John Millican

iTrader: (1)

Here it is, I've been busy all week and finally got time to write and upload.

<a href=http://members.home.net/millicanga/swapping_a_lt1_intake_into_a_1st.htm>LT1 Intake Swap</a>


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86 Camaro Sport
LT1 Induction
383 Speed-O-Motive Crate Engine, Raptor 700R4 Tranmission, Trick Flow Twisted Wedge G2's, 58mm Accel TB, 3.73 Auburn Pro, SLP Cold Air Induction and Headers, Hooker Cat-back, Serpentine Belt Setup, Dual IROC Fans, Jamex springs, 16" IROC Rims, 36mm/24mm Sway Bars, Global West Steering Brace. Hotchkis Rear LCA's,Panhard Bar and SFC's.
My Camaro Project
Moderator at SE ThirdGen

jmd

iTrader: (4)

John, great photos, and job on the web page you made.

Makes me think of keeping the TPI and not going LT1

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jmd
1986 SS with...
86LB9 TPI atop the original L69, hydraulic clutch T5, Energizer 272 cam, chargedair.com fan, Global West CNR-88-C negative roll kit, 89 Iroc front springs, CC635 Moog rear springs and a whole bunch of other fun stuff

Tas

Insted of using a remote housing what about puting one inline on the radiator hose like the Dodge Dakota v8?

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-Tas
'89 Formula WS-6

305, TBI, 700R4, P.A.W. 14x3 open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips, Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248)
Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
AOL IM: superGRtaz


Got Beach?

John Millican

iTrader: (1)

Never seen one. Where does the top radiator hose hook to then?

RCR

Looks great. How does it run?

John Millican

iTrader: (1)

Runs like a LT1. Only better.

PETE

iTrader: (1)

dodge neon's have that inline setup someone was mentioning.however,it's impractical because there isn't enough surface room to install the temp sensors.way to go hopefully you'll post some before and after timeslips as well as your a.s.s'o'meter feeling(see poorman's dyno).

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87 trans am,gm crate 350(4 bolt mains 10to1),L98 aluminum heads,LT4 hot cam,slp runners,slp 1 5/8 headers,3in.y-pipe,edelbrock base,hi flo cat,air foil,afpr,as&m ported plenum,gutted airbox,t-5 tranny w/centerforce clutch and a 3.27 9bolt(11.9in. brakes),ed wright's fastchip,relocated iat sensor,160 fan switch&t-stat,tb bypass,accel supercoil,cap& rotor,slp 3in. catbcak,a/c delete.

SHE IS GONE BUT I KNOW THE GUY WILL GIVE HER A GOOD HOME.

best e/t:
3653lbs./full tank+ driver.
14.10@96.53mph 2.01 60'

John Millican

iTrader: (1)

I have posted before/after already.

Before 13.89 at 102.1 mph

After 13.44 at 104.6 mph (in 2nd gear at 7000rpm's. car would not shift into 3rd. Governor was bad in tranny).

Fastcamaro87

Great Job John!!

now a few questions,
how would this intake do on a 406? would it be a better idea than a fully siamesed long runner setup? and how much of the existing electronics are you using to run the motor? for example if i had to could i keep my MAF sensor etc. etc.

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87 IROC-z 305 TPI
Borg Warner T-5 fresh rebuild
10-bolt 3.73 Richmond gears rebuilt GM posi,
Ported Plenum and Runners Homemade AFPR
ACCEL 8.8 wires, High output coil,and cap & rotor
Bosch platinum + 4 plugs
Ram Air w/ K&N filters,
MAF sensor screens removed, TB coolant bypass
Polyurethane tranny and torque arm mounts
Dynomax catback w/custom tips
K&N oil filter,Mobil 1 synth, Futura GLS Super Sport tires 265/50/15 rear and 235/60/15 front mounted on 86 monte carlo SS rims ,

400 sbc and a 6 spd in the works

Zepher

iTrader: (1)

I like that, it looks great.

Ed1LE

iTrader: (39)

Here's the question we all want to know! How much will you charge to do more?....Maybe if someone supplies the actual intake?....I plan on doing a nie 383 this winter & would like to go w/ a nicer intake system w/out shelling out $800 -$1200 for a superram or miniram! Definitely willing to spend a couple dollars though, just lack the time! Story of everyone's life, right!?!?

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'91 Z28 1LE; 355, Sportsman II heads, Edelbrock TPI w/ 58mm TB, Tremec TKO 5-speed, 3.73's & much, much more

John Millican

iTrader: (1)

Just e-mail me, most people have already. I have since sold my spare and am looking for more intakes.

ImportsRsloths

John i think i remember you saying you couldnt use an lt1 intake with maf becuase it will "max out the flow charts"???? could you custom program a prom like youd have to if you got a TPIS miniram??? Thats BAD @$$!!

ScreaminDeamin85Z

so you cant use the LT1 intake with a MAF?

age

John, I just wanted to say, THANK YOU for sharing your knowledge and experiences.. the info and pics are EXCELLENT!

It's good to know that there are people like you out there who are willing to help others and share what they have

John Millican

iTrader: (1)

I never said you can't use the MAF, you would have to get creative in the programming because of the limitations of the MAF tables.
It would be simpler to go Speed Denisty but it will run with a MAF system.

ImportsRsloths

Dont they sell proms at TPIS for MAF and The miniram.... IF you can make a miniram run with MAF then you sure as hell can get a STOCK lt1 manifold to run.... A miniram is just a highly hogged, ported, and polished, LT1 style manifold set up for w/o reverse cooling. matt

ImportsRsloths

ttt

ImportsRsloths

Also, are the air charts the same on a LT1 prom.... that would be a good start... just use the LT1 flow charts for your TPI prom???? could that work??? or are the tables totally different..... youd have to use a 94+(???) lt1 prom because 93 has speed density?

John Millican

iTrader: (1)

My understanding is the LT1 uses a totally differant computer so I highly doubt the files are the same design.

Scott 88 GTA

The computers are totally different. 94-97 LT1's are actually BOTH SD and MAF. You could look at the charts to get a basic idea of things, but that's about it. I'll probably be looking at my friends when I do this swap soon.

ImportsRsloths

Scott what kind of motor and exhaust are you going to put the LT1 manifold on???

ImportsRsloths

Also Scott i bet some of the charts are the same for MAF???? Do you think you could print the charts off and load them onto the internet for others to view???

fly89gta

iTrader: (1)

all i have to say is WOW! Nice job man, if i was going to keep the L98 i'd do the LT intake swap in a hearbeat but i'm going turbo 3.8

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Check out MyGTA Nicknamed:The Big Red Machine
***AOL IM ClarkeMustGoNow***
Moderator at www.transamgta.com
"What does not kill us only makes us stronger"

Tony

Scott 88 GTA

My motor specs are in the sig. And the LT1 computer only uses the MAF for part throttle stuff, which we could use for a base anyway. And yeah, I'll see if I can upload it for everyone to see.

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Black 88 GTA L98
261 RWHP, 345 RWTQ
13.406 @ 103.72 MPH
ZZ4 bottom end, Edelbrock 6085 heads, LT4 HOT cam, GMPP 1.6 RR's, ported stock TPI, SLP 1 3/4" headers, no cat, Dynomax cat-back, Stock PROM
E.T.F.A Treasurer

ImportsRsloths

Here is a few tables from an LT1 prom..... that maf.jpg is the stock maf table..... does this help at all??
http://docmudge.tripod.com/Tuning/

[This message has been edited by ImportsRsloths (edited October 16, 2001).]

ImportsRsloths

TTT

u r sofa king we tah did

where did you get your remote thermostat housing at?

John Millican

iTrader: (1)

Remote thermastat housing I got. It's made by Weiand, the part number is 7134P for a polished one and 7134 for unpolished.

It's at Summit for $60 something bucks. I got mine from http://www.rpmcat.com/ , just type "remote thermastat" in the search window. It's $45 there. Polished version.






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86 Camaro Sport
LT1 Induction
383 Speed-O-Motive Crate Engine, Raptor 700R4 Tranmission, Trick Flow Twisted Wedge G2's, 58mm Accel TB, 3.73 Auburn Pro, SLP Cold Air Induction and Headers, Hooker Cat-back, Serpentine Belt Setup, Dual IROC Fans, Jamex springs, 16" IROC Rims, 36mm/24mm Sway Bars, Global West Steering Brace. Hotchkis Rear LCA's,Panhard Bar and SFC's.
My Camaro Project
Moderator at SE ThirdGen

u r sofa king we tah did

2 quick questions, i noticed you put on your web page that your throttle cable was too long. was this your stock cable that was too long or did you have a cable from a 93 Z28? and the tv cable, do you have the part number for the tv cable you bought at gm, or atleast remember the price of it?

John Millican

iTrader: (1)

Yes, my stock throttle cable was too long, i shortened it almost an inch by cutting the end off and brazing it back on.
I am using a TPI throttle cable due to the 3rd gen style throttle body. If I had a LT1 throttle body I would have used a LT1 cable, you cannot mix throttle cables from the 3rd gen style to a LT1 TB. They are differant linkage.
My TV cable was short and I don't know why. My car was not orginally TPI, it was carbed. I changed TV cables when I did the TPI swap a couple years ago. I bought the cable from the dealer. I probally got the wrong one because I've looked at other TPI cars and they are rather long. My TV cable barely made it to the TPI, it was tight. That's probally why I ended up buying a '93 TV cable. BTW, the '93 TV cable is plenty long!
My recommendations is wait and see, I went to the dealer when I needed it and they stocked it, no special order. List price is $29, most dealers give a little discount so I got it for $24.

u r sofa king we tah did

cool, thanks for the info. ive already made my template for the distrib. hole, (pretty easy by the way) next i just gotta buy those special sized taps and get the heater hose fittings from napa. cant wait to drive this thing once this is done!

davehamilton

Sorry if I missed the info but how does this deal run? Nice looking job. Dave

John Millican

iTrader: (1)

My track times aren't great due to a sick tranny after the swap. Here goes.
Before 13.89 at 102mph
After 13.44 at 105mph I went through the traps in 2nd gear due to a transmission governor problem!. I'm sure a 12.90 is in the future when the sick tranny is fixed.

Earl 87gta

Has any one tried this with the 93 intake yet I have one but their is that fuel rail problem just wondering if any one has found out if this is going to have a clearance problem.

Stroked-Z

Hey where can i get that CATS engine tuner? And about how much are they worth? I guess this is a necessity to program your own proms?

Stroked-Z

I am assuming you can use that on an '87 Iroc with the stock TPI?

John Millican

iTrader: (1)

TTT

RCR

Stroked-Z:

See the PROM board on burning chips. Also read Traxions tech article.


Now, how many people are trying John's conversion?

Grumpy

Sorry, but no.
The LT1s use the MAF all the time.
The MAP is for OBDII diagnostics that the MAF is acting resonably right, and uses MAP in case of a MAF failure.
You can run an LT1 in MAP mode, thou. This will allow you to run MAFless.
The MAP tables are nice in configureation, but in my testing when running MAP only too rich at WOT, and too much timing.

Now if you do a Z06 type pre MAF tract, you'd really be onto something, if you want/can run MAF with a LT1 PCM. The newer tract allows for screenless running of a late MAF.

Grumpy

Nice job!.

RCR

John, great site. Lots of good info. So much so that I started my version last night. Question for you: What braket did you use for your throttle linkage, etc? Was it the original LT1, or fabbed?

thanx, I'm sure I'll more questions later...

John Millican

iTrader: (1)

Throttle bracket is the 1993 LT1 one since it is the only one with a TV cable. I did retain my throttle cable and just shortened it to fit. Also had to open up the spot on the bracket where the throttle cable snaps into. I moved it closer inboard as well. All this would not have been nessacery if I had obtained a LT1 throttle body.

John Millican

iTrader: (1)

.

Free Bird

iTrader: (1)

What was you 60' and 1/8 mile? This could help determine the projected 1/4 mile time.