Engine fire wall?

[Goose57]

Hi all, getting close to installing my new Optimizer motor. What are you guys putting on the fire wall in the engine bay? I’ve seen the Dyna Pad product but I’m looking for something a little thinner and that it would stick to the wall and handle the heat. Thanks Gus.

 

[dbrannon79]

have a look at LizardSkin and see if this might be what you'd like.

LizardSkin

Automotive Heat and Sound Damping

lizardskin.com

iirc summit racing sells it on their site too.

 

[Goose57]

have a look at LizardSkin and see if this might be what you'd like.

LizardSkin

Automotive Heat and Sound Damping

lizardskin.com

iirc summit racing sells it on their site too.

Thanks I will look into it.

 

[SnowDrift]

Check my thread in my signature line. Covered a product in there on mine recently.

 

[Goose57]

Check my thread in my signature line. Covered a product in there on mine recently.

Thanks SnowDrift. Very nice and informative post on your build. Isn’t this site great they have a lot of knowledgeable guys on here. Here is my new Optimizer I’m putting in my 95’ Dually. I hope I don’t regret sending it to TSP to do his magic. I am trying to address the heat issues with a high volume WP and a Duramax fan upgrades. Also a fluid damper from Leroy’s. Where did you source your oil cooler? Also I can’t find an OE trans. cooler either. Don’t want to chance cleaning the old one because I had the trans. rebuilt.

 

[Glagulator]

Search Long or Tru-cool L7B for the trans cooler, H7B for the oil cooler with NPT.
OEM - GM 15995536 or 89022535 for the trans cooler.

 

[SnowDrift]

MRB9265 from Kartek.

My transmission cooler is bigger than the original. It is from our old '94 Suburban. About the same size as the oil cooler. It swapped in without issue. Swapped bracket between trucks.

 

[Goose57]

Thanks guys for the info. Will the stock trans. lines fit the coolers suggested? Also I have Leroy’s braided steel oil lines that fit the oem oil cooler. I’ll research them. I guess I should of researched them before asking the questions Thanks again.

 

[Goose57]

Search Long or Tru-cool L7B for the trans cooler, H7B for the oil cooler with NPT.
OEM - GM 15995536 or 89022535 for the trans cooler.

I searched the GM parts ie GM Parts Giant, GM Whole sale. They are all saying those OEM part numbers only fit 96’ on. Mine is a 95’. I believe they will still work.

 

[Goose57]

MRB9265 from Kartek.

My transmission cooler is bigger than the original. It is from our old '94 Suburban. About the same size as the oil cooler. It swapped in without issue. Swapped bracket between trucks.

Did that cooler from Kartek except the oem transmission lines with those funky connector ends?

 

[ak diesel driver]

The difference is the transmission oil line size 96+ used 3/8 earlier used 1/4

 

[dbrannon79]

I would do away with the factory GM connections. they can pop out and leak on you. most aftermarket coolers are female NPT thread so you can use most any standard fitting. run you a hose barb connection from the cooler around to the one in the radiator but use a good oil cooler type hose that can handle the temps. for the steel trans lines, use a flaring tool to make you a barb on the end. then slip on the hose and clamp it. the flare type barb is to keep the hose from coming off!

 

[SnowDrift]

My oil cooler has female NPT fittings

 

[Will L.]

Leroy’s hoses are nice, and oil hose is nice. Imo there is nothing to compare to getting hydraulic hose made like whats on heavy equipment. The whole truck can be worn out, engines and transmissions replaced, biden and the greenies will outlaw fuel- but those hoses will not fail.

 

[ak diesel driver]

I think I misspoke earlier the lines are 5/16 not 3/8

 

[Paveltolz]

Built my own transmission lines. 3/8” braided and 6 AN fittings. Then, the 6 AN to whatever the transmission, cooler and Radiator fittings are. I don’t trust my recollections so here's a couple of pictures.

90* fittings at the Transmission


Radiator Connector

 

[ak diesel driver]

What year radiator is that Paul?

 

[Paveltolz]

1996 era.

 

[SnowDrift]

Those are nice looking. Are they PTFE?

 

[Paveltolz]

Those are nice looking. Are they PTFE?

Absolutely. Did the Fuel Lines from the tank forward to the IP; Turbo Oil Feed and Transmission lines.
Summit racing Part # SUM-230615

https://www.summitracing.com/parts/...MGwezurDWV3J0VQnSvWGngbG4t__vfSxoCi68QAvD_BwE​

Got a fitting test kit to pressure test the completed lines before installation along with their line cutter but, not a fan of the cutter, still need to wrap with electrical tape before cutting and putting on the fittings.

Summit racing Part # SUM-230615

https://www.summitracing.com/parts/...MGwezurDWV3J0VQnSvWGngbG4t__vfSxoCi68QAvD_BwE​