My 04 Terminator Cobra Gets a 2.76 Billetflow Supercharger Pulley & Idler Set!!

[@dannyjohnsonsgarage]

Very good video. I really enjoyed watching it after work today on my Friday. I’m glad you’re smart enough not to go full boost without the tune.

[@Lethal_Venom]

Yeah I like my pistons and rods in once piece lol. The Dyno went well. You're on my FB so you will probably see the numbers but wow am I happy with it.

[@tomkjr1]

I look forward to your dyno session! Not to mention the drive home afterwards!!

[@Lethal_Venom]

Dyno was today actually. The ride home was something like...OH MY FUCKING GOD!!!..... Dyno Video drops Thursday next week

[@jakemckee9303]

Man you gotta do a video with how it feels afterwards! Enjoy your time in her now winter is coming!

[@Lethal_Venom]

Jake McKee oh that’s definitely happening 😁

[@JordanSVT]

Definitely a very good upgrade to do on these cars. I'll guess 475whp if its gonna be cold.

[@Lethal_Venom]

Good guess, Video for the dyno will be out thursday next week

[@TheMGChannel]

Great video brother, happy to see the cobra with the 2.76 pulley, great choice. Looking forward to the Dyno day, I took mine to the Dyno today and made two pulls. Stay tuned 👍🏻

[@Lethal_Venom]

OH BOY!! Can't wait to see your numbers as well!!! My dyno video is dropping on Thursday next week

[@TheMGChannel]

Lethal Venom Nice man, I can’t wait 👍🏻 my video is coming tonight. 🙏🏻 Both cars probably will put down similar power, You have a smaller pulley than me so you might actually put down a bit more power than mine. How much boost are you running with the new 2.76 pulley?

[@Lethal_Venom]

The MG Channel it hit 12.9 PSI, blower would just not put out anything more without being ported. Fuel pumps are maxed out. Deciding what to do for the next round of mods for next year. Winter is coming quick here

[@carmob7499]

Nice install ,THX for sharing .. I hope you make 500 rwhp..

[@Lethal_Venom]

It made some really good numbers. Its all in Thursday's video. 500 is a lofty goal with this set up with an unported blower

[@kennethdurbin3385]

Got my new heat exchanger installed yesterday and my puller finally arrived. Gonna be installing the new idlers and pulley today. I'll be watching this video the entire time so I don't break it. Lol.

[@Lethal_Venom]

Haha. Best of luck. Car will be totally different once it’s done and tuned

[@kennethdurbin3385]

Yeah can't wait. My dyno appt is Tuesday, weather permitting. I went ahead and drained the coolant from the radiator when I did the heat exchanger yesterday as well. Pretty sure it was the same coolant that was in it when it left the Ford plant. Stripped out the plastic drain plug doing it but managed to get it closed again. Had to let it idle a long time with the cap off to get it burped and a good bit of coolant came out the tank and probably down on the alternator. Hope it doesn't fry it down the road. Not sure if it's right but the heat exchanger and radiator only took about a gallon and a 1/4 of the 2nd one to fill both. I didn't flush the system, just drained and filled. Did your idlers come with allen head hex bolts? All mine did as well as the bracket. Guessing I could reuse the stock bolts? I bought some blue threadlocker too.

[@Lethal_Venom]

@@kennethdurbin3385 my snub idler came with a bolt and the rest of the idlers I reused the stock bolts

[@kennethdurbin3385]

@@Lethal_Venom Metco sent allen hex bolts for everything. Hoping I can use the stock bolts for it all. That snub idler looks like it may take a longer bolt than the stock one but will find out shortly. Just swapped out the stock battery for a Red Optima. Figured it was the same battery from 18yrs ago and it idles better now and fires right up. Before it cranked 3-4 times.

[@Lethal_Venom]

@@kennethdurbin3385 sounds pretty good. Mine are the billetflow so I’m not familiar with how metco does it. Should be able to reuse the stock bolts the idlers are the same size between both company’s

[@SVTAdamSVT]

Those billetflow pieces look great... I honestly think that cooled down you will be around 463rw

[@Lethal_Venom]

Nice guess, Dyno video drops Thursday next week

[@OH3REDFIRESVT]

Awesome man , can’t wait for that dyno Video!

[@Lethal_Venom]

Dyno was today, the car is a handful now lol. The video is dropping Thursday next week

[@OH3REDFIRESVT]

Can’t wait to see, how’s that supercharger whine now?

[@Lethal_Venom]

OH3 REDFIRE SVT ITS LOUD!!!, I’m doing more video tomorrow to go with the dyno video, there will be whining lol

[@OH3REDFIRESVT]

Awesome!

[@justin.c_svt]

Have you noticed what position your idler is in? According to billetflow with my 3 100mm and 1 92mm I should still be on the same belt as you with a 3.0 upper pulley. It was a tight fit and the tensioner is past the 2 square mark. I’m wondering how yours is

[@Lethal_Venom]

Justin SVT it seems to be fine, the sources I read said this belt should be a good fit

[@yugochrome]

Where did you find your black cobra badges? Car looks awesome!

[@Lethal_Venom]

Thank you. I'm not sure where they came from they were on the car when I got it. I'd try searching for it on google and see what comes up

[@prodbygustavo]

Sorry if this a dumb question but I can't seem to find an answer or really word this right to search for one.. But what is the purpose of the extra pulley installed? What exactly does it do? Wrap the belt around the superchager pulley tighter? More boost gain? Thank you in advance! Also finally got my first Cobra, my first manual, my dream car! 🐍

[@Lethal_Venom]

Congrats on getting one. These cars can be awesome but also need a little upkeep if it’s a driver as they get older. As far as the snub idler pulley that’s exactly what it does. When you drop the size of the supercharger pulley it will create more boost but also less surface area for the belt to grip to which can cause belt slip. The snub idler pulley helps to create more belt wrap around the supercharger pulley preventing belt slip.

[@racequad9]

i don't think it will put down more than 475whp on an unported blower. Between 455-467whp i'd say. If you get the numbers you posted, i'd be super impressed. Good luck!

[@Lethal_Venom]

racequad9 I only guessed high due to the weather conditions lol. Not even 60* and no humidity on the day it’s done on

[@racequad9]

@@Lethal_Venom haha that will definitely help. Can't wait to see the numbers

[@Lethal_Venom]

@@racequad9 Video on Thursday next week

[@kennethdurbin3385]

Okay so posted a video of my 3rd pull earlier. My gf has the other 2 pulls which I'll get and post later. 457hp, 474tq on 14lbs of boost with a 2.8 pulley, JLT CAI, o/r Bassani xpipe and borla stinger catback. TR6 plugs gapped at .035.

[@Lethal_Venom]

Very nice! Glad you did not have any issues with the pulleys. Nice numbers It must be a blast to drive now.

[@kennethdurbin3385]

@@Lethal_Venom thank you sir. Yes it's such a blast. Ass-end goes sideways in 1-3 if I romp on it. Lol. The whine sounds awesome but with my o/r xpipe, can't hear it like I wanted. Tuner says if I swap it back to the catted h-pipe, I wouldn't need to return it. That sound right? I've always thought if you went from a catted to non-catted or vice versa, it would need a tune. Trying to confirm for sure before I use my buddies lift to swap it. It sounds great but just too loud for me. Everyone looks at me like I'm annoying. 😂

[@Lethal_Venom]

@@kennethdurbin3385 yeah 1-3 is insane with the pulley swap. I'm not 100% sure on swapping no cats to cats but if your tuner says its fine Id go with that. You wont lose any power despite internet misinformation. Mine made really good power with cats on it.

[@kennethdurbin3385]

@@Lethal_Venom yeah I read online cats gives more hp than without. I've always heard the other way around. What was your numbers with that 2.76?

[@Lethal_Venom]

@@kennethdurbin3385 I made 483/520 on 12.9 PSI on a Dyno Jet. I'm not sure of the timing my tuner does not disclose that when he tunes them. Was yours on a dyno jet or a Mustang dyno?

[@fatkat311]

You may have covered this in the video but did you need the other pulleys? could you get by with only the smaller supercharger pulley

[@Lethal_Venom]

You should at least run the snub idler, you will probably get belt slip without it with going as small as a 2.76. I did the rest of the idlers because I did not have much faith with spinning the stock idlers faster with the smaller supercharger pulley because they are prone to explode at that point.

[@locos.garage]

What tool is that to remove the pulley boss?

[@Lethal_Venom]

lmr.com/item/MET-MPT0001/metco-supercharger-pulley-removal-install-tool-mpt0001?adpos=&scid=scplp&sc_intid=&gclid=CjwKCAjwloynBhBbEiwAGY25dNUUGQeVAXygh16R2rZnseAdZDVLSFSl4Knx659tZuAJ82kJy82iPRoCsZIQAvD_BwE

[@sergiodoordie319]

Mr lethal. I recently bought a 04 cobra terminator engine with low mileage .I own an 01 bullitt I bought that cobra engine for that car . My mechanic wants 6,000 plus parts to drop it in but he wants to tear it down to see if the engine is in good condition before he put in the bullitt . I do mechanic work but my skills are limited this work seems to beyond my skills set . I have all the wires and harness but the bullitt has the same harnesses very similar stuff in the engine bay. Do you think I should tackle this myself I feel capable . What would be the chances of me fucking it up I have the engine hoist have u done anything this big before

[@Lethal_Venom]

I have not done an engine swap before so I can’t give any insight on that. These are very strong engines so unless it was raced hard or did not have a good tune if it was not tuned at all then the chances of it having issues are low. I would do a compression / leak down test on it if you where concerned at all but I do not see any real reason to tear it down. Just seems like he wants more money out of the job. I do know that as far as replacing the engine it’s easier to do it from the bottom and drop the K member out vs trying to pull it out from the top.

[@LANDCRUISERLIFE]

So, I want to remove my 2.76 pulley to put stock pulley back.. I have read on billetflow website to remove the hub ring first by removing the allen head bolts. And then removing the black pulley hub with tool. Do not use tool with pulley ring on.. Problem is I can't get the pulley ring off, after I removed the allen head bolts. I mean is the ring press fitted too? I was under the impression that the pulley ring is a quick swap and should slide right out? I have lightly to moderately smacked it with a rubberized mallet and it does not budge? Any ideas?

[@Lethal_Venom]

@@LANDCRUISERLIFE honestly it’s been so long I don’t remember exactly. This video was a few years ago and I have not done a pulley swap on an Eaton since then. The whipple / VMP it’s much easier

[@LANDCRUISERLIFE]

@@Lethal_Venom Thanks for reply I posted on svtperf too. Either way, I will be calling Billetflow in a bit

[@Lethal_Venom]

@@LANDCRUISERLIFE Those guys will know, just been along time since I messed with an Eaton set up

[@aguachapan]

You need a tune after installing this pulleys? Thanks in advance

[@Lethal_Venom]

Yes, anytime you change the amount of available boost it will need to be tuned for it. The car can be driven prior to having the tune done ( such as taking it to be dyno) as long as you are not getting into boost. If you have a smaller pulley and it’s not yet tuned and you get into boost bad things will happen. I drove mine 2 hrs to get dyno tuned ( not getting into boost) and everything was fine.

[@aguachapan]

Thanks for this valuable information!

[@Lethal_Venom]

@@aguachapan Welcome

[@5.0_meatballmarinara]

Can you recommend somewhere for a email tune if I purchase a 2.76 pulley?

[@Lethal_Venom]

I would check with performance dyno and see if they do e-mail tunes I'm not 100% sure they do, if not check with Kevin Dunn, he also goes as 04Sleeper on the SVTP Forums

[@5.0_meatballmarinara]

@@Lethal_Venom thank you

[@Lethal_Venom]

@@5.0_meatballmarinara Welcome

[@MrFlabbybeast]

Any way to know when the 2.76 pulley is fully seated?

[@Lethal_Venom]

What do you mean by fully seated?

[@MrFlabbybeast]

@@Lethal_Venom pushed on the shaft far enough to line up properly

[@Lethal_Venom]

@@MrFlabbybeast yeah it’s on properly, I’ve had no issues with it

[@MrFlabbybeast]

@@Lethal_Venom I know it's on properly, I'm about to install one on my car, I'm curious how you know when it's on all the way...Like does it just stop once it's in the right place?

[@Lethal_Venom]

@@MrFlabbybeast the snout of the supercharger should be just about flush with that outer rim of the pulley. If you pause the video between the 6:30 to the 7:00 mark you can see how far it’s pressed on. You want the supercharger belt to line up with the snub idler so it’s on there and not riding on the edge of the snub idler pulley.

[@avinashuppaluppal5746]

Is that a 100mm or 92 mm idler

[@Lethal_Venom]

That is a 100mm idler

[@avinashuppaluppal5746]

@@Lethal_Venom what power numbers did you see it make ? Stock lower pulley?

[@Lethal_Venom]

@@avinashuppaluppal5746 Yes stock lower, exhaust, JLT intake and a tune. Put down 483 / 520 at 12.9 psi. This was my dyno video. kzbin.info/www/bejne/np6uen13naaNh80

[@Nicecardude100]

480 hp

[@Lethal_Venom]

Nicecardude100 will find out tomorrow!

[@Nicecardude100]

@@Lethal_Venom Perfecto. Man I love borla with an x pipe to youre the man. My fuel pump is bad in my wimpala. When I get that replaced I can have it my tune finished on it.

[@Lethal_Venom]

Nicecardude100 nice at least it won’t be too involved to get it straightened out. The catted X with the Borlas is so sick, had a co worked behind me today ( we live close by) and he messaged me later saying how good it sounded

[@Nicecardude100]

@@Lethal_Venom yea man do you remember the old kb 2.2 video 643 rwhp. The black one. It had stingers love them so much

[@Lethal_Venom]

Nicecardude100 yeah that’s a classic video. Still watch it sometimes