I cant get over how sharp your car looks friend. I never imagined a c4 looking so cool when I was a kid and these cars made their first appearance. Yours looks so cool, congrats.....keep it up 👍
love C4s, absolute iconic American sportscar, and a symbol of the 80s. has aged incredibly well, still looks as gorgeous sleek and modern as ever. forward thinking design. it set new standards back then in terms of driving dynamics handling performance leaving contemporary competitors from germany, italy and uk in the dust. yours looks very tasteful. greets from germany
So glad I found your channel, I pick up an 84 vette tomorrow, super clean in and out, and you have all the knowledge I have questions about! Subscribed
Take the honeycomb structure out as well.If you would like to understand think if you crushed the honeycomb to the left or right to where it leaves what it is available through the intake as a restriction with no more holes because the honeycomb is sandwiched together. It is there for people that don't change the air filter as a protective measure to prevent large objects from getting into the engine.Though you haven't sandwiched the honeycomb structure together it is the same restriction.Your going to need to program the newer cfm flow because the engine computer is not using the extra air all your doing is creating a lean environment and also bigger injectors to take advantage of the flow. I'm not talking about massive injectors but a better flowing calculation and I would also like to say you would be surprised at the performance top end speed WILL improve.The fuel pressure regulator I think it would be fun to play with.I don't know the top speed for the L98 TPI 350 guess 150 mph 145mph I have only been 110mph 112mph electriconicly limited.Remember power wise you won't notice anything but an increase in top speed mph you will.
Beautiful Vette ,I have always loved the look of the C4 brother. Very nice and Glad to see she's in good hands. L98 is still a beast in the streets. My 89 Firebird Is still beautiful too , in great shape , turning heads and getting compliments as I know your Vette is too. Long live the C4 and third gen F bodies!
The airfoil was part of the original design of the throttle body; it was left off in actual production, probably for cost savings. I've seen a chip tuner say it is worth 2-3hp on a dyno. It also improves throttle response. There is a plastic one available that has a perfectly smooth surface, which should be better for airflow than the relatively rough casting of the aluminum version. It does not bolt in; it fits snugly in the throttle body and has a pair of clips that are trapped by the intake tube so it can't come loose. As for the airbox mod, I am skeptical because the total area of the factory slots FAR exceeds that of the twin throttle plates already. Plus, I think the Callaway Turbo breathed through the same lid. If it was good enough for that car, it is certainly good enough for the standard engine. The factory design helps prevent water from getting to the filter in wet conditions, as well. Water hitting the cover is guided down the face to drain off the bottom by those louvers. Later versions used different designs to provide more protection than this early one, so that's a real issue. If you use a K&N filter, it's important to clean and re-oil it prior to use. They come drenched in oil from the manufacturer, which restricts air flow and gets sucked into to the intake tube, where it fowls the MAF sensor. The filter element itself is very porous, potentially allowing more dirt to pass through. K&N claims the oil helps trap dirt in the cloth, making it filter air just as well as a paper element. But, if it's oiled-up enough to filter just as well, it's probably just as restrictive, too. K&N claims about 5hp gain, but I've never found any noticeable improvement so I stopped using them many years ago.
Great video....one thought for all mechanics. Use a ratchet to remove and install bolts. The reason is simple, you can break or strip the bolts or assembly. I find that a lot of guys use an impact driver like yours. Old fashion....maybe but hate to repair or replace broken parts.
Sweet vette! I love those magnesium valve covers. Ive powder coat and spray paint restored a couple sets of them...I highly recommend it! They are sharp!
i added the air foil on my l98 and felt a slight increase. i read someplace to sand and polish it to a super smooth finish and i did that before i installed it. they say about 3 or 4 horse and i think thats about right. i gutted out the rear cat and [ that was a freebee ] and installed magnaflo mufflers [about 100 for both ] . those two mods transformed the car. felt like 30 + hp increase and the sound took the place of my lousy radio. nice and mellow till you hit the gas
I replaced that throttle body piece on my LT1 and you could actually feel the difference it wasn't allot but noticeable do you know if they make one of those air box mods for the LT1 I thought about the cold air intake but its like 350 for it. Something to think about with that tire set up you have my 92 at about 75 mph or a little more feels like it all of a sudden drops about 1/2 inch it seems its something to do with airflow pushing the car down on the road so as not to let air catch up underneath providing better traction at high speeds not sure how your tire set up will effect or be affected by it.
@@etwasbauen6615 keep up the good work in the mean time. Super impressive to see you work on it and makes me more confident in my abilities as well. You're doing an amazing job and I can't wait to see how it progresses
Hope to install a stump puller cam in my LT1 C4. Just not a fan of twisting the motor to 5000rpm to get power. Had a nice L98 in a Formula 350 cammed to rock from 2000 to 4000rpm. Great mileage (20mpg) and crazy street power... 50ft burnouts without power braking... fun fun fun with the 2nd gear chirp sometimes turning into a power slide.
Just wondering if anyone has done an actual HP before and after with these upgrades. Theoretically, they MIGHT boost HP, but that could be just wishful thinking. Anyone got any real data?
Dynos are just expensive to be doing them constantly after each upgrade install, unless you have access to one you can use for free people rarely Dyno unless they have da money for It
I was thinking this the whole time. "Does cutting the panel to 'allow for more air' actually improve performance? Does that K&N filter improve performance? Does that throttle body insert improve performance?" All of these seem like Amazon gimmick parts or forum fodder.
Goodjob but is there any proof that these mods will get better horse or throttle respond in action? Also I love K&N oiled filters but heard so many people had issues with Oxygen sensors. Please explain if possible and thanks for video
Probably only under full load there will be a marginal difference. But actually you will never use the car under full load, so there will be no noticeable difference I think.
With all due respect if there isn't any before and after data collection, not even a post installation seat of the pants subjective evaluation how can you say it's worth it. If memory serves me correctly the stock system flows 1237 CFM, at any time the engine only needs about 550 CFM since you have one intake and half an intake valve open at any moment. Just saying it looks cool, but? I should mention I have 1990 C4 Z51 6sp and have won an SCCA So. Cal Autocross championship with the car. Still the video is well done, just would have liked data.
Each to his own ,but I want factory stock OEM on my nice lo mile 96. It sticks like glue in the twisties , I don't get lowering it. Mine has three diff settings available stock. Like headers, more probs than its worth to me. I guess if a car is rough or high miles, mods are an improvement. It hurts nice car value a lot of the time. At least it doesn't take an expert to maintain these cars like newer models and they kinda fun to learn about and work on. I consider 95- 96 to be the ones to own, unless you hate LT motors , then stick to a 91. Under rated cars for sure. Thanks for the C4 content.
I cant get over how sharp your car looks friend. I never imagined a c4 looking so cool when I was a kid and these cars made their first appearance. Yours looks so cool, congrats.....keep it up 👍
Thank you very much!
love C4s, absolute iconic American sportscar, and a symbol of the 80s. has aged incredibly well, still looks as gorgeous sleek and modern as ever. forward thinking design. it set new standards back then in terms of driving dynamics handling performance leaving contemporary competitors from germany, italy and uk in the dust.
yours looks very tasteful.
greets from germany
Hi yes i completely agree, thank you for watching!
So glad I found your channel, I pick up an 84 vette tomorrow, super clean in and out, and you have all the knowledge I have questions about! Subscribed
Thats Great! Congratulations . Thanks for subscribing !
Your car is stunning and you can tell you are really in love with it. Congrats , I have a 93 modded up pretty good as well. Awesome retro cars 👍
Take the honeycomb structure out as well.If you would like to understand think if you crushed the honeycomb to the left or right to where it leaves what it is available through the intake as a restriction with no more holes because the honeycomb is sandwiched together. It is there for people that don't change the air filter as a protective measure to prevent large objects from getting into the engine.Though you haven't sandwiched the honeycomb structure together it is the same restriction.Your going to need to program the newer cfm flow because the engine computer is not using the extra air all your doing is creating a lean environment and also bigger injectors to take advantage of the flow. I'm not talking about massive injectors but a better flowing calculation and I would also like to say you would be surprised at the performance top end speed WILL improve.The fuel pressure regulator I think it would be fun to play with.I don't know the top speed for the L98 TPI 350 guess 150 mph 145mph I have only been 110mph 112mph electriconicly limited.Remember power wise you won't notice anything but an increase in top speed mph you will.
Beautiful Vette ,I have always loved the look of the C4 brother. Very nice and Glad to see she's in good hands.
L98 is still a beast in the streets. My 89 Firebird Is still beautiful too , in great shape , turning heads and getting compliments as I know your Vette is too.
Long live the C4 and third gen F bodies!
Thank you i appreciate that! Yes you have to love the 80s cars for sure!
The airfoil was part of the original design of the throttle body; it was left off in actual production, probably for cost savings. I've seen a chip tuner say it is worth 2-3hp on a dyno. It also improves throttle response. There is a plastic one available that has a perfectly smooth surface, which should be better for airflow than the relatively rough casting of the aluminum version. It does not bolt in; it fits snugly in the throttle body and has a pair of clips that are trapped by the intake tube so it can't come loose.
As for the airbox mod, I am skeptical because the total area of the factory slots FAR exceeds that of the twin throttle plates already. Plus, I think the Callaway Turbo breathed through the same lid. If it was good enough for that car, it is certainly good enough for the standard engine. The factory design helps prevent water from getting to the filter in wet conditions, as well. Water hitting the cover is guided down the face to drain off the bottom by those louvers. Later versions used different designs to provide more protection than this early one, so that's a real issue.
If you use a K&N filter, it's important to clean and re-oil it prior to use. They come drenched in oil from the manufacturer, which restricts air flow and gets sucked into to the intake tube, where it fowls the MAF sensor. The filter element itself is very porous, potentially allowing more dirt to pass through. K&N claims the oil helps trap dirt in the cloth, making it filter air just as well as a paper element. But, if it's oiled-up enough to filter just as well, it's probably just as restrictive, too. K&N claims about 5hp gain, but I've never found any noticeable improvement so I stopped using them many years ago.
Cool. thanks
I have agree, GM could have saved money by manufacturing the cover open, but they didn't. My advice leave it alone.
Lol. Even had to line up the lettering on the tires
Great video....one thought for all mechanics. Use a ratchet to remove and install bolts. The reason is simple, you can break or strip the bolts or assembly. I find that a lot of guys use an impact driver like yours. Old fashion....maybe but hate to repair or replace broken parts.
Thank you. Great point. i actually use a drill instead of an impact driver. Thanks
Might get similar rims, seen some BBS that I liked for mine
Sweet vette! I love those magnesium valve covers. Ive powder coat and spray paint restored a couple sets of them...I highly recommend it! They are sharp!
Thats a good idea!
@@etwasbauen6615WhTs ur gearing 3.07 or 2.59
i added the air foil on my l98 and felt a slight increase. i read someplace to sand and polish it to a super smooth finish and i did that before i installed it. they say about 3 or 4 horse and i think thats about right. i gutted out the rear cat and [ that was a freebee ] and installed magnaflo mufflers [about 100 for both ] . those two mods transformed the car. felt like 30 + hp increase and the sound took the place of my lousy radio. nice and mellow till you hit the gas
Very cool. They are good modifications to do!
Probably the best looking c4 out there
Thanks! I appreciate that!
Do you have a link to the air foil..
Thanks GREAT videos
Etwas
I have a question on the smog delete kit. Do they make them for a 79 C3?
Do you have to have the cambered tucked wheels????
I got rid of the factory air box and put a k and n sock on the throttle body. But I have an after market functional hood. 1991 convertible
Of course mine is MAP not MAF
Can I get info on your wheels? Type, size, offset.
You didn't have to oil the filter? or did it come pre-oiled?
3 videos Man thanks for your effort. Kind of curious why you haven't done a cold air intake getting rid of the factory air intake
What rims are you running
What kind of wheels do you have on it.. and size?🤙🏼
Keep it rollin, very valuable tips here.
Thanks! I appreciate it! Theres more to come!
I have a 1986, i CNC my air box . Remove your smog pump and etc. makes a big difference.
Cool! yes those little things go along way!
I replaced that throttle body piece on my LT1 and you could actually feel the difference it wasn't allot but noticeable do you know if they make one of those air box mods for the LT1 I thought about the cold air intake but its like 350 for it. Something to think about with that tire set up you have my 92 at about 75 mph or a little more feels like it all of a sudden drops about 1/2 inch it seems its something to do with airflow pushing the car down on the road so as not to let air catch up underneath providing better traction at high speeds not sure how your tire set up will effect or be affected by it.
Thank you, thats cool. I havent had any issues with my tires so far.
I also replaced the "accordion" intake tube with a smooth one.
Thats a good idea!
Have you seen/What are your thoughts on the Vortex Ram Intake System?
Im not sure, i havent looked into it.
@@etwasbauen6615 keep up the good work in the mean time. Super impressive to see you work on it and makes me more confident in my abilities as well. You're doing an amazing job and I can't wait to see how it progresses
Hope to install a stump puller cam in my LT1 C4. Just not a fan of twisting the motor to 5000rpm to get power. Had a nice L98 in a Formula 350 cammed to rock from 2000 to 4000rpm. Great mileage (20mpg) and crazy street power... 50ft burnouts without power braking... fun fun fun with the 2nd gear chirp sometimes turning into a power slide.
Just wondering if anyone has done an actual HP before and after with these upgrades. Theoretically, they MIGHT boost HP, but that could be just wishful thinking. Anyone got any real data?
Very good point. You would need to do a before and after dyno pull for accuracy .
Dynos are just expensive to be doing them constantly after each upgrade install, unless you have access to one you can use for free people rarely Dyno unless they have da money for It
I was thinking this the whole time. "Does cutting the panel to 'allow for more air' actually improve performance? Does that K&N filter improve performance? Does that throttle body insert improve performance?" All of these seem like Amazon gimmick parts or forum fodder.
Great video and very informative...! Will these parts work on a C4 1995 VETTE?
These ones are different but i believe they do have ones available for it. Thanks
I saw ur tictok and now u pop up on youtube nice
Thanks
Goodjob but is there any proof that these mods will get better horse or throttle respond in action? Also I love K&N oiled filters but heard so many people had issues with Oxygen sensors. Please explain if possible and thanks for video
Thanks for watching, the companies that make the parts claim performance gains but unless the car is on a Dyno its hard to really tell.
Probably only under full load there will be a marginal difference. But actually you will never use the car under full load, so there will be no noticeable difference I think.
I noticed a difference with both just pulling out of the driveway.
@@ranbymonkeys2384 Sure. If you believe in it you will notice giant differences...
@@NetzKanal right.....
I need wheel and tire specs please 🙏
They are 18x9.5 5x120 35mm offset Alzor wheels for a bmw.
@@etwasbauen6615 what are the tire specs?
nice vette, what rims are you on?
Thank you !they are Alzor wheels. 18x9.5
With all due respect if there isn't any before and after data collection, not even a post installation seat of the pants subjective evaluation how can you say it's worth it. If memory serves me correctly the stock system flows 1237 CFM, at any time the engine only needs about 550 CFM since you have one intake and half an intake valve open at any moment.
Just saying it looks cool, but?
I should mention I have 1990 C4 Z51 6sp and have won an SCCA So. Cal Autocross championship with the car.
Still the video is well done, just would have liked data.
Thanks
Basically if you have money to throw away then it's "worth it"
What year is this Corvette l98 ?
Hi its 1985.Thanks
Looks good but i like stock
thanks
cant believe the KN air filter went up $25 in a year... smh
Each to his own ,but I want factory stock OEM on my nice lo mile 96. It sticks like glue in the twisties , I don't get lowering it. Mine has three diff settings available stock. Like headers, more probs than its worth to me. I guess if a car is rough or high miles, mods are an improvement. It hurts nice car value a lot of the time. At least it doesn't take an expert to maintain these cars like newer models and they kinda fun to learn about and work on. I consider 95- 96 to be the ones to own, unless you hate LT motors , then stick to a 91. Under rated cars for sure. Thanks for the C4 content.
Thats a great car! Thank you for watching!
blister pack racers, unless youre removing metal you arent making horsepower. The air filter and air horn make ZERO horsepower.
Sorry dude but those wheels belong on a ricer. No offence.
Thanks, non taken.
@@etwasbauen6615 nope those look like bbs racing not rice rims.
What size and dimensions are your wheels???? Thank you, Troy