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Ah the "fun" @#$!@# never stops ...

This winter in addition to getting to the final state on the drivetrain its also time to finish all the little things from the initial build - like adding the front sway bar. << Today's task..

Before xmas I changed the front and rear springs to get the ride height up 2" - the oil pan was hitting hard after a bump.

So this (more angle on the tie rod zerks) and getting the drive shaft angle corrected (raised the back of the trans a lot about 2") resulted in the inner tie rods hitting the corner of the oil pan.

So 3 choices:

- redo the engine mounts and raise the engine 1/2" - front clip has to come off to get access...
- notch the oil pan (means pulling the engine - @##$%@#).
- lowering the drag link by messing with the pitman arm, idler arm and spindles ...

Right now I'm more inclined to raise the engine but are there any front end wizards on here that could accurately predict the effects on bump steer etc. if I messed with the drag link ???

The suspension is 1978 Nova ...

Anyone do any road / roundy roundy racing?


51 GMC 4.2 turbo
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Another older rodder (60+) stopped by to look at the 4200 in the '51 that will be doing a 4200 (delete 235) swap came up with a solution that will fix this and make room for the A/C compressor - swap to a rack and pinion..

Called around - no kits for a 78 nova (thats the clip I'm using) but they do have one for a 79 Camaro - hmmm checked the drag link, inner/outer tie rods, idler arm and I think the steering box are the same between the Nova and Camaro.. hmm should fit..

Just not a low cost solution.. saving pennies.. oh wait Canada cancelled them today..

Last edited by efi-diy; 02/05/13 04:21 AM.

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Those old timers are full of ideas. No pennies? What are our thoughts worth?


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There are several universal front crossmembers available in the street rodding market, most are the rectangular tubing style and can provide mounting for a front or rear steer rack.



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Progress is being made - slow though on getting the methanol system installed. Its the never ending plumbing job.. aeroquip is not cheap stuff to work with...


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Quick update.. the last of the plumbing is on the way from Summit..

The aluminum alky fuel system parts should be ready to get picked up from the anodize shop soon.

Just finishing the last of the brackets to eliminate the front sheet metal support rod - then all the brackets built over the winter head for finishing.

The first local rod run is in 2 weeks today - you wouldn't know it from the weather outside - 1" of snow .... freaking winter started early (mid-Oct) and still hasn't had enough .... 6 months next week and counting #@$!@#$!@#$!

Next update once I get all the parts installed.

Last edited by efi-diy; 04/08/13 12:35 AM.

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Good deal, post some pictures. Looking forward to seeing it this year. The weather here isn't the best but the snow is gone and the weeds are on the march. Too windy to spray too muddy to till.


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I spoke too soon 2" of snow and still falling, lots of wind. It must be worse in Alberta.


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Don't ya love Global Warming.... \:D


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Added a bit of color to the engine compartment....

[img] Uploaded with ImageShack.us[/img] alky supply


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 Originally Posted By: jalopy45 #4899
Don't ya love Global Warming.... \:D


!@#$!@#$&#$! we got ANOTHER 6" of s!@@ last night and its still coming down ............ we're starting into month 7 of winter here - 1st snow last year was Oct 15.


Last edited by efi-diy; 04/14/13 01:48 PM.

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Short update - made a pre-empted trip to the chassis dyno.

Started working on a low octane (89) tune in case I ever get stuck in the boonies again with crap gas.

Tune and exhaust differences (to shut the thing up) -200HP @8 psi from last round 3 years ago. Drop the exhaust at the bottom of the down pipe and add 2* timing added +110HP @10 psi and lots left to go. total timing is just 12* under boost. (420 rwhp)

So back to trying different exh. configs that 1) flow well enough & 2) are quiet enough to keep me sane.

Have another day booked soon - this time with 94 octane in the tank - we'll add in timing and be back to the numbers from 3 years ago. Then add more boost.

Last will be to tune on M100 which is finally working.

Last edited by efi-diy; 05/24/13 03:04 AM.

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It is impressive. Looking forward to more.


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Where is the video? We want to hear it and see it. Rather be there helping.
What do you project for power on good fuel?


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3yrs ago it was 510 rwhp on 94 oct. @11 psi with M100 should be able run 18 psi or more. So 750 ish. Well into what used to be stout BBC territory...

You drove through Calgary so come on up....


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 Originally Posted By: efi-diy
3yrs ago it was 510 rwhp on 94 oct. @11 psi with M100 should be able run 18 psi or more. So 750 ish. Well into what used to be stout BBC territory...

You drove through Calgary so come on up....


Did you ever take to a track or virtual track run?


MBHD


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This weekend if all goes well we'll run the 1/4.

Last tune on pump gas resulted in 530 RWHP @ 15# boost.

A aborted M100 pull with a really rough tune added close to 110HP on top of the gas tune at 5000. It like the fuel... a LOT!

Next week M100 tune...


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Have you considered ethanol?

Not near as caustic or toxic (not criticizing, just curious).


My, what a steep learning curve. Erik II#5155
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Went to the track Sat... best 11.60 @ 117.53 Leaving on the Tbrake @5#

I'm thinking if I leave at 10# it will chop another 4-5 tenths off... knocking on 10's... only will get 1 shot at it though - no bar..

Next time I head by a public scale I'm going to weight the truck. My guess is close to 4000#

So far pretty happy with the results.. got 18 MPG on the way home...

No where around here to get ethanol in volume...

Last edited by efi-diy; 06/10/13 04:02 PM.

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Congrats!
I assume you were running sticky tires?
T-brake on the 4L80E? What make is the T/brake? Jakes?

Any vids of your run?

MBHD


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MT DOT Drag radial 235/60-15. Tbrake is from Jakes.


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Nice!

How do you like the T-brake & what RPM are you launching at?

MBHD


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For a turbo deal I really like the TBrake. Later in the year once I have the transmission sheild in place and some other work completed I'll go back to the track and try leaving at 10#.

I was watching the boost gage not the tach. The MS3 has a boost launch control - basically set the desired boost, enable the tbrake/launch and floor it. The controller does the rest of hte work - maintains engine rpm/boost levels until the button is released. If I hit wheelspin then there is a delay time I can set before the boost is allowed to ramp up.

Finished the M100 tune last night - >100 RWHP/hole.... \:\) same on torque.... just lower rpm :)) this was @ 15# boost... The GT4088 turbo is maxed out. I have a GT4570 on the shelf but I have fab to do to get it installed

It has a dual personality for sure.. mild mannered on gas/low boost AND a brute on M100...

Last edited by efi-diy; 06/12/13 04:33 PM.

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Went to the dump with the truck - more to weigh it than anything else....

Its got porky... 500# more than the last time I had it on the scales. 4375# !

Guess the biggest adds were the 4L80e and the dana 60.


A bit more from the last dyno session...
The boost peaked at 18# @4500 holding until 5200 then tapered off to 15 at 5300 holding steady until the end of the pull at 6200 rpm..

Max torque (wheel) was 608 Lb/ft and 605 hp at 5200 - the torque fell off with boost. Figure 15% drive train loss. Darn close to 3 HP(flywheel/cu_in) This is on M100 - 5* of added timing made a big jump in power (40 HP). I checked the turbo map - its maxed out...

The dyno operator has tuned a lot of high HP cars (2800+ hp 10.5" tire cars etc..) figures if the boost held at 18# we would get close to 710 RWHP...

At 8# its already making 450 RWHP at 4000 - peaks at 510 at 9.5 - this is on 94 octane pump gas.

I have some plenum work to do and get the GT4570 installed. Before the end of the year we'll make another trip to the track..

Old Jimmies don't die they go faster (GMC 1/2 ton)....

Last edited by efi-diy; 06/17/13 12:54 AM.

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That is impressive. Your hard work is paying off.


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For my 67 Chev short box step-side, I was thinking of a 292 inline. Now considering a 4200 inline with a 700R transmission.

Aside from your 51 GMC Do you have any experience with the 4200 GM inline swapped into 67-72 Chevs?

For the electronics what sort of changes can you suggest?

From the internet it appears that some wiring must be deleted from the wiring harness. As part of the wiring do you know if the gauge panel have to be included?

Is there anyone, who would you recommend as a street-rod wiring company, in Alberta or in Canada?

Having obtained a modified wiring harness, what would be my next step?


Side note: Does anyone still make a supercharger kit for this engine?

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Jeremy on lime-swap.com can supply the modded harness and re-programmed PCM.

I'd suggest using a 4L60e as its the native transmission for the 4200 and the PCM with control it. Also its a direct bolt up. The TH700 would need an adapter plate.

The best approach is find a rolled donor vehicle so you can get the every thing including the small parts that you'll end up chasing.

All the boosted installs are home rolled..


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I should be going to the Grey eagle casino car cruise with the truck - is in sw calgary tomorrow night - come on down and have a look.


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Hopefully see U tonight!

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Nice to have met you last night. Your comments about trouble producing rear sump casings, made me wonder about CNC billet manufacturing process. Did you ever inquire about such cost$$$$?
Just thinking out loud!!

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I looked into a CNC pan. Ballpark $2000.

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The Rolls Royce guy will do the R&D on a rear sump design, which would provide a proprietary ownership for only $5K. Now where is my piggy bank?

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Marc already has a rear sump cast pan available, don't know if there would be any takers for a CNC one at that kind of money he got quotes on. Not really any need for one with the cast one available.



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I thought Marc had lost his casting source.

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He mentioned here and on several other forums he had a price increase in their production, but no mention of not being able to produce them any longer.



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1200 HP worth of inliners...

4200 powered.....

Taken in Reno during hot august nights....


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Marc did you have and alignment or tire problem on the front? Or did Beater take the picture?


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 Originally Posted By: efi-diy
1200 HP worth of inliners...

4200 powered.....

Taken in Reno during hot august nights....


Nice car.
How bout some details on it?
How is your GMC coming along?
How do you like the 4L80E so far?

MBHD


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I thing the alignment is ok .. must be the light angle..

Took a while to get used to the 2.48 1st gear.. the 29 belongs to Tom T. a fellow inliner. 4200 powered - excellently executed piece.


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Here are some pictures of Tom's roadster. I left my camera in my pickup at the bar-b-que in Wendover. They made me park across the street from the real Inliners so I didn't get pictures of Marc' s and Erik's trucks with the hoods up. There was a lot of interest in those two 4.2s. Very different approaches to a similar end. Well sorta' similar.







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