and get some seat time at the local PCA events and maybe the CAM event at Mineral Wells. The car had good balance last time, but that was on an adj. phb and now I'm running a Watts link.

Posted by: Steve91T Mar 29 2017, 07:56 AM

Have you considered running a smaller, lighter wheel/tire? I think it'd be kinda cool to make that thing as light and fast as possible. With less hp and tq, it might be faster with less tire.

Posted by: CrashTestDummy Mar 29 2017, 01:06 PM

Indeed. Wheel weight is big, and I'd bet on something without 1000 HP would see notable performance gains with lighter wheels/tires. That, though, gets expensive.

Posted by: WarShrike Mar 29 2017, 03:25 PM

Yeah the 275s are where Strano said I'd be golden and the 315s might be a bit too much. I'll be running some 20lb wheels 18x10.5s as anything lighter would be pretty expensive and have to go custom.

Posted by: Steve91T Mar 29 2017, 03:57 PM

QUOTE (WarShrike @ Mar 29 2017, 11:25 AM) *
Yeah the 275s are where Strano said I'd be golden and the 315s might be a bit too much. I'll be running some 20lb wheels 18x10.5s as anything lighter would be pretty expensive and have to go custom.


Yeah it's hard to beat the size vs weight of those wheels. But I wonder what the difference in weight is once the tires are mounted between what you're going to run and something like an 18x8 with like a 255 wide tire. Might not be that much of a difference, really. Idk

I'm just trying to spend your money, really. Really cool project though. Can't wait to see more.

Posted by: 370camaro95 Mar 29 2017, 04:09 PM

definitely sounds pretty cool thumbup.gif
loved the rev limiter at the end

Posted by: WarShrike Mar 30 2017, 02:46 AM

QUOTE (Steve91T @ Mar 29 2017, 10:57 AM) *
I'm just trying to spend your money, really. Really cool project though. Can't wait to see more.


Haha yeah, I covet the GS1R's but not the price they come at. There are some things I'd like to do that would lighten the car but still retain streetability/livability. Speed glass rear insert, get rid of stock metal hood, etc.

QUOTE (370camaro95 @ Mar 29 2017, 11:09 AM) *
definitely sounds pretty cool thumbup.gif
loved the rev limiter at the end


Thanks, can't wait to get it out on track.

Posted by: 79T/A Mar 31 2017, 07:22 PM

QUOTE (WarShrike @ Mar 28 2017, 09:00 PM) *
so I can go all Terry Fair on it biggrin.gif


You're going to shove your head so far up your own ass it will never be seen again? Wouldn't recommend it.

Posted by: WarShrike Apr 6 2017, 10:40 AM

QUOTE (79T/A @ Mar 31 2017, 02:22 PM) *
You're going to shove your head so far up your own ass it will never be seen again? Wouldn't recommend it.


Nah, already covered that, just ask my wife, she'll agree ph34r.gif

Anyway, testing out the induction noise from the intake side. Using an external mic tied into the gopro up front.

https://www.youtube.com/watch?v=wbdIBsFfeAs

Posted by: WarShrike May 27 2017, 05:08 PM

Got my "trackday, bro!" wheels/tires mounted.

Here's hoping I can cut loose for the CAM invitational at Mineral Wells towards the end of June.



Posted by: dojob May 30 2017, 11:41 AM

wheels look great. i've been looking at them for a while myself. Those are the FF2's correct? Seems more concave then I've seen. I know the FF4's don't come in 5x120

Posted by: NOT A TA May 31 2017, 03:09 PM

Wheel/tire combo look good! Don't forget to mark them on the inside so you can tell if a tire rotates on a rim from hard braking. Looks like they lubed them up pretty good during mounting.

Posted by: ws6transam Jun 1 2017, 05:10 PM

Oh, I so *want* a set of wheels like that smile.gif - Trying hard not to go all envy on this topic... Those looks like they will be stellar.

Posted by: WarShrike Jun 8 2017, 01:29 PM

Got some more stuff done on the car, alignment is finished and ran it with the track day wheel set to make sure nothing interfered.






New helmet, just a budget setup, we also have some open cockpit cars come into the shop so this might come in handy.



SKF hub adapters so I can upgrade the front hubs to something safer with sticky tires. There are quite few documented failures of stock hubs and replacements are dodgy as is.



Replaced the stock rack with an FE4 rebuilt setup. I didn't feel like trying to do the EPAS setup because a manual rack alone for the fbody is stupid expensive.


Posted by: WarShrike Jun 18 2017, 03:50 PM



Finally got to run the car, I've still got a lot more learning to do with it and felt I left with a few seconds to gain. Fastest of the day for me was a 60.3, FTD on course was a Z06 w/ 56.1. It tracks through the corners better and it feels great to have 80 more whp and tq available, even if this was a tight miata-ish course in some of it so the whole run was in 1st gear.

I feel the 275s are a good start for me this season as it will help me at least learn more about the car and get some seat time. The BFG Rivals were very predictable but I'm not sure I even found their limits. The icy stuff was from all the gravel kicked up as the event wore on.

• I need a harness, I found myself fighting to stay in position a lot.
• Proper coilovers will have to be something to look into once I move up to a wider tire.
• I need more seat time.

Video:
https://youtu.be/MTYmwMegaU0

Posted by: SuperMacGuy Jun 19 2017, 04:11 PM

A good Sparco seat works wonders. I have one and just use the stock 3pt seatbelt.

Posted by: CrashTestDummy Jun 19 2017, 04:33 PM

I recently purchased a CG-Lock to use in our DD vehicles when we employ them in autocross. We tried it out just two weeks ago in our 2012 Caprice PPV. It worked well keeping the butt in the seat, and not having to use your knees and the steering wheel to hold on.

On the 3rd and 4th Gen F-body cars, even our street cars, I added a 3" lap belt to the mix, bolting them in under the anchors for the OEM belts. That works well, too, the lap belts can be laid in the back seat footwell wen not being used, and they don't interfere with the factory belts.

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