Inliners International Forums General Discussion Blown and Injected Winter Upgrade

Cool, so, no need for a main girdle?

Are your main caps doweled?

Do you have straps across the top on the main caps?

I forgot if you had said what type of material did you use for your turbo manifold. Schedule 40 els? mandrel bent tubing?
Also, what size were the els?

MBHD

Is there a need for a main gridle for 1000hp? I would say NO if the main caps are doweled. But whoo knows ho much power one of these blocks can handle. I'm sure if we decide to step up ( 1300hp )we will do something to the bottom end. We have a few things in mind but were not sure which way to go yet.

Yes, the main caps are doweled. We think this really helps out.

No the main caps are not straped.

1.5 and 2" sch 10 316ss el's from McMaster Carr. The 1.5 actully measure 1.625 on the i.d.

We went racing this weekend. Our local track had a "all out" race similar to the Pinks all out deal. We backed our truck down to a 9.50 (10psi of boost) was as slow as we could go. We did'nt make the show. So decided to make a test-n-tune pass. We turned the boost controller up to 17psi boost. We wanted to see if we could duplicate the 8.79 pass we made with great track conditions. It went 8.82 @ 150mph. It was hot and windy so to be able to run with in .03 was a good feeling.

After seeing a ton of 69 camaros and fox body stangs. The crowd really responded after seeing a 70+yr old truck make a 8 second pass. It's up in the air when our next outing will be.

AWSOME Deal Mighty6

Very nice!

I thought when you ran 8.79 you were running 21 PSI?

How about 25 PSI next time out? Did you tune it to run 25 PSI?

Any videos?

MBHD

OK let me see if I can explain this better.

Our best pass to date is a 8.71 at 19psi manifold pressure.

Our second best pass is a 8.79 at 17psi manifold pressure.

The pressure in the manifold is 2 pounds less than in the boost pipes.

No, It's not tuned for 25psi. We need to put some better rods in the motor before we try that. We have so many things we would like to try before we push the motor harder!

We are not even pushing it hard at the 60' mark. There is some tuning left to do there.

No videos this time around.

Just checking if you had been to a track again?

Or any other work been done to the Chevy?

MBHD

No, Craig and I are working some long hours. It way to hot to race in Texas right now. We want to save our equipment to the weather cools off. There are a couple heads up races in Sept. and Oct. that we want to run.

Right now we are refining a few things. Trying to get the brakes to work better for staging. You have to stage with so much brake pressure and then they don't want to release so they drag. Maybe cover the grill to help with the aerodynamics . All kinds of stuff like that. I'm not sure any if of it will work. Sometimes you just have to try to see if it will. Maybe throw some 275x60 M/T Drag Radials on it. It should be faster in the cooler months.

I understand,when the weather is hot, turbo cars will not perform, well, for the most part anyways.

Dont work too hard & too long,, life can be short.

Even w/a trans brake you need a lot of break pressure?

This is how my friends Typhoon launched w/275-60-15 DR's
http://www.youtube.com/watch?v=SpkS-jNTh94&feature=mfu_in_order&list=UL

Goodluck w/your next track date,let me know when your going & take some more vids.
Thanks

MBHD

I just like to take it easy in the summer months. Being a welder by trade I like to soak up some BTU's on the weekend if I can . Once the cool weather hit's I will be ready to go every weekend if I can.

We have two rev limiters that we use. One is set at 3500rpm. I apply a ton of brake pressure to reach the 3500 rpms. I slowly bump in and set the trans break. This will allow it to jump up to the next rev limiter at 4500-4800 rpms. This helps us control our wheel speed at the hit. The Coan convertor is really tight so it's a little tuff to stage. Now on the other end of the track we have 5-7% slippage. So it is a give and take deal.

Soo, is the Typhoon still all wheel drive?

We can not wait till the one in Oct. It is big race with ink in most heads up magazine's. Maybe we will get lucky and get some ink for being diffrent.

The Typhoon is 2wd. I think it ran 8.8 in the 1/4 & not even dialed in, 1st time & only time @ a track w/his 1204 HP V-6 engine.

He has sold the engine a long time ago & he has family & his business to take care of, so the Typoon is set aside.
Here is his websites. http://www.raceprovenmotors.com/

I am sure,if any of the magazine guys look @ your Chevy,they will be all over you guys & your Mighty6.
MBHD

Mighty6 are you guys going to the race at SGMP in Oct.?

Yes. That is the plan right now. Were going to run the leaf spring shootout. Them boys know to throw a party and a race breaks out .

Are you going by chance?

Unfortunately not, but a bunch of friends will be there from the west coast.Most will be running in the big radial class or slicks vs radials, and a couple in the 8.5 tire class.

Sorry to hear that. It's going to be a hell of good time. We don't have enough hot rod for those boys but a race is a race. Being is 1/8 mile race were going to get after our tuneup a little harder

It's all good because this race is on my bucket list

Is that a 4.3 v6 he is using or a Buick motor?
Is that rwhp or fwhp either way is is making some power.
I have seen that web site before. He does some pretty nice stuff.

That was a 4.3 but, I believe it was 5.0 V-6 Bowtie block stroker crank etc.

HP was on an engine dyno @ Nelson Racing. http://www.nelsonracingengines.com/

Yes, Mike does make some nice products.

MBHD

And yea we did!It was a blast showing the heads up crowd a diffrent kind of race car.
We qal 16th in our class out of 22 entries. We lost in the first round of elemanations. Ran a personal best of 5.506 @ 128.56 mph in the 1/8 mile. This was on 275 M/T Drag radials and NO wheelie bars!

CONGRATS!!!!

MBHD

MIGHTY6,
Those times would be like 8.38 @ 158 mph in the 1/4, unbelievable !!!!

Harry

I like the '69 full size Chevy bow tie on your grill.

Mighty6,
we need some video.

Glad to see it's getting even faster.
Did you turn up the boost more?

MBHD

Thanks Harry!

We are running 23psi of boost. We are just bringing in the boost ramp real aggressive.

This is a promo vid from the race. It shows two of our passes but not the good ones. Go to 3:30 and 6:35 minutes in the video. Kevin is selling the video and I bought one for the good passes.

http://youtu.be/sfJAIfYE3WE

Like all the progress you have made with this setup so far.

Are you still running a crank trigger? I was looking through some older photos on your site and noticed you had the universal one.

How the trigger held up for you? I have been thinking about getting one for my set up but im just not sure if i need it.

Do you think you will make it up into the 30psi range with your set up?

I have a engine Engine DYNO appointment set up for mine in december, although i dont expect anything near as radical as yours.

adam

Thank you.

Yes we are running a crank trigger. It has worked perfect every time. We started running it because our timing was not real steady with the nitrous motor. Rock solid timing on a nitrous motor is a must!

We would like to see what 30-35 psi of boost would do!
We need to pu a fresh set of rods in the motor for that. It turns 7100rpm + at the 1/8 mile alone and 7600+ at the 1/4.

Good luck on the rollers :)I hated going to the dyno. I allways figured that if I could not blow it up on the dyno. The race track wont hurt it!

Mighty6, what brand and type of rod are you running with that?

Bobweight would be neat too.

I ask as I'm still sorting our Bonneville effort so any info you are willing to share would help.

Thanks.

7.250 GRP not sure on the weight though. We got them from Mike Kirby.

I rememberd today why we should'nt just throw more boost to it. The rods we are running were designed for 1100 hp. We are loooking to get a set of rods for 13-1400hp in the future.

Thank you.

You don't use a bob weight when you balance an inline 6.

Harry

Yea, what was I thinking when I answered that maybe the rod weight itself.

After working a ton of hours last year. We are starting to get the racing bug again. Here is the short version of the race last year. We getting geared up to go again. The first few runs we were going easy on the tuneup. The video guy did not get the best pass of 5.50 @ 128mph but it is still fun to watch.

http://youtu.be/kMWKOe__sP0

Wow! A couple of those launches were scary "up".
All cool though.

Very nice runs, nice wheelies also!

What is next?
More tuning?
MBHD

Yeah, some of those wheels up launches looked like it could have turned into "rubber side up" fairly easily.

Does give credence to a straight 6 as a drag race engine though.

Thanks fellas, we just like to show what "old school" can do
The radial tire is so much more predictable than a slick so you can push it a little closer to the limit.

Our torque convertor is off at Coan getting a upgrade for this setup (turbo). The convertor was not optimum for this setup because it was built for a nitrous motor.

We are going to remove some weight because it is 270 lbs heavy for the class. We think a 100# will come off pretty easy. The other 170# will be pretty expensive so it has to wait for another day.

Back to testing gain

Just curious if you were getting a lot of slippage in the converter because of the turbo engines torque?

What is the minimum weight for the class you are racing?

Have fun testing.

MBHD

Yes, turbo cars make so much more torque. 30%@ 1/8 and 11-13% slip at the 1/4 mile causing it to build a lot of heat in the transmission. You could not put a bunch of power to it without overheating the transmission. Coan claims the reworked convertor will be 4-5% max. Which is ideal for our setup.

We can weight 2700lbs when we race in Ga. Some other classes we need to weight in at 2850lbs.

We made it out to the track for the first time this year. The convertor upgrade proveded to be the "hot" ticket. Our slippage went from 16% down to 5% on the 1/4 mile. This our new personal best and we backed it up. This is on 275 m/t drag radials. And............yes the data shows there is more left in it Enjoy!


http://youtu.be/WjQ7PmXSKcw

Very cool, and congrats.

Love the sound of that turbo spooling up.

Oh man! The PA announcer sounds incredulous when he announces the top end speed.