New intake for crossfire = more HP!!!!

[nelson84]

The way you guys are talking about delivery dates, I'd be out there removing the manifold & scrapin old gaskets.

Thats a good idea, I should get out there and get to work on it, while the intak is off I could do some serious detailing, make it look real sharp.

 

[nelson84]

No they haven't asked but I sent my address to them about a month ago. Long before they announced they were releasing some manifolds early. I was told I'm #7 on their pre-buy list in the very beginning and they're probably going to send out 6 of them. That would be my luck. But there's the very real possibility some of the very early pre-buyers before us may have backed out of the deal; maybe losing their patience or selling their cars, or? So we might have gotten bumped up on their list. I sure hope so anyway.

I think I better email them and see where I'm on the list.

 

[toobroketoretire]

The way you guys are talking about delivery dates, I'd be out there removing the manifold & scrapin old gaskets.

I'd like to do that but I don't dare chance it. There's been too many setbacks during this past year. And as my '82 is my daily driver, I need it running. I do have a 1973 3/4 ton Chevrolet pickup as a backup but it only gets 8 mpg. So I'm going to wait until I have the manifold in my hands before I tear into my '82.

 

[WillC4]

The theory in it doesnt sound bad, but it is quite expensive. I know that i can get professional porting the intake manifold on my LT1 for $200, and it would exponentially flow better. But im getting off subject, i am glad to see a company is devoted to the crossfire engine, i know it has caught alot of flak.

 

[toobroketoretire]

The theory in it doesnt sound bad, but it is quite expensive. I know that i can get professional porting the intake manifold on my LT1 for $200, and it would exponentially flow better. But im getting off subject, i am glad to see a company is devoted to the crossfire engine, i know it has caught alot of flak.

The Renegade has caught a LOT of flak from a few people who have ported their Crossfires. The problem with porting a Crossfire is you can only remove a little bit of material from the inside of it's tiny runners. I can see the possibility of increasing the air flow by maybe 10-15% but that's all. The Renegade will flow double the air right out of the box, and it makes porting a Crossfire a very time consuming proposition with little gain. So I feel the $460 price of the Renegade is well worth it.

 

[WillC4]

The Renegade has caught a LOT of flak from a few people who have ported their Crossfires. The problem with porting a Crossfire is you can only remove a little bit of material from the inside of it's tiny runners. I can see the possibility of increasing the air flow by maybe 10-15% but that's all. The Renegade will flow double the air right out of the box, and it makes porting a Crossfire a very time consuming proposition with little gain. So I feel the $460 price of the Renegade is well worth it.

I stand corrected, i honestly dont know too much about the crossfire injection system other then two throttle bodies which got me thinking, "Does that even flow well?" HAHA no insult intended in that quote.

 

[toobroketoretire]

I stand corrected, i honestly dont know too much about the crossfire injection system other then two throttle bodies which got me thinking, "Does that even flow well?" HAHA no insult intended in that quote.

The Crossfire throttle bodies flow about 235 cfm each for a total of 570 cfm. So they're adequately sized for a street 350" engine. But the pitiful Crossfire manifold only flows about 475 cfm. Way short of what a 350" engine needs for revs over 4000 rpm. The Crossfire Injection system looks pretty cool but it doesn't perform well at all on a 350" engine. It works okay for the smaller 305" however. The Renegade will flow 1000 cfm right out of the box, so it will easily supply an adequate amount of air for engines up to 400" revving 6000 rpm.

 

[nelson84]

how much more power would you get with 1.6 rockers with the renegade?
:confused

 

[toobroketoretire]

how much more power would you get with 1.6 rockers with the renegade?
:confused

Not a lot. Maybe 10 if you're lucky. The engines that benefit the most from the 1.6 rockers are those with low lift stock cams.

 

[nelson84]

Not a lot. Maybe 10 if you're lucky. The engines that benefit the most from the 1.6 rockers are those with low lift stock cams.

Check your private messages.

 

[toobroketoretire]

Check your private messages.

How do I do that? Heck, just e-mail me.

 

[nelson84]

How do I do that? Heck, just e-mail me.

Just click on the private messages near your name, top right corner.

 

[catbert]

You guys with money on the line are a lot more patient than I'd be. If they held my money for a year, they'd get a visit my Uncle Vinnie and Uncle Nunzio.

 

[toobroketoretire]

You guys with money on the line are a lot more patient than I'd be. If they held my money for a year, they'd get a visit my Uncle Vinnie and Uncle Nunzio.

According to DCS the wait is almost over. I sure hope that's true.

 

[toobroketoretire]

You guys with money on the line are a lot more patient than I'd be. If they held my money for a year, they'd get a visit my Uncle Vinnie and Uncle Nunzio.

I think it would be real nice if DCS shipped them to us for free after holding our money for an entire year.

 

[Hib Halverson]

(snip)

Who is Dave Emmanuel? Never heard of him.

Dave Emmanuel is a long-time, professional technical writer who has specialized in Corvette content.

He's been writing for various Corvette magazines and other publications in the automotive enthusiast media for about 25 years.

He's also written a number of books, both specific to Corvettes and covering other, wider-focused, enthusiast automotive subjects.

 

[toobroketoretire]

Dave Emmanuel is a long-time, professional technical writer who has specialized in Corvette content.

He's been writing for various Corvette magazines and other publications in the automotive enthusiast media for about 25 years.

He's also written a number of books, both specific to Corvettes and covering other, wider-focused, enthusiast automotive subjects.

Then hopefully Dave Emmanuel can test one of these Renegades and write an article on it. So far the only thing I've seen written on it was by DCS right after they dyno tested their welded-up prototype back in March 2009. So I'd like to see someone else's assessment on it.

 

[nelson84]

Then hopefully Dave Emmanuel can test one of these Renegades and write an article on it. So far the only thing I've seen written on it was by DCS right after they dyno tested their welded-up prototype back in March 2009. So I'd like to see someone else's assessment on it.

I will write you an article and post it everywhere, the good the bad and the ugly, I hope its all good.hnoes

 

[toobroketoretire]

I will write you an article and post it everywhere, the good the bad and the ugly, I hope its all good.hnoes

As the Renegade's runners are considerably larger than those of a Crossfire, it will cause a decrease of low end torque. But as the 700R4's have such a low starting gear, the loss of felt low end torque will be very small. The Renegade will certainly shine at revs above 4000 rpm, and that's exactly what I want. Mid to top end breathing. Because other than starting off, my engine is usually revving at least 2000 rpm. Well above where the slight loss of low end torque will be. That's the whole reason I ordered a Renegade. DCS also claimed an increase of fuel mileage by up to 2 miles per gallon. I personally can't see any logical reason why fuel mileage would get better by simply increasing the runner's internal volume. I would like to know how DCS came to that conclusion unless they actually drove their test car a given distance at exactly the same speed and time of day TWICE and then compared the car's fuel mileage for both of those runs. If DCS really did see an increase in fuel mileage, I would attribute the increase to the 3 additional degrees they gave the ignition timing.

 

[nelson84]

As the Renegade's runners are considerably larger than those of a Crossfire, it will cause a decrease of low end torque. But as the 700R4's have such a low starting gear, the loss of felt low end torque will be very small. The Renegade will certainly shine at revs above 4000 rpm, and that's exactly what I want. Mid to top end breathing. Because other than starting off, my engine is usually revving at least 2000 rpm. Well above where the slight loss of low end torque will be. That's the whole reason I ordered a Renegade. DCS also claimed an increase of fuel mileage by up to 2 miles per gallon. I personally can't see any logical reason why fuel mileage would get better by simply increasing the runner's internal volume. I would like to know how DCS came to that conclusion unless they actually drove their test car a given distance at exactly the same speed and time of day TWICE and then compared the car's fuel mileage for both of those runs. If DCS really did see an increase in fuel mileage, I would attribute the increase to the 3 additional degrees they gave the ignition timing.

I guess if the low end torque is not enough with the stock gears, I will have to see what others are running and see if 3.54 or 3.73 will be the best for a basically stock crossfire.