C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Superram or carb?

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Old Dec 29, 2003 | 05:14 PM
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Default Superram or carb?

I was almost sure that I'll go with superram, but spending some
time on forum allways gives me new crazy ideas.

I've seen that some cars on forum are equipped with carbs.
What do you think, would it be good combination with mods
that I've done so far ( see sig. ) or should I stick with superram idea?

I think that it would also be cheaper to go with carb.
Emissions are not an issue.
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Old Dec 29, 2003 | 05:32 PM
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Default Re: Superram or carb? (Sliding)

Carbs either run too rich or too lean somewhere in the band, whereas a computer controlled FI system can adjust things. The loss in overall fuel economy is too great IMO.
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Old Dec 29, 2003 | 08:47 PM
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Default Re: Superram or carb? (Sliding)

If you CAN (emissions and CR consideration) go carb then go carb....it's so simple...AND SO MANY affordable intake changes.
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Old Dec 29, 2003 | 09:04 PM
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Default Re: Superram or carb? (ZD1)

I was wondering the same thing a while back I decided to go with carb. See I got a 84 vette that is the main reason I decided to go with carb. My new engine drop is going on now it will be done in about 2-3 weeks tops. I am going with a 86 suburban engine that has been rebuilt bored dipped and balanced. It has a alum eld intake with 600 cfm eld carb, and I was told that it will be A LOT faster and will be better. But mpg will be bad, its going to suck.
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Old Dec 30, 2003 | 01:58 PM
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Default Re: Superram or carb? (vettespd20)

Are there any carb kit's on market that are
direct replacement for TPI?
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Old Dec 30, 2003 | 02:25 PM
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Default

Carb, yuck.
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Old Dec 30, 2003 | 02:45 PM
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Default Re: (scorp508)

Carb, yuck.
Why?

Do you think that with superram and a good tune I
could make more power than with carb setup?
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Old Dec 30, 2003 | 02:48 PM
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Default Re: (Sliding)

Do you think that with superram and a good tune I
could make more power than with carb setup?
You may not make as much PEAK power, but I am willing to bet you will have much more area under the total power curve and throttle response far better.
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Old Dec 30, 2003 | 03:05 PM
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Default Re: (Sliding)

Peak power #, maybe better. But the torque/power integrals will be better with FI.
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Old Dec 30, 2003 | 03:20 PM
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Default Re: (scorp508)

In next month or two I'll get enough money to order the intake,
so now I'm at starting to turn all possible scenarios in my head.

From what I've learned so far I'm interested in three possible choices:

1. superram ( base, plenum, runners )
2. miniram intake
3. carb setup

I first started modding my engine for superram combo but in
last few months I've seen a lot of different opinions.

Is the superram the best way to go ( since I have LPE 219 cam ...)
or maybe miniram would be as good or even better choice?

Let's say that carb is the last option.

I'm not interested only in peak power.
I want strong street/strip car with 450 FWHP ( if I'll have to stroke it
I will ) and good power range to 6300-6500rpm.
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Old Dec 30, 2003 | 03:24 PM
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Default Re: (Sliding)

The superram will die off before 6500. I spin mine to 6300, but shift at 6000. From 4400 to 6300 the difference on mine in RWHP is only 25 (peaks at 5400).

If you go to a miniram you'll get more RPM, but I would make sure your bottom end is built for the same.
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Old Dec 30, 2003 | 03:30 PM
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Default Intake Choice

Depending on the car's application i.e. street. strip. track . . . . The SR takes the cake on almost all of them. Plenty of torque, power and a nice snappy feel.

Like scorp mentioned, mini-rams are suited for higher rpm, more top end type of packages.

Good luck.
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Old Dec 30, 2003 | 03:33 PM
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Default Re: (Sliding)

For hP
1. mini-ram
2. single plane (carb)
3. dual plane (carb) - although some dual plane will out perform some single planes
4. LT1 intake (at least its cheap)
5. super ram

for rpm stated
1. mini-ram 3500-7000
2. single plane 3500-6500

for drivability (good torque in driving rpms)
1. TPI 2000-4500
2. Superram 2500-5800

Cheap tuning
carb

best complete tune
Programable $$$

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Old Dec 30, 2003 | 03:47 PM
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Default Re: Superram or carb? (Sliding)

I am making over 500HP with a LPE 219 cam, forged internals and a SuperRam.
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Old Dec 30, 2003 | 04:17 PM
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Default Re: Superram or carb? (evitagenone)

I am making over 500HP with a LPE 219 cam, forged internals and a SuperRam.
Could you post some more infos on your engine.

At what rpm do you shift?
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Old Dec 31, 2003 | 03:14 PM
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Default Re: Superram or carb? (Sliding)

My only comment is concerning throttle response of the carb versus FI. The throttle response on my LeMans was better than that of my TPI. A properly tuned carb can have excellent throttle response. But for overall drivability, I would keep the TPI and go with the miniram.
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Old Dec 31, 2003 | 04:00 PM
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Default Re: Superram or carb? (Mr Dave)

I can't say much for the superram/miniram as I have never had them on my car but I switched from TPI to carb and I love it, I have great throttle response and can rev it up all I want, gas mileage is 2 mpg worse but I still need to tune my carb. Good luck.
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Old Dec 31, 2003 | 10:35 PM
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Default Re: Superram or carb? (evitagenone)

I am making over 500HP with a LPE 219 cam, forged internals and a SuperRam.
Hmm I wonder what a Miniram and more cam would run? --> probably 550 hp eh?

The true question is what is enough?

BTW I have Miniram and because I have Fastburn heads could not take advantage of the superram.
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Old Jan 1, 2004 | 02:10 AM
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Default Re: Superram or carb? (ZD1)

Twice now (the last time was a few hours ago) I've posted a link to a site where a guy has posted the actual dyno comparisons of the TPI, siamesed TPI, HSR and MiniRam. They were installed on the same ZZ4 with AFR 190s and a Hot Cam.

He also posted the actual flow numbers of his new 190s, track times, Diacom readings, on and on.

He's got photos posted of the porting he did to the TPI setup, the improvement a Vigilante made in the quarter, etc., etc.

I'm surprised you guys haven't visited that site to see exactly what a MiniRam, HSR, Edelbrock TPI base, etc., does to the power curve Vs a TPI setup; the difference AFR 190s make ("only" 18/19 over L98 aluminum), etc.

Once you see all that he's posted many of your questions will be answered.

Jake


[Modified by JAKE, 1:14 AM 1/1/2004]
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Old Jan 2, 2004 | 11:08 AM
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Default Re: Superram or carb? (JAKE)

some of this decision will depend on your wallet size. The FI set up will be the best for overall driveability. However consider a car and dual plane intake to cost 1/2 the FI.

I have an 85 and went carb. Hood clearance is something to be dealt with, but there's plenty of us here that can help you. If you go with a dual plane and don't oversize the carb your throttle responce will be equal to a FI.
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