Intake for 383 L98
Le Mans Master
Joined: Apr 2005
Posts: 8,077
Likes: 4
From: Scarborough ONTARIO
I have gone through stock TPI, modded aftermarket TPI and now SR, i would say miniram for ur setup and actually 3.54 gears instead of 3.07,
So conlcusion: miniram (1205 gasket) with 3.54 gears, 58mm TB. An MSD 6aL would definetly help. What heads u have?
So conlcusion: miniram (1205 gasket) with 3.54 gears, 58mm TB. An MSD 6aL would definetly help. What heads u have?
Le Mans Master
Joined: Jan 2002
Posts: 9,036
Likes: 13
From: Edmonton AB
a higher-than-OEM stall and a transmission cooler for the recipe? In
time, some transmission internals and perhaps a D44?
.
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
Miniram
He has stock heads.
Le Mans Master
Joined: Jan 2002
Posts: 9,036
Likes: 13
From: Edmonton AB
With the other equipment already in the stable, is a lot more performance
required here? Or is your preference that the C4 just be a reliable & fun
tanning machine?
.
Thread Starter
Team Owner
Joined: Nov 2001
Posts: 34,124
Likes: 105
From: Pensacola FL
I drive the car a lot, even to work, so 3.54s would be out of the question. I'm looking for a budget 3.07 in the near future.
I do think that I'd benefit from a stall and shift-kit, but that would be down the road.
Reliability is a plus, which is why I asked about gasket leaks and such...
The car drives really nice now, but I hate to leave 30rwhp and 1000-1500 usable rpm on the table for a simple intake swap...
Which leads me back to asking you guys for input. I really appreciate everyone who took a minute and give me an opinion. You guys rule!
Thread Starter
Team Owner
Joined: Nov 2001
Posts: 34,124
Likes: 105
From: Pensacola FL
I'd probably go SR on your car with your cam selection. If it was my car I would put a bigger cam in it and then do a Mini. The bigger the motor the smaller every particular sized cam acts in comparison to putting that cam in a smaller motor. EX. So a 219 in a 383 would act like a 224 or something like that in a 350. Do you follow? The bigger the motor the more cam it can handle.
I do disagree with a TPI setup worked over or not, they are not sufficient for a 350.
I do disagree with a TPI setup worked over or not, they are not sufficient for a 350.
I like the SR in principle, but the cost and horror stories about leaks/poor fitment/pain in the *** install and removal make me leery.
Le Mans Master
Joined: Jan 2002
Posts: 9,036
Likes: 13
From: Edmonton AB
Ignoring the bump at the start, I interpret the results above as
RWH = 360TQ @ 3600 / 265HP @ 4250
If we use a factor of 21.74% to convert (ie: divide by 0.7826),
then the RWH numbers above are reasonably close to the T1 numbers below
T1: = 460TQ @ 3000 / 334HP @ 4500 [Pink/Yellow]
By changing only intake runner length, we arrive atT2: = 449TQ @ 4500 / 416HP @ 5000 [Lt Blue/Red]
T3: = 481TQ @ 4500 / 424HP @ 5000 [Dk Blue/Green]
T3: = 481TQ @ 4500 / 424HP @ 5000 [Dk Blue/Green]
This is a simplistic look at the situation but perhaps someone might
be interested in the apparent effects of runner length.
.
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Le Mans Master
Joined: Apr 2005
Posts: 8,077
Likes: 4
From: Scarborough ONTARIO
I thought of adding TC too, but as the danzinger wants to stay within budget, TC itself will cost 550 plus tranny cooler another 50-100 bux, this will add little burden, but he can do this later down the road,
Iam talking about 9.5" 2800 stall lockup TC.
D36 will sure survive for a 450 CHP, mine is a 383 too and dont know how much HP but i ran 12.321 best and 12.40-12.60 pretty consistent plus beat it on street too, sofar i already logged 18k miles, iam lucky with D36 so far.
Dont consider aftermarket TPI as this cost u 600-800 easily (base+runners+ported plenum), for merely another 30 CHP, so spend one time and consider Miniram and call it a day dont turn back.
Well another 1500 bux roughly it sure will wake up and easy low 12 sec plus extra gunt on street too. My .02
Le Mans Master
Joined: Apr 2005
Posts: 8,077
Likes: 4
From: Scarborough ONTARIO
With Stock heads and mild cam, if used with miniram i dont think it will make power more than 6k rpm, probably upto 5800 rpm (guesstimate), so he dont have to worry about turning 6k+ rpm and still able to squeeze 325+ Rhp.
Thread Starter
Team Owner
Joined: Nov 2001
Posts: 34,124
Likes: 105
From: Pensacola FL
Thread Starter
Team Owner
Joined: Nov 2001
Posts: 34,124
Likes: 105
From: Pensacola FL
I thought of adding TC too, but as the danzinger wants to stay within budget, TC itself will cost 550 plus tranny cooler another 50-100 bux, this will add little burden, but he can do this later down the road,
Iam talking about 9.5" 2800 stall lockup TC.
D36 will sure survive for a 450 CHP, mine is a 383 too and dont know how much HP but i ran 12.321 best and 12.40-12.60 pretty consistent plus beat it on street too, sofar i already logged 18k miles, iam lucky with D36 so far.
Dont consider aftermarket TPI as this cost u 600-800 easily (base+runners+ported plenum), for merely another 30 CHP, so spend one time and consider Miniram and call it a day dont turn back.
Well another 1500 bux roughly it sure will wake up and easy low 12 sec plus extra gunt on street too. My .02
Iam talking about 9.5" 2800 stall lockup TC.
D36 will sure survive for a 450 CHP, mine is a 383 too and dont know how much HP but i ran 12.321 best and 12.40-12.60 pretty consistent plus beat it on street too, sofar i already logged 18k miles, iam lucky with D36 so far.
Dont consider aftermarket TPI as this cost u 600-800 easily (base+runners+ported plenum), for merely another 30 CHP, so spend one time and consider Miniram and call it a day dont turn back.
Well another 1500 bux roughly it sure will wake up and easy low 12 sec plus extra gunt on street too. My .02
Anyways, torque-convertor, shift-kit and cooler down the road for sure along with 3.07s. I'm pretty sure the D36 will survive OK behind the A4 as I won't be bolting on slicks anytime soon...
If I could get the intake issue resolved for $1K, I'd be pretty happy. Bear in mind that this will involve a bigger TB and a tune. Would I need different fuel rails with any of these intakes? I already have 30lb injectors, so that's covered...
Keep the input coming! Thanks!
Instructor
Joined: May 2006
Posts: 128
Likes: 1
From: KY
You could always port your stock stuff, not as good as aftermarket stuff, but better than what you got.
http://www.thirdgen.org/siameseport
http://sethirdgen.org/TPIbase.htm
http://www.thirdgen.org/siameseport
http://sethirdgen.org/TPIbase.htm
Le Mans Master
Joined: Apr 2005
Posts: 8,077
Likes: 4
From: Scarborough ONTARIO
Yes u need different fuel rails with miniram, basically the fuel rail kit contains, thermostat housing, AFPR, check TPIS.com.
Oh i use slicks on my D36 and install recently 150 shot nitrous too, all these with D36 yessir. U dont have to upgrade injectors 30 lbs is more than i am running 24 lbs and set 42 psi with vacum hooked and still blm's are little richer side even at wot its pretty good.
Regarding TB again u dont need it unless more than 450 Chp, it wont hurt by bigger TB though. Even if u need it u can always buy a used one for 200 bux.
Regarding 1k some people are lucky to get a used one for that price, just keep looking for one in sale section or on Ebay or thirdgen.org.
Good luck.
Oh i use slicks on my D36 and install recently 150 shot nitrous too, all these with D36 yessir. U dont have to upgrade injectors 30 lbs is more than i am running 24 lbs and set 42 psi with vacum hooked and still blm's are little richer side even at wot its pretty good.
Regarding TB again u dont need it unless more than 450 Chp, it wont hurt by bigger TB though. Even if u need it u can always buy a used one for 200 bux.
Regarding 1k some people are lucky to get a used one for that price, just keep looking for one in sale section or on Ebay or thirdgen.org.
Good luck.
Race Director
Joined: May 2003
Posts: 10,749
Likes: 41
(Before you guys crucify me, I did do a search and read Vader's site...)
I have a mild 383 that still has the factory TPI on it. I wanted to upgrade as I know that I'm probably leaving some HP on the table. The problems are:
a) I don't want to spend a butt-ton of money
b) I don't want to lose a ton of torque (A4)
c) I don't want vaccuum leaks, or added install/removal hassle
If I could get some real world experience with set ups (like SLP/Edelbrock runners & ported base, FIRST intake, SR & MR, etc...), it would really help my decision. I don't mind looking for used stuff to keep the price down.
Magazine articles don't always put things into perspective, so if anybody could spend a couple minutes and share their set-ups, numbers and reviews, I'd be greatly appreciative. Thanks!
I have a mild 383 that still has the factory TPI on it. I wanted to upgrade as I know that I'm probably leaving some HP on the table. The problems are:
a) I don't want to spend a butt-ton of money
b) I don't want to lose a ton of torque (A4)
c) I don't want vaccuum leaks, or added install/removal hassle
If I could get some real world experience with set ups (like SLP/Edelbrock runners & ported base, FIRST intake, SR & MR, etc...), it would really help my decision. I don't mind looking for used stuff to keep the price down.
Magazine articles don't always put things into perspective, so if anybody could spend a couple minutes and share their set-ups, numbers and reviews, I'd be greatly appreciative. Thanks!
Pro
Joined: Oct 2004
Posts: 644
Likes: 15
From: Clarksville Tennessee
Engine is a mild 383 with Eagle crank and 10ish:1 dished Sealed Power hypereutectic pistons, cleaned up stock heads, 212/216 (I think...I'll have to dig through receipts) cam, and Hooker LTs.
She made 266rwhp/370rwtq on the dyno today, but fell off a cliff at 4500rpm. I was going to start another thread with the dyno graphs/pics, but can post here if it helps. Thanks! ben
She made 266rwhp/370rwtq on the dyno today, but fell off a cliff at 4500rpm. I was going to start another thread with the dyno graphs/pics, but can post here if it helps. Thanks! ben
Thread Starter
Team Owner
Joined: Nov 2001
Posts: 34,124
Likes: 105
From: Pensacola FL
Last edited by danziger; Jul 7, 2007 at 03:16 AM. Reason: Wordage