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Engine - Turbo & Block Modifications and upgrades to maximize your Dodges turbo output & Improving strength and durability - pistons to crank.

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post #1 of 18 Old 09-13-2019, 08:50 PM Thread Starter
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Turbo flange types and dimensions?

I couldn't find my answer with a search, now others can find this thread with answers. I have a 87 csx. What hotside manifold flange will I have? Also, where is the rev limiter set at for my 87 csx? It revs to the cel and buzzes hard and scares me. Thanks. Plans are to have a turbo that makes boost to redline efficiently.
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post #2 of 18 Old 09-13-2019, 09:08 PM
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Re: Turbo flange types and dimensions?

You'll have what they call a Chrysler flange. What are your power goals? If the CEL is coming on you have other problems. Check the codes, look here: MiniMopar Resources. I'd also read the turbo database here: The Dodge Garage. You'll want to visit the vendors that specialize in our cars. Turbos Unleashed and FWDPerformance.com They'll be able to help you get the pars you need.
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post #3 of 18 Old 09-14-2019, 07:48 PM Thread Starter
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My cel only came on when I revved it up real high. I have no tach so no telling when it came on. I'm looking to making peak power to redline, I want to utilize the entire rev range when I build it a little.
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post #4 of 18 Old 09-14-2019, 07:58 PM
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Re: Turbo flange types and dimensions?

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Originally Posted by GLHNSLHT2 View Post
You'll have what they call a Chrysler flange. What are your power goals?
yup, chrysler specific pattern ..
it's larger - so perhaps stronger? - than the standard T3.

but yur 87 TII garrett is not really the limiting factor for performance in an otherwise stock(ish) combo.

a 'larger' turbo on an otherwise stock(ish) motor will not necessarily make more power,
even if it does make a bit more,
you'll also have MORE turbo lag...

so, what are your goals ? then we figger how to get there ,.,
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post #5 of 18 Old 09-14-2019, 08:10 PM Thread Starter
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Goals are 300whp if my trans and motor can take it. That should give me pretty good roll power. All power issues can be solved with boost. Cold boost. I've seen comparisons of the air research t03 to newer tech visually, id like to update and have a turbo that doesn't run out before redline. I don't mind lag, I'll grab a gear, if I didn't want lag I'll drive my supercharged jag. Turbos that peak later make less tq, putting less stress on everything and traction, that's why I want a later peak. Thank you.
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post #6 of 18 Old 09-16-2019, 10:29 AM
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Re: Turbo flange types and dimensions?

regardless of what turbo you run, stock fuel system and ECM will only support ~14 psi...

if you want more than that you have to provide enough fuel e.g. a "3-bar" calibration and supporting fuel system mods, including perhaps 'oversize' injectors..
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post #7 of 18 Old 09-16-2019, 10:54 AM Thread Starter
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I have been referred to lots of info pages and vendors and have a good idea of what my goal is. I'm making 14 psi right now. My grandpa claims it has 80 lb/hr injectors. I don't believe him, next step is to install my wideband. Thanks.
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post #8 of 18 Old 09-16-2019, 11:46 AM
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Re: Turbo flange types and dimensions?

there is a part number in the injectors that will tell what they are
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post #9 of 18 Old 09-16-2019, 05:44 PM
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Re: Turbo flange types and dimensions?

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Originally Posted by ivans572 View Post
I have been referred to lots of info pages and vendors and have a good idea of what my goal is. I'm making 14 psi right now. My grandpa claims it has 80 lb/hr injectors. I don't believe him, next step is to install my wideband. Thanks.
Prob 27 or 33lb inj's in there right now. I run 95's @ 40psi boost and around 600WHP ;)
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post #10 of 18 Old 09-17-2019, 04:02 PM
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Re: Turbo flange types and dimensions?

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Originally Posted by Shadow View Post
Prob 27 or 33lb inj's in there right now. I run 95's @ 40psi boost and around 600WHP ;)
They should be 33s if its a TII setup (which it should be)

I was about to comment on the 80 lb/hr injectors as well. 850 CC injectors support over 400 WHP on pump. Hard pressed to find those on a stock car.
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post #11 of 18 Old 09-18-2019, 07:20 AM
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Re: Turbo flange types and dimensions?

Quote:
Originally Posted by ivans572 View Post
I couldn't find my answer with a search, now others can find this thread with answers. I have a 87 csx. What hotside manifold flange will I have? Also, where is the rev limiter set at for my 87 csx? It revs to the cel and buzzes hard and scares me. Thanks. Plans are to have a turbo that makes boost to redline efficiently.
If I recall correctly, 5 speed cards did not have a rev limiter set from the factory, only the automatic cars. Or maybe that was governors...
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post #12 of 18 Old 09-18-2019, 08:13 AM
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Re: Turbo flange types and dimensions?

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Originally Posted by EaZyE426 View Post
If I recall correctly, 5 speed cards did not have a rev limiter set from the factory,
That's not what the calibration says.
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post #13 of 18 Old 09-18-2019, 08:17 AM
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Re: Turbo flange types and dimensions?

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I want to utilize the entire rev range when I build it a little.
That's not a characteristics of a turbocharged engine.
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post #14 of 18 Old 09-18-2019, 08:36 AM
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Re: Turbo flange types and dimensions?

reving this car will make no difference.
once you are over 4,500 stock you arent making any more power.

Please do some research before you start trying to " utilize the entire rev range"..
the cylinder head and manifolds and turbo and cam shaft wont make power by "revving" it or having a higher peak RPM.

untill you intend to change all those components to ulitize a higher RPM power range then you should avoid anything over 5,550 as it will only hasten the destruction and part out of your vehicle.

and your next post will be about it blown up.
followed by a post 6 months later of you parting it out..
you have been warned.
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I have acute Taurocoprophobia. Achew!
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post #15 of 18 Old 09-18-2019, 04:42 PM
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Re: Turbo flange types and dimensions?

Don't agree totally with that. My 2.5 with a stock head, intake manifold liked 5700-6000 shifts with a ported exhaust manny, S60 turbo, 3" exhaust and a cummins IC. That motor was kinda wierd though. The 2.2 shortblock that was under it liked 5200rpm shifts to get the best 1/4 mile time. I put a 2.5 under it, changed nothing and the car wanted 5700rpms. Going to the cummins allowed me to go to 6k though it would run the same time if I shifted between that and 5700.
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