Engine issues

[driller]

Even though winter has closed the tracks around here, the story of the resurrection of the Blue Flame continues here.

Using one online HP calculator, the ET/MPH and vehicle weight combine for somewhere between 400 to 417 RWHP. That is significantly higher than what was indicated on the dyno.

And I feel there is a good bit more available on the table with more tuning as time goes by. :wink:

 

[germansheperd]

What is your race wt?

 

[driller]

What is your race wt?

I tipped the scales at 4,150 pounds at the shootout.

 

[PalmettoMarkVIII]

How much did the car weigh? :eek-large::laugh:

 

[germansheperd]

She's definitely heavy no doubt. Playing with your numbers I agree seems to come out to 417 but that's FWHP instead of RWHP? By my math and trust me I'm a drop out not a scholar, factoring an auto and throwing in the IRS into the mix from your run I came up with approx 340 RWHP from the run?

 

[driller]

Playing with your numbers I agree seems to come out to 417 but that's FWHP instead of RWHP?

I've used several ET/MPH/HP calculators over the time I've been going to the track and those that match the performance of the car most closely utilize wheel HP.

 

[driller]

Kirk made me do it...

 

[tixer]

Nice work, Kirk.

 

[steve]

Very nice

 

[germansheperd]

Kirk made me do it...

View attachment 13752

Looks nice. I've thought about one for my 3V Mustang!

 

[driller]

This thing is a beast of a tensioner! I spent the big bucks and got the double bearing idler as well. Probably a good thing.

Fearful of the 'over the counter' stock belt, I went ahead and ordered a Gates Blue Racing Micro-V belt (Gates K060975RB).

Gates Performance Serpentine Belt Stands Out from the Competition

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• High-modulus, low-stretch polyester tensile cord with the strength to transmit load more accurately with less vibration.
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• Specially engineered adhesion layer offering extended service life
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- See more at: http://www.gates.com/products/automotive/racing-performance-muscle/racing-performance-microv-belts

I'm thinking of using a torque wrench and checking the difference between the tensioners before I install the Thump unit. I have a stock replacement tensioner I can include in the test as well.

I'll keep the stock belt as a spare. :wink:

 

[germansheperd]

Are those better than the Gatorbacks?

 

[driller]

Are those better than the Gatorbacks?

For the price, I certainly hope so.

 

[germansheperd]

How high were you buzzing the motor?

 

[driller]

7780 according to the datalogs. So far, it looks like my target is in the 7500-7600 range but to be fair it's still early in the tuning phase. I haven't gotten the 2-3 shift up there yet and that should be a big help when I do.

I also plan to drop the 4.30s and go with 4.88s to take advantage of the higher revving power curve. That should be right on the edge and if it's too much I can run a slightly bigger tire if needed.

 

[chris2523]

7780

what PCM? gen 2 mark?

 

[germansheperd]

What rpm did your motor make peak hp and what rpm did you go thru the traps at last time out?

 

[driller]

what PCM? gen 2 mark?

'98 Gen2, BTC0 catch code.

What rpm did your motor make peak hp and what rpm did you go thru the traps at last time out?

At one time, I had those numbers memorized but I'll have to go back and look them up.

 

[Lvnmarks]

Kirk has that effect on people.

 

[chris2523]

'98 Gen2, BTC0 catch code.

fantastic. everyone says the mustang PCMs won't turn that kind of rpm.
VIII must have different hardware.