1986 camaro 305 Procharged TPI dyno

1986 camaro 305/ 5 speed with D1SC procharger 3 core intercooler 11 #'s boost, methanol injection, converted to TPI 380RWHP 420 RWTQ. this is an older video car now has an LQ9 swap check back for more videos to come!

[@Brock_Landers]

For real though, 380/420 is DAMN good numbers for a 305.

[@ChrisGarage]

yes, people told me i was lying and had a 350

[@keenanwengert423]

@@ChrisGarage yeah typical talk from people who think that the 350 is somehow a completely different engine from the 305. It's just a difference in bore and valve size.

[@b.c4066]

No, damn good numbers for tpi period. The fact it's a 305 is awesome.

[@CaptainThirdGen]

tpi and procharger. very epic combo

[@coryholbrook4643]

Read the description, nice output. A fun power level without being too much. Kinda sad you ditched the TPI setup (don’t have to keep the stock TPI parts…)though and didn’t just go with a bigger engine and FI. Going LQ9 made it a little less stand out these days. Lots of LS swap guys.

[@ChrisGarage]

The only thing that was stock was the plenum and that I ported it was accel base and runners. The TPI looked awesome but sadly what I wanted from the car. The LS swap was the best thing I’ve done as far as the power plant

[@timc8551]

That is some pretty great power for a 305, I imagine quite a blast to drive with the centrifugal supercharger helping out with not falling off so hard at the top, would love to have seen the dynograph

[@ChrisGarage]

T C I have the graph somewhere around here

[@JeLifeCoach]

@@ChrisGaragewhat all do u have to change for this setup? Mine is just stock 305 but this video is really inspiring.

[@ChrisGarage]

@@JeLifeCoach I never intended to supercharge this. So it was a stock 305 block rebuild. I had a cam, headers, exhaust and the upgraded TPI components. I did my own tuning. I ditched this setup for a 6.0 lq9 ls best thing I’ve done.

[@mustang8812822]

Feels like I'm looking at a car i had,,86 TPI Z28..kept it mostly stock other than some flowmasters, star rims, nightrider gauges, and a yellow with blk strips paint job..sadly a deer causing injury made her never the same after that.😣😭

[@davidcraft4909]

Thats some really good power, but it doesn't surprise me because a 305 tpi is the strongest running version of the 305 I think. One of my friends had one in a firebird and of course it was tuned and had some minor upgrades that I don't really know what they were. but stock block stock heads stock intake runners. and yeah it ran really strong for a 305. I would of just kept running that engine instead of ls swapping it, but thats still cool.

[@robertpursley4907]

The L69 and LE9 were fairly comparable to this variant which was the LB9 version. Mainly, the heads cam and intake all were different which made the power differences. The short blocks as far as I am aware were really similar if not the same. The difference is for some reason, fuel injecting a 305 makes a big difference in power numbers for some strange reason, whether it be because of A/F mix having better flow and velocities I’m not sure, I have studied the numbers though, even modded the modded TPI systems out perform the carburetors just are not as reliable.

[@Mike-me8vl]

Beautiful car, Impressive numbers.. Does this allow the tpi 5.0 and 5.7 to make more hp at a higher rpm? Still have the graph? This is what I am on the fence about, buying a cherry third gen and swapping a ls in it, or going procharged.

[@ChrisGarage]

Thanks, this is an older video. i have the graph some where. it doesn't make more power at high RPM intake is still limiting. i pulled this motor about 5 years ago and swapped in a 6.0 LQ9 LS motor with a hot cam. i wish i did that sooner :)

[@robertpursley4907]

A TPI will pretty much always have a very bell shaped power curve, the length of the runners just won’t allow for higher rpm, but that doesn’t mean it can’t perform, 305,350,400 engines all do extremely well with TPIs just limits the cam specs you can run. At least if you are talking about the factory TPI. Aftermarket TPI induction systems that have much shorter runner length will make power at higher rpm like you are wanting and you can run a more radical camshaft as aggressive camshafts want to make peak power at higher RPMs and have more of a linear power curve.

[@joshmeselfhighup1603]

I wonder what it would make on my 305 tbi n who tune it My has every bolt on made n its will churp the tires

[@ChrisGarage]

i did my own tuning on it using a 7730 ecm and Tunerpro RT with a moates ostrich emulator

[@joshmeselfhighup1603]

@@ChrisGarage wow thanks for replying

[@jamesstrickland5387]

1986 has a v belt system...did you have to convert to serpentine for the pro charger?

[@ChrisGarage]

Yes I ran a stock 1988 setup

[@jamesstrickland5387]

@@ChrisGarage right on thank you for responding

[@ryanwilliams3369]

That's coo!

[@ryanwilliams3369]

83 lg4 firebird 5 speed Bolt ons 1.6s stock cam no springs. Weight reduced and full umi with stock springs. More of A touring car. Wanna make the 373 which all t5s have to 3.08 and shoot for 30mpg Converted linkage to hydrologic throw out. Having issues with the rod angle. At the moment

[@gmetz100]

Awesome. I have an 87 camaro 305/T5. Planning to get a procharger soon and 3:73 gears. Did you ever run the 1/4 mile with procharged 305?

[@ChrisGarage]

Greg Metzger yes, I think it was a 1.69 60’ baby launch consistent 12.64

[@ztwntyn8]

Chris's Garage 1.69 “baby” launch I doubt it. Maybe not Deion clutch at redline but you don’t halfass outa the hole and get those numbers with that power level.

[@ztwntyn8]

Greg Metzger a friend of mine had procharged formula Firebird 305 tpi and ent best of 12.8 but typically in the heat mid/low 13. After heat soak it slows a couple tenths and a cold day does wonders especially if you have no intercooler. I’d do a 5.7 s/c or ls swap n/a will make that power numbers with a canned 5.3. Not putting anybody’s car down though. I think it’s interesting to see what the tpi on boost does.

[@ChrisGarage]

you are right, i was going off the top of my head, those numbers were from 2008. it was a 1.79 60'

[@ChrisGarage]

Sorry, it was a 1.79 60'

[@shr3ddymurphy]

Damn these are some decent numbers! Curious, what made you go to 6.0 swap? (Considering all the work involved)

[@ChrisGarage]

because the 305 wasn't what i wanted. the drivability was not there. and i'm handy so the swap was pretty much effortless. if i had to do it again. i would have done it sooner.

[@BuddyLuvBihh]

@@ChrisGaragedo you still have the procharger kit ?

[@ChrisGarage]

@@BuddyLuvBihh no, sold it years ago

[@timothymccarthy8828]

How much can you make on stock bore?

[@robertsulicz7565]

What numbers? I didn't see a computer screen or any numbers posted. I would love to tho! Great car!

[@ChrisGarage]

Robert Sulicz numbers are in the description

[@tonyhaynes4694]

What rims is that? They look great.

[@ChrisGarage]

Tony Haynes those are s10 wheels with the zq8 option

[@vicdiaz5180]

You can also get the chrome IROC wheels in 16”, 18”, and 20” from American racing

[@adamfehr318]

stock computer still or aftermarket? if aftermarket, any recommendations?

[@ChrisGarage]

That was a stock 7730 computer that I was tuning with a moates ostrich. I later went to the $59 code with bigger injectors and no FMU

[@sovereignjea]

So if you put down those numbers, any particular reason you wanted to still LS swap it?

[@ChrisGarage]

Yep! Drive ability... tuning... reliability potential for more power

[@sovereignjea]

@@ChrisGarage Ah I see. I've Ls swapped before, but only because my 305 tpi couldn't take my foot anymore and I couldn't see the possibility of getting those kind of numbers out of a SBC without spending stupid amounts of money. Nice to know its possible with a supercharger. Thanks for the reply!

[@d-phoenix2198]

How many mpg did it get on the highway?

[@ChrisGarage]

Don’t know. Don’t care about mileage :)

[@jaypee389]

305 more reliable then 350?

[@ChrisGarage]

They are identical except for bore size. SBC are old news. She’s sporting a cammed lq9 6.0LS motor now

[@jaypee389]

@@ChrisGarage SBC 4 bolt main can still go 30 plus psi.

[@supercobra14560]

What else was done to the 305 to get those #s?

[@ChrisGarage]

world product s/r torquer 305 heads. crane 2032 roller cam/1.6 ratio roller tip rockers, block bored .20 over, accel porter lower base, accel runners, ported plenum, holley 52mm throttle body, 30# injectors, snow stage 2 methanol injection kit, headman shorty headers, edelbrock rpm series cat back, and the procharger d1sc.

[@supercobra14560]

Really couldn't push more out of it huh?

[@ChrisGarage]

@@supercobra14560 probably could have but the bottom end was stock. if i did it forged i would have pushed more boost.

[@supercobra14560]

I have a really healthy 305 TPI that I will be Putting a Paxton on. My goal is 400/400. I built the suspension to the max. Car has 4 pistons SS brakes, with 18x9 GTA/GNX wheels. Now it's time for the engine. What rear end/trans did the car have?

[@supercobra14560]

You still got that engine laying around?

[@Titomjay]

😳

[@josephruff33]

What injectors

[@ChrisGarage]

At that time 30# ford Motorsport injectors

[@josephruff33]

@@ChrisGarage thanks.. was it tuned or just throw those on there and roll?

[@ChrisGarage]

Josephruff33 Ruff no you can’t just throw on and roll. At that time I did the tuning on a 7730 ecm with a 92 tune using the pro charger fuel fmu. I later switched to 42lb injectors the 7730 ecm and $59 code before swapping to an LS

[@josephruff33]

@@ChrisGarage thanks bud.

[@iamnitrox]

5000.00 dollar supercharger on a 250.00 engine lol

[@ChrisGarage]

250.00? haha more than that. it's retired anyhow

[@formula112967]

@@ChrisGarage I think he said $250, because as you probably know, you can go to a bone yard and yank a 305 TPI motor for $250. I have 5 bone yards that I live close to, and they have '90's LT1 motors for $300, and LQ 5.3 AND 6.0 LS motors for $400-$600.

[@ChrisGarage]

@@formula112967 was not a stock 305. It had the accel intake runners. Holley throttle body etc. cam heads. The supercharger and motor have been gone for years now.

[@dazombies101]

@@ChrisGarage I don't suppose you have pictures of how you had your methanol tank setup? I'm currently putting a vortech v3-si on a 305 TPI with a cam.

[@leestringfield6177]

Numbers?

[@ChrisGarage]

in the description. it dyno'd 380rwhp and 420 ft/lbs

[@jeffcraven2437]

I knew it was possible to get decent numbers out of a TPI... how much boost?

[@ChrisGarage]

14#'s

[@killercrawlers12]

That sounds like a v6

[@ChrisGarage]

Lol you sound like you’re down on cylinders also.

[@vicdiaz5180]

Sounds like a V8 to me 🤷‍♂️

[@trillrifaxegrindor4411]

said noone ever,you fucking deaf tit