Mr. Ed buggy

[91oneton]

A naturally asperated motor is differant than a turbo motor when comes to horse power ratings.

i think hp is hp the crank is still seeing 800hp no matter if it comes from 89octane or nitrous or boost.

still gonna be badass but probally gonna need to build the motor

 

[snappy]

He is probably refuring to the "shock" the boost puts on the crank and rods when the turbo spools. We had the same problem when we sprayed large amounts of n2o.

 

[JeepKrawlr]

Just looked over the pics.
Those twin turbos look sick. Can't wait to see this in its complete stage.

 

[firetoy]

from what i understand, a turbo charged motor makes power differently than a naturaly aspirated motor, basically if you had two motors that have the same hp. the turbo motor will make that power easier and with less stress on the motor. the reason being where the detonation happens and how long it lasts. the flame burns longer. If that makes any sense. thats what i've been told. i've got a buddy with lots of experience with turbo charged motors. and i had the same concerns you guys are bring up, but he claims it will hold it.

 

[orange150]

basically if you had two motors that have the same hp. the turbo motor will make that power easier and with less stress on the motor.

We're assuming same HP and displacement?

 

[Jeff B]

Progress?

 

[Appalachian American]

wild ride. enjoy following your build.

 

[firetoy]

pics to come.

 

[WARRIORWELDING]

from what i understand, a turbo charged motor makes power differently than a naturaly aspirated motor, basically if you had two motors that have the same hp. the turbo motor will make that power easier and with less stress on the motor. the reason being where the detonation happens and how long it lasts. the flame burns longer. If that makes any sense. thats what i've been told. i've got a buddy with lots of experience with turbo charged motors. and i had the same concerns you guys are bring up, but he claims it will hold it.

turbo's, blowers, superchargers and any other induction device will only allow you to pack more of the boom boom juice in the cylinder head. Ignition of corse makes the boom. The only thing that elongates the boom is valving and cam timing. Longer opening and closing times, hence the horse power lope. Turbo engines make the power by forcing more mix, cams aren't ussually a factor because the mix is forced so no need for more duration from a cam. The lower compression pistons allow the engine to spin more freely and rev faster making more boost from the exhaust side quicker with less lag. It also offsets the compression being made by the boost. BIGWOODY has the engine build approach nailed down, and Brandon's right HP is HP. correctly built bottom ends last along time in these motors, heads and intakes will get more abuse because of boost going in, but when it goes boom in the cylinder after compression ratio its all the same.

 

[firetoy]

turbo's, blowers, superchargers and any other induction device will only allow you to pack more of the boom boom juice in the cylinder head. Ignition of corse makes the boom. The only thing that elongates the boom is valving and cam timing. Longer opening and closing times, hence the horse power lope. Turbo engines make the power by forcing more mix, cams aren't ussually a factor because the mix is forced so no need for more duration from a cam. The lower compression pistons allow the engine to spin more freely and rev faster making more boost from the exhaust side quicker with less lag. It also offsets the compression being made by the boost. BIGWOODY has the engine build approach nailed down, and Brandon's right HP is HP. correctly built bottom ends last along time in these motors, heads and intakes will get more abuse because of boost going in, but when it goes boom in the cylinder after compression ratio its all the same.

hey appeciate the info. i'm going to look into a few things.

 

[firetoy]

update pics

update, intercooler mocked up.

 

[awheelterd]

what are your plans for protecting the fans/ intercooler in case of a rollover?

 

[Gmachine]

hp is hp, but the torque a turbo motor makes is drastically different. So increased torque along with any detonation will destroy a weak bottom end. Tune is key.

Just my .02.

Awesome build by the way! It will need slicks for at least one pass.

 

[firetoy]

there will be some kind of schroud that will cover everything. fans are just sitting there. i think i will mount them under the intercooler.

 

[SSWaters]

Awesome, I just saw this and it's 5 pages deep.

I love your creativity, you and George G.

 

[Hurley]

I would check no joke bc that is a lot of turbo to keep up even being vgt once the waste gate opens u are going to float down around 3lb loss I don't know what u are planning on running max boost wise but remember those are big turbos the guy that chimed in about flow rate better realize that u are only running 4cyl on each turbo
In

stock cummins 24V head flows less than 200cfm.

A single stock ls1 head flows 220-ish cfm, no? http://www.performanceworks1.com/ls1__ls6_head_flow.htm

(conditions being near equal, i.e. on a bench)


with that being said, I think it's appropriate to understand turbo sizing and 'acceptable' applications here, and not just throw around generalizing statements. This may not be a 1kwhp engine build, but you'd be surprised how well it will respond to the VGT's (assuming the control system performs well).

 

[firetoy]

stock cummins 24V head flows less than 200cfm.
A single stock ls1 head flows 220-ish cfm, no? http://www.performanceworks1.com/ls1__ls6_head_flow.htm
(conditions being near equal, i.e. on a bench)
with that being said, I think it's appropriate to understand turbo sizing and 'acceptable' applications here, and not just throw around generalizing statements. This may not be a 1kwhp engine build, but you'd be surprised how well it will respond to the VGT's (assuming the control system performs well).

thanks for the specs. there are guys running these turbo's on 4 cylinder civics and such. also i will not be holding this thing at 800 hp. i might spike from time to time. also as far as lowering compression (like would be done for an optimal turbo setup) i don't want to lower the motors none boost hp. i want the 350'ish stock hp to get going, then have the turbo come in as soon as possible.

 

[firetoy]

mockup

wheel base will be around 120"

 

[cgm147]

Giggidy giggidy

 

[braxton357]

Like how the back ended up. Needs an HID bar up top now.

 

[houdini]

Like how the back ended up.

agreed! the tube work and design of the back end looks great!

 

[firetoy]

thanks guys. just pick up a couple HID's

 

[farmboy]

I may have missed it but please tell me your using two stub shafts on shortened side of the rockwell.

 

[firetoy]

Yep two stubs.

 

[firetoy]

rear four link

trying to figure out the rear four link. one of the lower links will be countersunk into the rockwell housing.