rear hood seal in or out?

[mich_132003]

quote:Originally posted by JPMS GT

I did some temp tests with it in and out and found no change while moving above 25 or so. I put it back in too.

[8]

I've had mine out since day one - first mod I made - and without any scientific testing, at idal, there is a lot of heat leaving the engine compartment. Keeping mine out ! ! ! !

[Mean Green]

quote:Originally posted by mich_132003

I've had mine out since day one - first mod I made - and without any scientific testing, at idal, there is a lot of heat leaving the engine compartment. Keeping mine out ! ! ! !

Of course you realize that with it out the air is not going over the turbo to cool it off like it was designed to do. You are shortening the life of your turbo but if you think it is cool that the hot air leaves the top of the hood then good luck. I hope you have priced a new turbo and are saving up [xx(]

[mich_132003]

quote:Originally posted by Mean Green

Of course you realize that with it out the air is not going over the turbo to cool it off like it was designed to do. You are shortening the life of your turbo but if you think it is cool that the hot air leaves the top of the hood then good luck. I hope you have priced a new turbo and are saving up [xx(]

Mean_Grean - With all due respect, I doubt that the rear hood weather stripping was designed and put in place to cool the Turbo. Can't see how hot engine air is going to cool it down. If they really wanted to cool the Turbo, you’d think they would force cooler outside air into the engine compartment.

[Mean Green]

quote:Originally posted by mich_132003

Mean_Grean - With all due respect, I doubt that the rear hood weather stripping was designed and put in place to cool the Turbo. Can't see how hot engine air is going to cool it down. If they really wanted to cool the Turbo, you’d think they would force cooler outside air into the engine compartment.

With the rear seal out the air is now escaping and not being forced down onto the turbo to help cool it. The air is not as hot when you are moving. Simple air flow direction. 3BarBoost (Chrysler engineer) said we should not remove it because of the turbo cooling and he helped to design the GT. I put mine back in.

[mich_132003]

Mean_Green - I put mine back after your first response. [?]

[pthammer]

PTHAMMER - 2003 GT Turbo Stage I, PT Teaser front w/Cowl Induction Hood,(notice the term Induction) and yes air goes into engine compartment from the pressure off the windshield through the back of the hood, at highway speeds, as this hood was developed for the racing environment. PTeaser claims a 20% increase in air flow with grille and hood. Yes we checked and the air does go into the engine compartment. The Turbo is water and oil cooled, by lowering the engine compartment helps lower the temp on everything. OH YES, 267hp on the dyno, 1/4mi 96mph in 14.56 sec. on stock Goodyear tires. Running a little rich on the dyno so will install a boost controller next to pick up a few more hp's. For what it's worth PThammer[:I]

[Mike Radowski]

Let's see, hot engine air about 150¡ trying to cool a 900¡ turbo, Yeah, that engine air is cooler so it appears it will work to cool the hotter turbo.

Mike

[GR8FLPT]

quote:Originally posted by pthammer

PTHAMMER - 2003 GT Turbo Stage I, PT Teaser front w/Cowl Induction Hood,(notice the term Induction) and yes air goes into engine compartment from the pressure off the windshield through the back of the hood, at highway speeds, as this hood was developed for the racing environment. PTeaser claims a 20% increase in air flow with grille and hood. Yes we checked and the air does go into the engine compartment. The Turbo is water and oil cooled, by lowering the engine compartment helps lower the temp on everything. OH YES, 267hp on the dyno, 1/4mi 96mph in 14.56 sec. on stock Goodyear tires. Running a little rich on the dyno so will install a boost controller next to pick up a few more hp's. For what it's worth PThammer[:I]

Thanks for the input. Can't wait to get my hood painted & installed.

[2step]

GR8FLPT....

That PTeazer front end should give you a big improvement in cooling everything under the hood if I'm any judge. I know that you've a lot on your plate with lots of mods coming up but is there any chance that you could do a before and after under hood temp reading? That would tell the tale.