Another new CFI Intake
Le Mans Master
Joined: Nov 2009
Posts: 6,882
Likes: 235
From: Bangkok, Thailand
I was going to stay out of it but the 85 TPI only yielded what 235 hp over the 84 CFI 205hp which has been proven time and time again that a port job to increase the intake ports to the same size as the 85 TPI boost the hp to similar performance. So what makes the aftermarket Renegade any less desirable than the Edelbrock equivalent for the TPI?
That's ok though - like I said, in a little while the C4 gang will be wondering where all these zippy CrossFires came from
Team Owner
Joined: Dec 2007
Posts: 20,974
Likes: 261
Unless they have an HSR, and other goodies, because the stock tpi is a pointless foundation to build off of.I give someone credit, if they want to stay true to the CFI thing, or just don't want to screw with the other change overs involved, but until there are numbers posted by cars on a dyno with this intake on enough times for some consistency, there will be skeptics.
Does the renegade flow as much as an after market LTR set up? Or does it need to be ported for that?
It is an improvement, and that is all that matters, but I doubt it will be able to battle with HSR intakes etc
Safety Car
Joined: Oct 2008
Posts: 4,689
Likes: 4
From: Yucaipa CA
So you are going to spend what 600 bucks or so on this renegade and to what maybe be able to beat a stock TPI. Better off buying a miniram and definitely beat a TPI.
Your wet system will never have the potential of port injection simple as that. Anyone who has TPI and wanted performance has already done changes so your renegade won't stand a chance against them anyways.
I say leave your CFI stock and enjoy it for what it is. a engine that can beat 305 LG-4. Because even a 305 TPI will put the hurt on a 350 cfi .... sorry but it is the truth.
Your wet system will never have the potential of port injection simple as that. Anyone who has TPI and wanted performance has already done changes so your renegade won't stand a chance against them anyways.
I say leave your CFI stock and enjoy it for what it is. a engine that can beat 305 LG-4. Because even a 305 TPI will put the hurt on a 350 cfi .... sorry but it is the truth.
Instructor
Joined: May 2005
Posts: 184
Likes: 13
I don't post that often...but, I think people forget that the 84 was engineered about 28 years ago. The 84 is better in every respect then any Vette made within decade before it was sold (I have a 74 so I know). Is it as good as a later c4 or a C5, of course not. But look at what else was for sale in 84, judge it in the context of when it was new not 26 years later. When it comes to modding an 84, why not? To say it is not worth it because a TPI is better is silly. Logic would then say why mod a TPI when you could mod an LT1, but then why do an LT1 when you could mod an LT4, or LS1, or LS3. The point is in trying to get the best performance out of the platform you have. If not, then we should all quit and just buy a ZR1. I really enjoy my 74, 84, and my 08. They are all different cars and each has their own appeal. I say the 84 is just as good a candidate to mod as any other Vette ever made. I still drive my 84 often and I have had zero problems with the CFI system. If there was no 84, there would be no 2011, its all about the evolution.
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Your wet system will never have the potential of port injection simple as that. Anyone who has TPI and wanted performance has already done changes so your renegade won't stand a chance against them anyways.
I say leave your CFI stock and enjoy it for what it is. a engine that can beat 305 LG-4. Because even a 305 TPI will put the hurt on a 350 cfi .... sorry but it is the truth.
I say leave your CFI stock and enjoy it for what it is. a engine that can beat 305 LG-4. Because even a 305 TPI will put the hurt on a 350 cfi .... sorry but it is the truth.
PLEASE EXPLAIN how or why a "wet system will never have the potential of port injection simple as that".
PLEASE EXPLAIN, my 305 CFI Trans Am that ran 14.50's @ 95....isn't that right in the stock TPI "350 TPI" range?
PLEASE EXPLAIN runner/port lengths and how that effects an engine's tq curve, then talk to us about how that relates to Minirams, CFI, and TPI.
You won't because you can't. That right there is plenty of evidence that you should STFU before you make yourself look even dumber than you already have.
Last edited by Tom400CFI; Jun 22, 2010 at 01:36 PM.
Melting Slicks
Joined: Jan 2005
Posts: 2,658
Likes: 4
From: Clifton Park NY
There's always one in the crowd!..
As a CFI based platform ran 13.3@99, think that would put a lot of hurt on a stock L98 and LT1's. Heck what does a stockish L98 or LT1 with just a miniram or something run?
As you know, I changed mine this year from CFI to HSR, curious to see if its any faster than the CFI based platform or not. Woudn't it be funny if my gain was only minimal?
As a CFI based platform ran 13.3@99, think that would put a lot of hurt on a stock L98 and LT1's. Heck what does a stockish L98 or LT1 with just a miniram or something run?
As you know, I changed mine this year from CFI to HSR, curious to see if its any faster than the CFI based platform or not. Woudn't it be funny if my gain was only minimal?
Le Mans Master
Joined: Nov 2009
Posts: 6,882
Likes: 235
From: Bangkok, Thailand
There's always one in the crowd!..
As a CFI based platform ran 13.3@99, think that would put a lot of hurt on a stock L98 and LT1's. Heck what does a stockish L98 or LT1 with just a miniram or something run?
As you know, I changed mine this year from CFI to HSR, curious to see if its any faster than the CFI based platform or not. Woudn't it be funny if my gain was only minimal?
As a CFI based platform ran 13.3@99, think that would put a lot of hurt on a stock L98 and LT1's. Heck what does a stockish L98 or LT1 with just a miniram or something run?
As you know, I changed mine this year from CFI to HSR, curious to see if its any faster than the CFI based platform or not. Woudn't it be funny if my gain was only minimal?
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Melting Slicks
Joined: Jan 2005
Posts: 2,658
Likes: 4
From: Clifton Park NY
The swap really isn't bad. But at this point my ecm would have to go back to the stock ecm, which I didn't use when running the 13.3. At that point I was using the EBL/Flash ecm. Wiring wise it would only mean making the change from 8 injectors back to 2. Otherwise really no big deal.
Only other problem is it wouldn't be apples to apples since i also changed the head and cam since the 13.3 as well.
but I'm gonna laugh if this car doesn't do better..
Only other problem is it wouldn't be apples to apples since i also changed the head and cam since the 13.3 as well.
but I'm gonna laugh if this car doesn't do better..
Le Mans Master
Joined: May 2006
Posts: 9,226
Likes: 9
From: Irvine Ca
My '84 is bone stock. If I get a career change that I looking to get July 1st. I'd be more than happy to dyno a stock '84 with 98k miles......Then do incremental Dyno runs to quantify the actual changes.
We would have to agree to the Mod order or "Steps". I'd think that we would have to port the heads and intake that are stock...add the proper exhaust.....Then Dyno...THEN add the Renegade intake to see if there is a change from what you can get from porting a stocker.
If the change is easily noted, this thread should die......
Hope that I get this new position on Thursday.
We would have to agree to the Mod order or "Steps". I'd think that we would have to port the heads and intake that are stock...add the proper exhaust.....Then Dyno...THEN add the Renegade intake to see if there is a change from what you can get from porting a stocker.
If the change is easily noted, this thread should die......
Hope that I get this new position on Thursday.
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
My '84 is bone stock. If I get a career change that I looking to get July 1st. I'd be more than happy to dyno a stock '84 with 98k miles......Then do incremental Dyno runs to quantify the actual changes.
We would have to agree to the Mod order or "Steps". I'd think that we would have to port the heads and intake that are stock...add the proper exhaust.....Then Dyno...THEN add the Renegade intake to see if there is a change from what you can get from porting a stocker.
If the change is easily noted, this thread should die......
Hope that I get this new position on Thursday.
We would have to agree to the Mod order or "Steps". I'd think that we would have to port the heads and intake that are stock...add the proper exhaust.....Then Dyno...THEN add the Renegade intake to see if there is a change from what you can get from porting a stocker.
If the change is easily noted, this thread should die......
Hope that I get this new position on Thursday.
You might consider comming to THIS.
