7MGE Shortblock

supraman7mgte

supraman7mgte

Shut up,bitch!!
Apr 1, 2005
1,753
0
0
Sunny California
I checked with Gude Performance and the following head& cam info is as follows
86-92 CRESSIDA, SUPRA - 7MGE DOHC 24V 6 CYL


4040
GRIND NO.:

DESCRIPTION:
Pulls strong from 4200 to redline.

POWER BAND:
3800 R.P.M. to 6800 R.P.M.

IDLE:
(Good)

SPECIFICATIONS:
Intake
LIFT -
0.365
DURATION -
236

Exhaust
LIFT -
0.365
DURATION -
236


87-92 SUPRA TURBO - 7MGTE DOHC 24V 6CYL


4141
PART NO.:
TYCS05

Intake
LIFT -
0.365
DURATION -
236

Exhaust
LIFT -
0.365
DURATION -
236
 
suprabad

suprabad

Coitus Non Circum
Jul 12, 2005
1,796
0
0
Down Like A Clown Charley Brown
supra90turbo said:
not another one of these threads.

shaeff, p5150: please keep going.
suprabad: you are wrong. admit it, there was misinformation. lets leave it at that.

if you are unhappy or feel unsafe with oil squirters, just shim the relief on the oil pump. but not more than 6mm

the 7mgte is a "high volume, low pressure" oiling system. there's plenty of oil to douche the pistons at high rpms.

please dont let this turn into a flame war, it will get out of hand quickly. lets just converse on this topic calmly.
Click to expand...

First of all I'm not getting into a flame war. Have you heard me say anything mean or cutting? No you haven't.

The fact is alot of people don't like the piston squirters. And yes they do to lower oil pressure, period. If you want to believe otherwise fine, I dont care, but facts are facts and I'm not gonna kiss your ass cause you like oil squirters. And I'm not quoting anyone because I don't want to involve some of the more respected members of this and other forums who've expressed the same views. So don't waste your time telling me different.

Ok, back to the thread.
 
Last edited:
suprabad

suprabad

Coitus Non Circum
Jul 12, 2005
1,796
0
0
Down Like A Clown Charley Brown
supraman7mgte said:
I checked with Gude Performance and the following head& cam info is as follows
86-92 CRESSIDA, SUPRA - 7MGE DOHC 24V 6 CYL


4040
GRIND NO.:

DESCRIPTION:
Pulls strong from 4200 to redline.

POWER BAND:
3800 R.P.M. to 6800 R.P.M.

IDLE:
(Good)

SPECIFICATIONS:
Intake
LIFT -
0.365
DURATION -
236

Exhaust
LIFT -
0.365
DURATION -
236


87-92 SUPRA TURBO - 7MGTE DOHC 24V 6CYL


4141
PART NO.:
TYCS05

Intake
LIFT -
0.365
DURATION -
236

Exhaust
LIFT -
0.365
DURATION -
236
Click to expand...

Hmmm...Am I reading this correctly (I'm tired) It looks like they're the same exact cam....that can't be right.
Can somebody enlighten me?
 
I

IJ.

Grumpy Old Man
Mar 30, 2005
38,728
0
0
62
I come from a land down under
My "Take" on the Squirters...

I don't believe they're needed on anything but a sustained effort motor ie: A race car that's on boost for a large percentage of each lap a tractor puller aircraft motors stationary engines such as powering large generators or pumps...

If you have a motor with a well designed Oil System that has a temperature controlled cooler they can be an integral and useful component but the way the 7M cooler circuit is designed (ass backwards) I don't think the pressure drop is worth the marginal benefit they provide.

Having said that you're probably wondering why I just bought a brand new 7M block and am going to use the squirters, in the past I've modded GE blocks to use but this time I sourced a GTE as the Pauter Rods I'm using DON'T have the Oil Holes in the beams and I was concerned that using the Crank Scraper I might be starving the Thrust side of the Cylinder wall and end up scuffing it.
 
S

Supra7MG

Supramania Contributor
Oct 13, 2005
150
0
0
Duncansville, PA.
Hey Guys,
Just my experience Turbo'ing a 7MG. In 91 I Turbo'd my 88NA by utilizing a then available HKS kit. At that time my car had 10,200 on the odo. Car now has 38,600 with zero problems. The toughest part was that at the time I did the conversion there were no sources of good info. The HKS instructions were translated to English and were terrible. Back then my old racing buddies thought I was crazy. I think that I had great foresight! I'm running a 3mm steel headgasket from HKS to drop compression to 8.5. Stock NA pistons. If I were doing this today I probably would go with a 2mm gasket. I'm running an HKS external oil cooler with a thermostat. Fuel is tuned via an HKS F-Con and 440cc injectors. The appropriate Eprom and dip switch settings for the F-Con are still available from HKS. The stock AFM is retained, although I have opened up the internal ID as mudh as possible and polished the inside to a mirror finish. This mod along with having RC engineering bore out the NA throttle body to the max has yielded me very good throttle response and driveability. My full on EGT Temp is 1375 1/2"" from the head on #6. Turbo is a 57Trim Garret TO4B with an external gate. I usually run 14psi and easilly light 275/40/17s from a 2nd gear roll. Car is a slayer on the street and is still at full weight. I have done much too much to list here but I felt that what I have posted would be of some help.
 
shaeff

shaeff

Kurt is FTMFW x2!!!!
Staff member
Super Moderator
Mar 30, 2005
10,588
10
38
Around
suprabad said:
C'mon Shaef, you're killing me here. Why are you so in love with the oil squirters? You won't even admit lots of people don't like em? Do you own a piece of the oil squirter manufacturing company? LOL:biglaugh:
Click to expand...

because they decrease the chance of detonation. :) any little bit that helps prevent detonation and either A) killing my headgasket, or B) destroying my pistons is gladly welcomed into my engine bay. :)

besides, they're there for a reason, as previously stated, they're not a parasitic loss to the oil pressure issue. if you want higher oil pressure, either A) shim your oil pump relief, or B) get rid of the stock restrictive oil filter mount, and replace it with a remote filter, basically getting rid of the pressure based oil cooling, which is just plain stupid, and gaining oil pressure as well. :)

-shaeff

i admit i've heard of several people not liking the oil squirters, but i'm willing to bet that more people like them then those that dont. i'm not criticizing those who prefer not to have them, i just happen to side with those who believe them to be beneficial. :)
 
tubbie

tubbie

Yes, powerful Jedi....
Apr 4, 2005
821
0
16
Hoschton, GA
Supra7MG said:
Hey Guys,
Just my experience Turbo'ing a 7MG. In 91 I Turbo'd my 88NA by utilizing a then available HKS kit. At that time my car had 10,200 on the odo. Car now has 38,600 with zero problems. The toughest part was that at the time I did the conversion there were no sources of good info. The HKS instructions were translated to English and were terrible. Back then my old racing buddies thought I was crazy. I think that I had great foresight! I'm running a 3mm steel headgasket from HKS to drop compression to 8.5. Stock NA pistons. If I were doing this today I probably would go with a 2mm gasket. I'm running an HKS external oil cooler with a thermostat. Fuel is tuned via an HKS F-Con and 440cc injectors. The appropriate Eprom and dip switch settings for the F-Con are still available from HKS. The stock AFM is retained, although I have opened up the internal ID as mudh as possible and polished the inside to a mirror finish. This mod along with having RC engineering bore out the NA throttle body to the max has yielded me very good throttle response and driveability. My full on EGT Temp is 1375 1/2"" from the head on #6. Turbo is a 57Trim Garret TO4B with an external gate. I usually run 14psi and easilly light 275/40/17s from a 2nd gear roll. Car is a slayer on the street and is still at full weight. I have done much too much to list here but I felt that what I have posted would be of some help.
Click to expand...

I always remembered HKS having that option for the F-CON. I could just never find enough info on it. Now everyone go and buy an F-CON to turbocharge your NAs.... I will be doiing that to my dad's 88 supra...
 
Fuzz420

Fuzz420

Are U Here 2 take My Baby
Apr 30, 2005
1,970
0
0
40
Infinite Consciousness of One
www.hiphop-universe.com
im also interested in a NA-T swap.Ive seen a lot of threads like these lately so a lot of my question have been anwered with asking and just reading. But i would like to know minus all the talk about the oil squiters, how benificial would it be to run a turbo oil bump with in a NA-T swap, or is it even possible. I know the turbo pump flows more for the oil squirters, but taking that out of the equation would the NA oil pump be up to the task.
 
shaeff

shaeff

Kurt is FTMFW x2!!!!
Staff member
Super Moderator
Mar 30, 2005
10,588
10
38
Around
suprabad said:
...and I acknowledge and respect you for that.:icon_bigg
Click to expand...

as i do you! :) (and ian, since he's on the no oil squirter team) haha.

-shaeff
 
You must log in or register to reply here.
Top Bottom