upper rpm intakes
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Joined: Nov 2005
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upper rpm intakes
ive noticed that after 4000 rpm my car falls flat on its face, i want to get rid of this problem, it would be nice 2 have my car pulling hard all the way to 6500-7000 rpm. what would u recommend for this? what links/websites should i try? again, thanks 4 your time
Le Mans Master
Joined: Jan 2002
Posts: 9,036
Likes: 13
From: Edmonton AB
The Mini Ram by TPIS ought to see you through to
7,000 RPM.
If you are a little adventurous, you can try the
modified LT1/LT4 manifold.
If you do not need to get quite to 7,000, the
Holley Stealth Ram will do well to maybe 6,500.
BUT, an unmodified Stealth Ram will not
fit under a stock hood. You could add a scoop,
change the hood or hope that some day someone
successfully modifies the HSR so that it fits.
Then as already mentioned there is the LPE/Accel
Super Ram. A pain to install but revered by many.
How're you coming along with the 'Search' feature?
.
7,000 RPM.
If you are a little adventurous, you can try the
modified LT1/LT4 manifold.
If you do not need to get quite to 7,000, the
Holley Stealth Ram will do well to maybe 6,500.
BUT, an unmodified Stealth Ram will not
fit under a stock hood. You could add a scoop,
change the hood or hope that some day someone
successfully modifies the HSR so that it fits.
Then as already mentioned there is the LPE/Accel
Super Ram. A pain to install but revered by many.
How're you coming along with the 'Search' feature?
.
Drifting
Joined: May 2002
Posts: 1,581
Likes: 2
From: The Motor City
Originally Posted by toronto_85_2_nv
The mini ram by TPIS sounds like something i want
You will hate the car if all you do is put the MiniRam on. To take full advantage of the MiniRam, you'll need to change heads, cam, rear gears, and have the ECM properly tuned for the setup (you'd also want to consider a full-exhaust swap too). It's a lot of work, and a lot of money.
Here's a discussion on this forum that might shed some light:
http://forums.corvetteforum.com/show...am&forum_id=48
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Why do you want to spin to 7000?
ricer rev range.
Much over 6000 and you are starting to get into expensive parts to handle the revs.
V8s make bottom end power , buy a SuperRam and shift at 5500 , save yourself some money AND go really fast
ricer rev range.
Much over 6000 and you are starting to get into expensive parts to handle the revs.
V8s make bottom end power , buy a SuperRam and shift at 5500 , save yourself some money AND go really fast
Thread Starter
Advanced
Joined: Nov 2005
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Originally Posted by rodj
Why do you want to spin to 7000?
ricer rev range.
Much over 6000 and you are starting to get into expensive parts to handle the revs.
V8s make bottom end power , buy a SuperRam and shift at 5500 , save yourself some money AND go really fast
ricer rev range.
Much over 6000 and you are starting to get into expensive parts to handle the revs.
V8s make bottom end power , buy a SuperRam and shift at 5500 , save yourself some money AND go really fast
nascars rev much past 7000 rpm, nothing ricer about a nascar is there? i didnt think so
Le Mans Master
Joined: Jan 2002
Posts: 9,036
Likes: 13
From: Edmonton AB
What rodj might be saying is that the imports
have different bore/stroke ratios and are thus
better suited for higher RPM operation out of
the box.
His advice is sound. The small block is a great
engine but has its limitations. You can exceed
these OEM limitations but it begins to get
expensive FAST. When you look at the big
picture (overall car value) that approach doesn't
add up for most owners.
.
have different bore/stroke ratios and are thus
better suited for higher RPM operation out of
the box.
His advice is sound. The small block is a great
engine but has its limitations. You can exceed
these OEM limitations but it begins to get
expensive FAST. When you look at the big
picture (overall car value) that approach doesn't
add up for most owners.
.
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Race Director
Joined: Oct 2005
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From: Rolla Missouri
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Originally Posted by toronto_85_2_nv
nascars rev much past 7000 rpm, nothing ricer about a nascar is there? i didnt think so
Drifting
Joined: May 2002
Posts: 1,581
Likes: 2
From: The Motor City
Originally Posted by toronto_85_2_nv
nascars rev much past 7000 rpm, nothing ricer about a nascar is there? i didnt think so
Besides, NASCAR engines are good for some practice and qualifying runs and one race. Then they're pulled, stripped down, and completely rebuilt. So unless you're independantly wealthy, spooling a stock L98 past 7000 RPM on a regular basis will be the fastest way to engine failure.
Melting Slicks
Joined: Nov 2000
Posts: 2,469
Likes: 6
From: Winchester Ontario
If you want to keep it basic bolt ons instead of rebuilding the entire motor, I think the MiniRam probably isn't the way to go. I have a super ram and love it.
One route you could take is to buy an LT4 intake and heads and have them ported out. Throw a good set of headers on it and you'd do ok. I think if you want power, well...power to 7000 RPMs or even 6500 RPMs you'd need to change cam as well.
One route you could take is to buy an LT4 intake and heads and have them ported out. Throw a good set of headers on it and you'd do ok. I think if you want power, well...power to 7000 RPMs or even 6500 RPMs you'd need to change cam as well.
Race Director
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
If you want a reliable Corvette that regularly revs to 7K get a ZR1. I bet it will be much cheaper in the long haul than modding a SBC and keeping it in one piece. It takes more than a good crank and rods for the bottom end to hold up at 7K for any amount of time. For example I bet the stock lubrication system is not ideal for prolonged runs at 7K and then there is the valve train.......
JMHO
Mike
JMHO
Mike
Drifting
Joined: Mar 2002
Posts: 1,251
Likes: 2
From: Thomson Georgia
Another good intake is the Accel Pro Ram, I've made good power with them and the low end loss is no where near the mini. Good distribution and a nos plate works nice on them.
The Stealth is another good intake, about midways between the stock and the lt intakes on torque. Modded plenum or cowl hood is a neccessity.
Johnny
The Stealth is another good intake, about midways between the stock and the lt intakes on torque. Modded plenum or cowl hood is a neccessity.
Johnny
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
nascars rev much past 7000 rpm, nothing ricer about a nascar is there? i didnt think so
I see the brothers concur with my opinion;I rest my case.
I you are not interested in honest opinions from people more experienced on a subject than you ,
WHY ask the question?
I see the brothers concur with my opinion;I rest my case.
I you are not interested in honest opinions from people more experienced on a subject than you ,
WHY ask the question?
Burning Brakes
Joined: Nov 2004
Posts: 781
Likes: 0
There is no cheap (or easy) way to make worthwhile power gains on a stock 250 HP engine (other than NITROUS). If you want to smoke your tires and pull hard in 1st gear, build a torquey STREET car. If you want to make power all the way to your car's top speed limit (even if you don't always 'need' it), get rid of the TPI style induction, and upgrade your heads and cam, as well. There is a reason GM went to the LT1 (and the Corvette got priority) using an intake that, ironically, resembled the TPIS Miniram.
A NASCAR engine makes power above 7,000 RPM because it has to support 13.5-14.5:1 compression with only 358 cubic inches, not because it has a short runner intake manifold.
A NASCAR engine makes power above 7,000 RPM because it has to support 13.5-14.5:1 compression with only 358 cubic inches, not because it has a short runner intake manifold.
Melting Slicks
Joined: Mar 1999
Posts: 2,535
Likes: 2
From: Rochester NY
listen to those who knows what they are talking about man. It take a lot of $$ to build a 7000rpm motor and last. If it cheap and easy to do, every one here would have a 7000rpm reving motor. Would'nt you think so?
Thread Starter
Advanced
Joined: Nov 2005
Posts: 55
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isnt the point of a forum to share information? apparently the people responding to my thread (not all just some) think they are comedians with their smart assed responses....all im asking is what i can do to get more power in upper rpm's.....instead of me getting responses of what i can do, or people simply telling me it isnt possible unless i spend mega cash (and what i have 2 do), im getting responses that are less than amusing
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
"all im asking is what i can do to get more power in upper rpm's....."
You have been given the answers.
It is just that your requested rev range is totally impractical without lottsa money and then you are going to have a car that be a pig as a street car.
Nascars don't go out to buy burgers or stop at traffic lights.With the right parts you can build big , reliable HP without turning big revs.
Check out the ETs / Hp of some of the others on this forum , and they are steetable.
You have been given the answers.
It is just that your requested rev range is totally impractical without lottsa money and then you are going to have a car that be a pig as a street car.
Nascars don't go out to buy burgers or stop at traffic lights.With the right parts you can build big , reliable HP without turning big revs.
Check out the ETs / Hp of some of the others on this forum , and they are steetable.
Race Director
Joined: Feb 2004
Posts: 12,518
Likes: 19
Originally Posted by toronto_85_2_nv
ive noticed that after 4000 rpm my car falls flat on its face, i want to get rid of this problem, it would be nice 2 have my car pulling hard all the way to 6500-7000 rpm. what would u recommend for this? what links/websites should i try? again, thanks 4 your time